AMETEK ReFlex User Manual

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ReFlex Power™

Programming Manual

M380056-03 Rev M www.programmablepower.com

About AMETEK

AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design and manufacture of precision, programmable power supplies for R&D, test and measurement, process control, power bus simulation and power conditioning applications across diverse industrial segments. From bench top supplies to rack-mounted industrial power subsystems, AMETEK Programmable Power is the proud manufacturer of Elgar, Sorensen, California Instruments and Power Ten brand power supplies.

AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromechanical devices with annualized sales of $2.5 billion. The Company has over 11,000 colleagues working at more than 80 manufacturing facilities and more than 80 sales and service centers in the United States and around the world.

Trademarks

AMETEK is a registered trademark of AMETEK, Inc.

Other trademarks, registered trademarks, and product names are the property of their respective owners and are used herein for identification purposes only.

Notice of Copyright

ReFlex Power™ Programming Manual

Exclusion for Documentation

UNLESS SPECIFICALLY AGREED TO IN WRITING, AMETEK PROGRAMMABLE POWER, INC. (“AMETEK”):

(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR

OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.

(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES, WHETHER

SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK, AND

HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED. APPROVED AMETEK CONTENT IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION, WHICH IS POSTED AT WWW.PROGRAMMABLEPOWER.COM.

Date and Revision

May 2014 revision L

Part Number

M380056-03

Contact Information

Telephone: 800 733 5427 (toll free in North America) 858 450 0085 (direct)

Fax: 858 458 0267

Email: sales.ppd@ametek.com service.ppd@ametek.com

Web: www.programmablepower.com

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Elgar ReFlex Power™ Contents

Important Safety Instructions

Before applying power to the system, verify that your product is configured properly for your particular application.

WARNING

Only qualified personnel who deal with attendant hazards in power supplies, are allowed to perform installation and servicing.

Ensure that the AC power line ground is connected properly to the Power Rack input connector or chassis. Similarly, other power ground lines including those to application and maintenance equipment must be grounded properly for both personnel and equipment safety.

Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any cable. In normal operation, the operator does not have access to hazardous voltages within the chassis. However,

depending on the user’s application configuration, HIGH VOLTAGES HAZARDOUS TO HUMAN SAFETY may be normally generated on the output terminals. The customer/user must ensure that the output power lines are labeled properly as to the safety hazards and that any inadvertent contact with hazardous voltages is eliminated.

Guard against risks of electrical shock during open cover checks by not touching any portion of the electrical circuits. Even when power is off, capacitors may retain an electrical charge. Use safety glasses during open cover checks to avoid personal injury by any sudden component failure.

Neither AMETEK Programmable Power Inc., San Diego, California, USA, nor any of the subsidiary sales organizations can accept any responsibility for personnel, material or inconsequential injury, loss or damage that results from improper use of the equipment and accessories.

Hazardous voltages may be present when covers are removed. Qualified personnel must use extreme caution when servicing this equipment. Circuit boards, test points, and output voltages also may be floating above (below) chassis ground.

The equipment used contains ESD sensitive parts. When installing equipment, follow ESD Safety Procedures. Electrostatic discharges might cause damage to the equipment.

SAFETY SYMBOLS

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Elgar ReFlex Power™ Contents

Product Family: ReFlex Power™

Warranty Period: One Year

WARRANTY TERMS

AMETEK Programmable Power, Inc. (“AMETEK”), provides this written warranty covering the Product stated above, and if the Buyer discovers and notifies AMETEK in writing of any defect in material or workmanship within the applicable warranty period stated above, then AMETEK may, at its option: repair or replace the Product; or issue a credit note for the defective Product; or provide the Buyer with replacement parts for the Product.

The Buyer will, at its expense, return the defective Product or parts thereof to AMETEK in accordance with the return procedure specified below. AMETEK will, at its expense, deliver the repaired or replaced Product or parts to the Buyer. Any warranty of AMETEK will not apply if the Buyer is in default under the Purchase Order Agreement or where the Product or any part thereof:

•

is damaged by misuse, accident, negligence or failure to maintain the same as specified or required by AMETEK;

•

is damaged by modifications, alterations or attachments thereto which are not authorized by AMETEK;

•

is installed or operated contrary to the instructions of AMETEK;

•

is opened, modified or disassembled in any way without AMETEK’s consent; or

•

is used in combination with items, articles or materials not authorized by AMETEK.

The Buyer may not assert any claim that the Products are not in conformity with any warranty until the Buyer has made all payments to AMETEK provided for in the Purchase Order Agreement.

PRODUCT RETURN PROCEDURE

1. Request a Return Material Authorization (RMA) number from the repair facility (must be done in the

country in which it was purchased):

•

In the USA, contact the AMETEK Repair Department prior to the return of the product to AMETEK for repair:

Telephone: 800-733-5427, ext. 2295 or ext. 2463 (toll free North America) 858-450-0085, ext. 2295 or ext. 2463 (direct)

•

Outside the United States, contact the nearest Authorized Service Center (ASC). A full listing can be found either through your local distributor or our website, www.programmablepower.com, by clicking Support and going to the Service Centers tab.

2. When requesting an RMA, have the following information ready:

•

Model number

•

Serial number

•

Description of the problem

NOTE: Unauthorized returns will not be accepted and will be returned at the shipper’s expense. NOTE: A returned product found upon inspection by AMETEK, to be in specification is subject to an evaluation

fee and applicable freight charges.

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Elgar ReFlex Power™ Contents

CONTENTS

1.1

1.2

1.3

REMOTE PROGRAMMING OVERVIEW ................................. 15

System Level Introduction ............................................................................. 15

Features and Functions ................................................................................ 15

ReFlex Power™ IVI-COM drivers ................................................................. 15

1.4

2.1

2.2

2.3

2.4

2.5

1.3.1 IVI-COM Drivers Installation ........................................................................... 16

1.3.2 IVI-COM Drivers Help .................................................................................... 16

ReFlex Power™ FIRMWARE COMPATIBILITY ........................................... 17

1.4.1 Firmware V3 Differences ................................................................................ 17

CONTROLLER MODULE REMOTE PROGRAMMING ............ 19

Introduction ................................................................................................... 19

Features and Functions ................................................................................ 19

Power-On Conditions and Address Configuration ......................................... 20

Ethernet Configuration and Remote Programming ....................................... 20

2.4.1 Ethernet Connection Requirements................................................................ 20

2.4.2 Ethernet Setup Procedure .............................................................................. 21

2.4.3 Launching Ethernet Communication ............................................................... 22

ReFlex Power™ Ethernet Interface ............................................................... 24

2.5.1 Home Page ................................................................................................... 24

2.5.2 LOGIN Screen ............................................................................................... 25

2.5.3 IP Configuration ............................................................................................. 26

2.5.4 Security Page ................................................................................................ 29

2.5.5 Modules Page ................................................................................................ 32

M380056-03 Rev L vii

2.6

Launching Control Communication ............................................................... 33

2.6.1 Module Location Identification (Address) ........................................................ 35

2.6.2 Communication with the System .................................................................... 36

2.7

SCPI Command Operation ........................................................................... 36

2.7.1 Error/Event Queue ......................................................................................... 36

2.8

LXI™ and SCPI Conformance Information.................................................... 37

2.8.1 Parameter Definitions .................................................................................... 38

2.8.2 Numeric Data Dimensional Units .................................................................... 38

2.8.3 Conventions .................................................................................................. 38

2.8.4 Query Syntax ................................................................................................. 39

2.9

Common SCPI Commands ........................................................................... 40

2.10 EIB SCPI Commands.................................................................................... 41

2.10.1 EIB SCPI Command Summary ...................................................................... 41

2.10.2 EIB SCPI Command Reference ..................................................................... 41

2.11 SYSTEM:NETWORK SCPI Commands........................................................ 42

2.11.1 SYSTEM:NETWORK SCPI Command Summary ........................................... 42

2.11.2 SYSTEM:NETWORK SCPI Command Reference .......................................... 43

2.13 RFP Service Request.................................................................................... 44

2.13.1 Background ................................................................................................... 44

2.13.2 Theory of Operation ....................................................................................... 45

2.13.3 Event Status Register .................................................................................... 45

2.13.4 Protection Event Register .............................................................................. 45

2.13.5 Register Allocation ......................................................................................... 45

2.13.6 Execution time Operation ............................................................................... 46

2.13.7 SRQ related SCPI Commands ....................................................................... 47

2.13.8 Setting the SRQ bit in the STB, an example ................................................... 49

2.14 Trigger SCPI Commands .............................................................................. 50

2.14.1 TRIGGER SCPI Command Summary ............................................................ 50

2.14.2 TRIGGER SCPI Command Reference ........................................................... 50

2.15 MEMORY SCPI Commands ......................................................................... 51

2.15.1 MEMORY SCPI Command Summary ............................................................ 51

2.15.2 MEMORY SCPI Command Reference ........................................................... 51

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3.1

3.2

3.3

3.4

DC MODULE REMOTE PROGRAMMING ............................... 53

Introduction ................................................................................................... 53

Features and Functions ................................................................................ 53

Power-On Conditions .................................................................................... 54

Error Codes .................................................................................................. 54

3.4.1 Error/Event Queue ......................................................................................... 54

3.5

Common SCPI Commands ........................................................................... 56

3.6

CALIBRATION SCPI Commands .................................................................. 57

3.6.1 CALIBRATION SCPI Command Summary ..................................................... 57

3.6.2 CALIBRATION SCPI Command Reference .................................................... 58

3.7

MEASURE SCPI Commands ........................................................................ 59

3.7.1 MEASURE SCPI Command Summary ........................................................... 59

3.7.2 MEASURE SCPI Command Reference .......................................................... 59

3.8

OUTPUT SCPI Commands ........................................................................... 60

3.8.1 OUTPUT SCPI Command Summary .............................................................. 60

3.8.2 OUTPUT SCPI Command Reference ............................................................ 60

3.9

SOURCE SCPI Commands .......................................................................... 62

3.9.1 SOURCE SCPI Command Summary ............................................................. 62

3.9.2 SOURCE SCPI Command Reference ............................................................ 63

3.10 INPUT SCPI Commands ............................................................................... 64

3.10.1 INPUT SCPI Command Summary ................................................................. 64

3.10.2 INPUT SCPI Command Reference ................................................................ 64

3.11 STATUS SCPI Commands ........................................................................... 65

3.11.1 STATUS SCPI Command Summary .............................................................. 65

3.11.2 STATUS SCPI Command Reference ............................................................. 65

3.12 Trigger SCPI Commands and Lists ............................................................... 66

3.12.1 LIST and Trigger Command Operation........................................................... 66

3.13 Software Triggered Setpoints and Ramps .................................................... 78

3.13.1 Volt and Current Software Setpoints Command summary .............................. 78

3.13.2 Voltage and Current Software Ramps Command Summary ........................... 79

3.14 TRIGGER SCPI Commands ......................................................................... 81

3.14.1 TRIGGER SCPI Command Summary ............................................................ 81

3.14.2 Trigger SCPI Command Reference ................................................................ 81

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3.15 LIST SCPI Commands .................................................................................. 82

3.15.1 LIST SCPI Command Summary ..................................................................... 82

3.15.2 LIST SCPI Command Reference ................................................................... 82

3.16 DC SYSTEM SCPI Commands..................................................................... 85

3.16.1 DC SYSTEM SCPI Command Summary ........................................................ 85

3.16.2 SYSTEM SCPI Command Reference ............................................................ 85

3.17 Examples of Using the SCPI Commands ...................................................... 86

AC MODULE REMOTE PROGRAMMING ............................... 89

4.1

Introduction ................................................................................................... 89

4.2

Features and Functions ................................................................................ 89

4.3

Power-On Conditions .................................................................................... 90

4.4

Error Codes .................................................................................................. 91

4.4.1 SCPI Error Codes .......................................................................................... 91

4.4.2 Error/Event Queue ......................................................................................... 92

4.5

Common SCPI Commands ........................................................................... 93

4.6

CALIBRATION SCPI Commands .................................................................. 94

4.6.1 CALIBRATION SCPI Command Summary ..................................................... 94

4.6.2 CALIBRATION SCPI Command Reference .................................................... 96

4.7

MEASURE SCPI Commands ........................................................................ 99

4.7.1 MEASURE SCPI Command Summary ........................................................... 99

4.7.2 MEASURE SCPI Command Reference .......................................................... 99

4.8

OUTPUT SCPI Commands ......................................................................... 100

4.8.1 OUTPUT SCPI Command Summary ............................................................ 100

4.8.2 OUTPUT SCPI Command Reference .......................................................... 100

4.9

SOURCE SCPI Commands ........................................................................ 101

4.9.1 SOURCE SCPI Command Summary ........................................................... 101

4.9.2 SOURCE SCPI Command Reference .......................................................... 102

4.10 STATUS SCPI Commands ......................................................................... 106

4.10.1 STATUS SCPI Command Summary ............................................................ 106

4.10.2 STATUS SCPI Command Reference ........................................................... 106

4.11 SYSTEM SCPI Commands ......................................................................... 108

4.11.1 SYSTEM SCPI Command Summary ............................................................ 108

4.11.2 SYSTEM SCPI Command Reference .......................................................... 108

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4.12 EXAMPLE SCPI COMMANDs to set phase and parallel groups ................. 108

4.12.1 Examples Creating a Phase Group .............................................................. 108

4.12.2 Example creating a Parallel Group ............................................................... 109

LOAD MODULE REMOTE PROGRAMMING ........................ 111

5.1

Introduction ................................................................................................. 111

5.2

Features and Functions .............................................................................. 111

5.3

Power-On Conditions .................................................................................. 112

5.4

Error Codes ................................................................................................ 113

5.4.1 SCPI Error Codes ........................................................................................ 113

5.4.2 Error/Event Queue ....................................................................................... 113

5.5

Common SCPI Commands ......................................................................... 114

5.6

Calibration SCPI Commands ...................................................................... 115

5.6.1 CALIBRATION SCPI Command Summary ................................................... 115

5.6.2 CALIBRATION SCPI Command Reference .................................................. 116

5.7

MEASURE SCPI Commands ...................................................................... 117

5.7.1 MEASURE SCPI Commands Summary ....................................................... 117

5.7.2 MEASURE Commands Reference ............................................................... 117

5.8

INPUT SCPI Commands ............................................................................. 118

5.8.1 INPUT SCPI Command Summary ............................................................... 118

5.8.2 INPUT SCPI Command Reference .............................................................. 118

5.9

SOURCE SCPI Commands ........................................................................ 119

5.9.1 SOURCE SCPI Command Summary ........................................................... 119

5.9.2 SOURCE SCPI Command Reference .......................................................... 119

5.10 STATUS SCPI Commands ......................................................................... 120

5.10.1 STATUS SCPI Command Summary ............................................................ 120

5.10.2 STATUS SCPI Command Reference ........................................................... 120

5.11 SYSTEM SCPI Commands ......................................................................... 121

5.11.1 SYSTEM SCPI Command Summary ............................................................ 121

5.11.2 SYSTEM SCPI Command Reference .......................................................... 122

FIXED POWER DC REMOTE PROGRAMMING .................... 123

6.1

Introduction ................................................................................................. 123

6.2

Features and Functions .............................................................................. 123

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6.3

6.4

6.5

6.6

6.7

6.8

6.2.2 Power-On Conditions ................................................................................... 124

Error Codes ................................................................................................ 124

6.3.1 SCPI Error Codes ........................................................................................ 124

6.3.2 Error/Event Queue ....................................................................................... 125

Common SCPI Commands ......................................................................... 125

CALIBRATION SCPI Commands ................................................................ 126

6.5.1 CALIBRATION SCPI Command Summary ................................................... 126

6.5.2 CALIBRATION SCPI Command Reference .................................................. 127

OUTPUT SCPI Commands ......................................................................... 128

6.6.1 OUTPUT SCPI Command Summary ............................................................ 128

6.6.2 OUTPUT SCPI Command Reference .......................................................... 128

STATUS Commands .................................................................................. 129

6.7.1 STATUS SCPI Command Summary ............................................................ 129

6.7.2 STATUS SCPI Command Reference ........................................................... 129

SYSTEM Commands .................................................................................. 129

6.8.1 SYSTEM SCPI Command Summary ............................................................ 129

6.8.2 SYSTEM SCPI Command Reference .......................................................... 129

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LIST OF TABLES

Table 2-1. Remote Power-On Conditions ....................................................................................... 20

Table 2-2. SCPI Error Codes ......................................................................................................... 37

Table 2-3. Parameter Definitions .................................................................................................... 38

Table 2-4. Numeric Data Units ....................................................................................................... 38

Table 2-5. Common SCPI Commands ........................................................................................... 40

Table 2-6. Module *TST? Error Response Bits .............................................................................. 40

Table 3-1. Remote Power-on Conditions........................................................................................ 54

Table 3-2. Common SCPI Commands ........................................................................................... 56

Table 3-3. Fault and Enable Register ............................................................................................. 65

Table 3-4. SCPI for Module Trigger Routing .................................................................................. 70

Table 3-5. Input Trigger Signal Specifications ............................................................................... 71

Table 3-6. Output Trigger Specifications ....................................................................................... 72

Table 3-7. Group Pulse Function ................................................................................................... 77

Table 3-8. Software Triggered Setpoints ....................................................................................... 79

Table 3-9. Software Ramps ............................................................................................................ 80

Table 4-1. Remote Power-On Conditions ....................................................................................... 90

Table 4-2. AC Enable Register 0 .................................................................................................. 107

Table 4-3. AC Enable Register 1 .................................................................................................. 107

Table 5-1. Load Power-on Conditions .......................................................................................... 112

Table 5-2. Enable Register ........................................................................................................... 121

Table 6-1. Remote Power-on Conditions...................................................................................... 124

Table 6-2. Faults / Enable Register .............................................................................................. 129

M380056-03 Rev L xiii

LIST OF FIGURES

Figure 2-1. Ethernet Network Connection ..................................................................................... 21

Figure 2-2. Ethernet Direct Connection ......................................................................................... 22

Figure 2-3. LXI Discovery Browser Window .................................................................................. 23

Figure 2-4. ReFlex Power™ Ethernet Interface Home Page ......................................................... 24

Figure 2-5. LOGIN Page with Authorization warning ..................................................................... 25

Figure 2-6. IP CONFIGURATION Page, Default ........................................................................... 26

Figure 2-7. IP CONFIGURATION Static IP selected, but not yet applied. ..................................... 27

Figure 2-8. IP CONFIGURATION Page with Error Message for invalid IP Address ...................... 28

Figure 2-9. Security Page .............................................................................................................. 29

Figure 2-10. Security: Add New User ............................................................................................ 30

Figure 2-11. Security: Edit Existing User ....................................................................................... 31

Figure 2-12. MODULES Page Showing Installed Power Modules ................................................. 32

Figure 2-13. Net Test Window ........................................................................................................ 33

Figure 2-14. Query IP Address Example ........................................................................................ 34

Figure 2-15. Address Location and Chassis Configuration ............................................................. 35

Figure 2-16. Photo of Multi-Chassis ReFlex Power™ System ....................................................... 35

Figure 3-1. RFP Trigger Logic ........................................................................................................ 67

Figure 3-2. Fixed Mode Trigger Input ............................................................................................. 68

Figure 3-3. Module/Buss Trigger Input ........................................................................................... 69

Figure 3-4. Module/Buss Trigger Out ............................................................................................. 69

Figure 3-5. Trigger Signal Types ................................................................................................... 71

Figure 3-6. Output Trigger Timing ................................................................................................. 72

Figure 3-7. Trigger Input Responses ............................................................................................. 73

Figure 3-8. List Mode Logic ........................................................................................................... 74

Figure 3-9. Group Pulse Sequence ............................................................................................... 76

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WARNING

1.1

REMOTE PROGRAMMING OVERVIEW

SYSTEM LEVEL INTRODUCTION

This manual covers remote programming of the ReFlex Power™ system and should be used in conjunction with the ReFlex Power™ Operation Manual, M380056-01.This remote programming interface enables system operation from a computer via Ethernet, allowing full remote programming control and monitoring of all system modules, which include five basic types: the ReFlex Power™ Controller (RFPC), AC, DC, Active Load (AL) and Fixed Power modules. This programming manual is divided among sections addressing each module type, beginning with the RFPC and its set up and connection instructions for Ethernet control via SCPI commands. Set up includes installing IVI-COM driver files, connecting the control computer with the RFPC, and launching Ethernet and control communications. The remaining module types are addressed in subsequent sections, each with their applicable SCPI commands.

Avoid personal injury or damage to any part of the system, observe all electrical safety precautions described in the ReFlex Power™ operation manuals when operating a ReFlex Power™ system. When developing a program to control a ReFlex Power™ system, strictly adhere to connections instructions and avoid contact with the power module outputs.

1.2

FEATURES AND FUNCTIONS

Features and functions are as follows:

• SCPI compliant command set

• Field-upgradeable firmware for all modules via Ethernet

• System extensible up to eight Mainframes and ninety-six modules

• Configuration flexibility

1.3

REFLEX POWER™ IVI-COM DRIVERS

This programming manual was not written for users who will develop applications using the ReFlex Power™ IVI-COM (Interchangeable Virtual Instrument Component Object Model) drivers. However, it is a good supplement to help the developer understand the exact behavior of the

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ReFlex Power™ Programming Manual Remote Programming Overview

hardware in response to the individual SCPI commands produced by the drivers.

The ReFlex Power™ IVI-COM drivers allow users to develop applications in Windows to control a ReFlex Power™ system in several programming languages and environments, including C++, VB 6.0, VB.Net, C# or Lab VIEW. The drivers also include an IVI-C wrapper for use with LabWindows or the C programming language.

1.3.1 IVI-COM

There are three ReFlex Power™ IVI-COM drivers for the ReFlex Power™ system, one each for DC, AC and Loads. They are available as three separate Windows .msi installation files on the CD-ROM (M380399-01) supplied with the unit, and must be installed in the following sequence:

1. Install the IVI Foundations shared components (must be accomplished first in order to successfully install the ReFlex Power™ IVI-COM drivers). You may either click the IVI Shared Components link at the bottom of the Downloads page at http://www.programmablepower.com/go/rfp_downloads, or go directly to http://www.ivifoundation.org/shared_components/Default.aspx, and choose between the .msi file or.exe file.

2. Install a VISA (Virtual Instrument Software Architecture) layer such as NI-VISA. Again, either click the VISA RTE link also at the bottom of the Downloads page, or go directly to http://www.ni.com/support/visa/.

3. Install the applicable driver files (AC, DC, Loads) located in the RFP_IVI-COM Drivers folder on the CD-ROM.

1.3.2 IVI-COM

The three IVI-COM drivers include extensive help files and sample applications. Once installation is complete, the help files and readme.txt will be available on your Start menu.

DRIVERS INSTALLATION

DRIVERS HELP

If you are not already familiar with IVI-COM drivers, it is strongly recommended that you read the entire “Getting Started with the IVI-COM Driver” section of the help files. This should answer all questions about installation, compliance, configuration, and development with IVI-COM. It also references several other good sources for information on IVI-COM development such as the IVI Foundation, National Instruments, and Pacific MindWorks Web sites.

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Remote Programming Overview ReFlex Power™ Programming Manual

1.4

REFLEX POWER™ FIRMWARE COMPATIBILITY

With the release of firmware version 3.000.000 and higher, the controller firmware revision and the firmware in the power and load modules must be at the same major revision level. Thus, it is not possible to mix revision

2.000.000 and revision 3.000.000 assets. When powering up a system with

mixed revision assets installed, the red Fault LED will blink on a version 3 controller, if a version 2 module is detected. If a version 3 Module detects a version 2 controller, the Module’s red Fault LED will blink indicating the firmware miss-match. The *TST? response will also have an error bit set indicating miss-matched firmware.

RFP version 2 Modules can be upgraded to version 3, and version 3 modules can be downgraded to version 2.

The Order numbers for version 2 and version 3 Modules are different, contact Sales for further information.

1.4.1 F

Programmatically firmware version 3 is a superset of the functionality in V2. There are some differences because of new features that have been added, and some because of enhancements.

In general; non-setting related query commands now execute much faster, by as much as a second in some cases. As an example meas:volt? the response time is in the order of 10-15msec. The number of digits after the decimal point in a measure query response is now proportional to the module ratings, i.e. more digits on a 16 volt module and less on a 450 volt module.

AC Group operation can now be paced by the execution speed of the group rather than using fixed delays. See AC Module Group operation examples for details on command usage. An AC power measurement subsystem, and a transient upset event generator has been added. Control of CC Mode (as RMS current) has been added.

IRMWARE V3 DIFFERENCES

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ReFlex Power™ Programming Manual Remote Programming Overview

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18 M380056-03 Rev M

2.1

CONTROLLER MODULE REMOTE PROGRAMMING

INTRODUCTION

This section covers the set up and remote programming of the ReFlex Power™ system Controller (RFPC). All SCPI commands for the ReFlex Power™ system will pass through the RFPC, which validates the command syntax and confirms that the target module(s) exist, before sending the command through. While most commands are intended for specific modules or module groups, some commands will affect the entire system, and others will return information from the RFPC.

The syntax of all SCPI commands implemented by the ReFlex Power™ system and documented in this manual, are either SCPI confirmed in the SCPI 1999.0 Specification, Volume 2: Command Reference, or they are customized commands not part of the SCPI definition but conform to SCPI syntax.

The design of the RFP System is based on a loosely coupled, multi-user, multi-processor, pre-emptive multitasking, and multi-threaded control system, composed of semi-autonomous modules. This allows multiple users to control various parts of the RFP system independently from each other. User coordination is required.

2.2

FEATURES AND FUNCTIONS

EATURES

EADBACK FUNCTIONS

M380056-03 Rev M 19

• SCPI compliant command set

• Field-upgradeable firmware via Ethernet

• Support for 96 modules

• Status and Accumulated Status registers

• Programming error codes

• Fault codes

• Manufacturer, power supply model, serial number, and firmware

version identification

ReFlex Power™ Programming Manual Controller Module Remote Programming

configuration.

2.3

POWER-ON CONDITIONS AND ADDRESS CONFIGURATION

Table 2-1 presents remote power-on conditions for the ReFlex Power™ Controller (RFPC).

Table 2-1. Remote Power-On Conditions

Condition Default

Off, can be enabled by command and IVI Driver

2.4

Service Request Capability

ETHERNET CONFIGURATION AND REMOTE PROGRAMMING

Operating the ReFlex Power™ system via the Controller module requires a computer with an Ethernet LAN connection. The Controller communication interface conforms to IEEE 802.3, commonly known as Ethernet 10 Base-T and 100 Base-T, and is Instrumentation) class C compliant.

™ (LAN eXtensions for

After installing the IVI-COM drivers (Section 1.3.1), begin the Ethernet connection and setup for communication.

2.4.1 E

For Ethernet connection between the ReFlex Power™ Controller module and the control computer, you will need:

•

THERNET CONNECTION REQUIREMENTS

EnetTest.exe file located in the RFP Download folder on the ReFlex Power™ CD-ROM (P/N M380399-01) supplied with your product

LXI_Browser_setup.exe file (if you don’t know the IP address of the Controller module), which is also located in the RFP Download folder

RJ45-type connectors with Category 5 or 5e (Cat 5) cables:

o For a network connection, via local router, switch or hub, to

isolate the local nodes and segments from the rest of the network, use two straight-through cables.

o For a direct connection, if the control computer’s Ethernet

interface does not support Auto-MDIX, use a crossover cable to connect the control computer directly to the Controller module via their respective Net/LAN connectors.

Jumper plug to enable voltage output of each module as follows:

o For the ReFlex Power™ Controller module, you will need

either Loop-back Connector Assembly 5380509-01 or Cable Assembly 5380441-01 or –03.

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o For all other modules (power supplies and loads), you will

need either Loop-back Connector Assembly 5380508-01 or Cable Assembly 5380443-01 or-03.

2.4.2 E

The ReFlex Power™ Quick Reference Guide (M380056-04) is a condensed version of this procedure for Ethernet setup.

2. Disable the Remote Inhibit of the Controller module, by connecting their

3. Enable the voltage output of all other power supply and/or load

4. Create either a Network or direct connection between the control

THERNET SETUP PROCEDURE

With all power disabled, assemble your ReFlex Power™ system and main power connections according to the ReFlex Power™ Operation Manual, M380056-01.

discrete signals with a jumper plug that connects Pins 1 and 9 on the front panel interface connector, using either Loop-back Connector Assembly 5380509-01 or Cable Assembly 5380441-01 or –03.

modules by connecting their discrete signals with a jumper plug that connects Pins 1 and 6 on the front panel interface connector of each module, using either Loop-back Connector Assembly 5380508-01 or Cable Assembly 5380443-01 or-03.

computer and the ReFlex Power™ system, using Category 5 or 5e (Cat

5) cables with RJ45-type connectors, as follows:

Ethernet Network Connection

A Network connection via local router, or switch isolates the local nodes and segments from the rest of the Network, a hub does not. Use two straight through cables to connect the control computer and the ReFlex Power™ Controller from their respective Net/LAN connectors, to a local router, switch or hub (Figure 2-1). ReFlex Power™ Controller will DHCP if available from the network.

Figure 2-1. Ethernet Network Connection

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Direct Connection

If the control computer’s Ethernet interface does not support AutoMDIX, use a crossover cable to connect the control computer directly to the Controller module between their respective Net/LAN connectors (Figure 2-2). The factory default ReFlex Power™ Controller settings will select an AutoIP address, it will be in the 169.254.1-254.NNN range, if DHCP is not available, check the Control computer for proper settings.

Figure 2-2. Ethernet Direct Connection

5. Press the POWER switch on the Controller’s front panel to power on the system. Allow time for the system to boot.

6. Launch the Ethernet connection (Section 2.4.3), or go straight to the Net Test window to begin control communication (Section 2.6).

2.4.3 L

AUNCHING ETHERNET COMMUNICATION

Once the Ethernet connection is made and the system is powered on, the Controller module’s LEDs, LAN and Con, are lit, and Net is lit during network traffic.

When there is no Network traffic, the Net LED is not lit. If the Con LED is not lit, the RFPC is not connected to a functioning

network. If the LAN LED is not lit, the RFPC does not have an active TCP/IP

address, it has detected that it cannot retrieve an IP address via DHCP, or if configured for a fixed IP address, the requested IP address is already in use, or the RFPC can’t initialize the Ethernet system for some reason.

Execute the LXI™_Browser_setup file located in the ReFlex Power executables folder on the ReFlex Power™ CD-ROM, M380399-01. This will bring up the LXI™ Discovery Browser interface (Figure 2-3), which will find and display the IP address of the ReFlex Power™ Controller module.

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Figure 2-3. LXI Discovery Browser Window

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2.5

REFLEX POWER™ ETHERNET INTERFACE

To bring up the ReFlex Power™ Ethernet Interface, in the LXI™ Discovery Browser, double click the IP address of the Controller module. This brings up that Controller module’s HOME page (Figure 2-4).

2.5.1 H

The ReFlex Power™ Ethernet interface HOME page displays the current information about the specific Controller module that you are connected to.

OME PAGE

Figure 2-4. ReFlex Power™ Ethernet Interface Home Page

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If you are not sure you are connected to the correct Controller module, e.g., multiple Controller modules were listed in the LXI™ Discovery Browser, click the SET button at the bottom of the HOME page (when clicked, the SET button becomes the CLEAR button). SET causes that Controller module’s LAN LED to blink for identification purposes. Click the CLEAR button to stop the blinking (CLEAR button changes back to SET).

The HOME page has links (tabs) to three other pages in the ReFlex Power™ Interface: IP CONFIGURATION, SECURITY and MODULES. Also, in the upper right area of the interface is the LOGIN button.

2.5.2 LOGIN

SCREEN

Click the LOGIN button to log in; clicking the IP CONFIGURATION tab also brings up the LOGIN page, but with an error message prompting you to log in (Figure 2-5).

Figure 2-5. LOGIN Page with Authorization warning

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With authorized log-in (default parameters: User ID = admin; Password = password), click the IP CONFIGURATION tab (Figure 2-6) where you can customize the Host Name and Description, and/or select Use a Static IP Address (Figure 2-7) to change IP Address, Subnet Mask, Gateway, DNS Server and Listening Port. Please ask your IT Administrator for support.

2.5.3 IP

CONFIGURATION

The default IP Address configuration is DHCP-enabled and Auto IP-enabled. If a DHCP server is not found, an address in the range of 169.254.[1 thru 254].[0 thru 255] will be selected. If there is no DHCP server on your local network, your PC must also be configured for Auto-IP for the RFP system to be discovered. For only DHCP, select “Obtain an IP Address Automatically” and deselect “Auto IP Enabled”). Click the APPLY button to set your inputs.

Figure 2-6. IP CONFIGURATION Page, Default

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Figure 2-7. IP CONFIGURATION Static IP selected, but not yet applied.

When an IP Address is in error, it needs to be “checked”, an error message is displayed, and the page refreshes back to the previous settings. (Figure 2-8) An invalid IP address can be the result of invalid values entered in the address fields, or the requested IP address is already in use. The chosen IP address should be ‘PINGED’ to check that it is free and available for use before trying to set the RFPC to that address.

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Figure 2-8. IP CONFIGURATION Page with Error Message for invalid IP Address

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2.5.4 S

ECURITY PAGE

Click the SECURITY tab to open the Security page, which displays the user names and their permissions (Figure 2-9).

Figure 2-9. Security Page

Click the ADD button to add a new user and assign Password and Permissions (Figure 2-10). To remove an existing user, select that user’s name and click the REMOVE button. That row is deleted from the main Security page. To change anything for an existing user, select that user’s name and click the EDIT button, which takes you to the EDIT EXISTING USER page (Figure 2-11).

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Figure 2-10. Security: Add New User

In the ADD NEW USER page, click the cursor in each field and type the inputs, select the Permission level from the drop-down menu and click the SUBMIT button to set the new user settings. To clear the fields and start over, click the RESET button. Clicking the CANCEL button reverts back to the previous Security page without changes taking effect.

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Figure 2-11. Security: Edit Existing User

Make the desired changes to the applicable fields and click the SUBMIT button to set the new user settings. To clear the fields and start over, click the RESET button. Clicking the CANCEL button reverts back to the previous Security page without changes taking effect.

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2.5.5 M

ODULES PAGE

Click the MODULES tab to reveal the “address” or Slot Location (SL), the model number, the serial number and the firmware revision of the modules that are installed in the system. (Figure 2-12 shows a system with the ReFlex Power™ Controller module in Mainframe slot 1, and three AC power modules, in slots 5, 8, and 12).

Figure 2-12. MODULES Page Showing Installed Power Modules

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2.6

LAUNCHING CONTROL COMMUNICATION

When the Ethernet interface is up and running, then start the communication program as follows:

1. Copy the EnetTest.exe file supplied on the ReFlex Power™ CD-ROM into any convenient directory on the control computer.

2. In its new location double-click the EnetTest.exe file.

This brings up the Elgar Net Test window (Figure 2-13) where the Host IP and Port addresses must be set before control communication can begin.

Figure 2-13. Net Test Window

In the Host and Port fields of the Net Test window:

3. Enter the Host IP address acquired by the LXI™ Discovery Browser (Section

2.4.3), or the static IP address that you entered in the Ethernet Configuration page (AutoIP will be in the range of 169.254.[1 thru 254].[0 thru 255].

4. Set the Port address to: 2340 (required)

Click the Connect button.

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The field to the left of the Clear button, now appears white (not grayed out), to allow SCPI command input.

It may be necessary to change the IP address, due to address conflicts and other system requirements. (SYSTem:NETwork:IP <ipaddress>

Figure 2-14. Query IP Address Example

Figure 2-14 displays an example of querying and changing the IP address to static. Note that the response to the IP address query after the address is changed, includes the current IP address followed by the new IP address. The following are commands associated with setting and querying the IP address:

SYSTem:NETwork:IP? Query to get the IP address from the

ReFlex Power™ system.

SYSTem:NETwork:IP <ipaddress> Sets the ReFlex Power™ system IP

address following the format: NNN.NNN.NNN.NNN

The ReFlex Power™ System will reconfigure its TCP/IP address to the requested address, after validating that the requested address is valid and available for use. When the IP address is set, the IP address configuration is automatically set to static.

The new IP address is reconfigured a few seconds after being validated, all current TCP/IP connections will be closed, and new connections at the new address will have to be created to communicate with the ReFlex Power™ System.

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Test the communication interface by issuing the *IDN? and/or *IDN<n>? commands, which will return, respectively, the Controller’s or specific module’s model and firmware versions without affecting output.

2.6.1 M

ODULE LOCATION IDENTIFICATION (ADDRESS

)

To control a specific module, use its address identified by its location in the ReFlex Power™ Mainframe. Each Mainframe houses 12 address locations, one for each single-width slot; the first slot on the left is numbered 1; the last on the right is numbered 12. Additional mainframes continue the count; i.e., the second Mainframe addresses are 13 through 24 from left to right (Figure 2-15). The address for a double or triple-width module is always the rightmost slot position that it occupies. Hence, a triple-width module covering slots 17, 18, and 19 is identified by address 19.

A ReFlex Power™ system is extendable up to eight (8) chassis, with the first mainframe chassis (primary) configured as output only; any intervening chassis would have both input and output inter-chassis connections, and the last would be configured as input only. Refer to the ReFlex Power™ Operation Manual (M380056-01) for additional information on multiple chassis interconnection requirements.

Figure 2-15. Address Location and Chassis Configuration

Figure 2-16. Photo of Multi-Chassis ReFlex Power™ System

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2.7

2.6.2 C

Click within the Net Test window (Figure 2-14) to begin control communications by inputting SCPI commands per the proper syntax and conventions described herein.

SCPI COMMAND OPERATION

The SCPI command sets provide programming, query, and status commands that facilitate remote control of the ReFlex Power™ system.

The system supports the SCPI 1999.0 status reporting data structures. These structures are comprised of status registers and status register enable mask pairs. The following sections describe these pairs.

2.7.1 E

The Error/Event Queue, defined by SCPI holds up to ten error events. Issue the SYSTem:ERRor? query to read the queue in a First In/First Out (FIFO) manner. The read operation removes the entry from the queue. Issue the *CLS command to clear all entries from the queue.

The following SCPI-defined error codes are in the range of [-32768, 32767]. SCPI reserves the negative error codes and 0, while error codes greater than 0 are device-specific errors.

OMMUNICATION WITH THE SYSTEM

RROR/EVENT QUEUE

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Error Code

Description

No Error

Invalid

Index

When a command is issued to an empty slot

Wrong Module Type

Feature not supported

Feature Not Implemented

System too Busy

TrigChannel not available

Requested trigger channel is already used in the system

Wrong Group

Config/Oper

Module inhibited asserted

List Seq Buffer Full

Syntax error

Execution error

A command could not be executed due to the current condition of the module.

Data out of range

"Name not found/invalid

Name already exists

System Error

Queue overflow

Table 2-2. SCPI Error Codes

2 11 12 14

206 251 252 253

-102

-200

-222

The error queue is empty.

Command is not correct for the specific module type. Specific command may not get implemented for the module type Command will be implemented in the future System is busy executing a previous command, the command causing this error will

not be executed.

Group creation failed for stated reason. Module Inhibit is asserted in the RFPC for the ReFlex Power™ system. The LIST being created, is too long. An unrecognized command or data type was encountered.

Parameter exceeded range of valid values.

2.8

-292

-293

-331

-350

LXI™ AND SCPI CONFORMANCE INFORMATION

Requested File name either not found or the name was not valid. Requested name already exists. A valid command could not be executed due to some internal/earlier error. The error queue can contain up to ten entries. If more than ten error/event conditions

are logged before a SYSTem:ERRor? Query, an overflow will occur; the last queue entry will be overwritten with error -350. When the queue overflows, the least recent error/events remain in the queue and the most recent error/events are discarded.

The ReFlex Power™ Controller Ethernet is IEEE 802.3 and LXI™ (LAN eXtensions for Instrumentation) class C compliant.

The syntax of all SCPI commands implemented by the ReFlex Power™ system and documented in this manual, are either SCPI commands confirmed in the SCPI

1999.0 Specification, Volume 2: Command Reference, or they are customized commands, not part of the SCPI definition, but do conform to SCPI syntax.

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2.8.1 P

Table 2-3. Parameter Definitions

Type Valid Arguments

<bool> 1 or “ON”; 0 or “OFF” <NRi> <0+NRi> Zero and positive integer numeric values.

<-NRi> Negative integer numeric values. <NRf> <+NRf> Positive non-zero floating point numeric values.

<0+NRf> Zero and positive floating point numeric values. <-NRf> Negative floating point numeric values. <string> Text characters enclosed by double quotes.

<Arg> Text characters with no quotes. <n> The address number of the module in the RFP chassis system.

The data format <NRi> is defined in IEEE-488.2 for integers. Zero, positive and negative integer numeric values are valid data.

The data format <NRf> is defined in IEEE-488.2 for flexible Numeric Representation. Zero, positive and negative floating point numeric values are some examples of valid data.

ARAMETER DEFINITIONS

Note: Channel number 0 is invalid for any auxiliary device, because the ReFlex Power™ implementations of the SCPI language reserves channel 0 for the “global” address to address all channels.

2.8.2 N

UMERIC DATA DIMENSIONAL UNITS

The Ethernet interface accepts these dimensional units for numeric values of parameters as listed below. For example, the command SOUR:VOLT 115 programs 115.0 volts when setting the output voltage of the supply.

Table 2-4. Numeric Data Units

Parameter Dimensional Unit

Voltage Volt Current Ampere Time Seconds

Frequency Hertz Phase Angle Degrees

2.8.3 C

ONVENTIONS

Optional keywords and parameters are enclosed by left and right square brackets: [ ]. The parameter <n>, in a command, indicates the address number of the module being commanded.

• Discrete module numbers are separated by commas: <n,n,n>.

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• If nothing is entered, the default global command is automatically selected, if the global context can be logically correct.

Required input parameters are enclosed by left and right less-than / greater-than brackets: < > in the format indicated. For example:

• <bool> 0 or 1, for Off or On, respectively.

• <string> alphanumeric string enclosed by double quotes.

• <NRf> defined in IEEE 488.2 for flexible Numeric

Representation, e.g., zero, positive and negative floating point numeric values.

• <NRi> defined in IEEE 488.2 for integers, e.g., zero, positive and negative integer numeric values.

• <t> indicates Trigger channel input/output connections (applies only to Controller and programmable DC modules; see the Trigger command section of this manual for further details on the <t> parameter).

The shorthand version of a command is indicated by capital letters (minimum required components of a command). For example, SOURce <n>:VOLTage <NRf>, can be written as:

• SOURCE<n>:VOLTAGE 120 //set output voltage to 120.0V

• SOUR<n>;VOLTAGE 120.0 //set output voltage to 120.0V

• SOUR<n>:VOLT 120 //set output voltage to 120.0V

2.8.4 Q

The query syntax is identical to the command syntax, but with a question mark (?) replacing the command’s argument. For example, to query the programmed output voltage on a Module at address 1, send the command, SOUR1:VOLT?. A Module number is required. A value such as 65.00 will be returned when read.

The ReFlex Power™ Controller requires all commands received to be terminated with any combination of CR (0x0D), and or LF (0x0A). All responses are terminated by default with CR/LF (0x0D 0x0A). Response termination can be changed by using SYST:NET:TERM <NRi>. Each new user connection is always initializes to CR/LF.

UERY SYNTAX

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Command

Description

Response

Definition for all Modules

2.9

COMMON SCPI COMMANDS

Table 2-5 shows commands that are common to all SCPI instruments.

Table 2-5. Common SCPI Commands

Clears all status reporting data structures including the Status Byte, the Standard

*CLS

*IDN<n>?

*OPC<n>? *STB?

*SRE? *SRE <NRi> *ESR? *ESE? *ESE <NRi>

*RST<n>

*TST<n> *TST<n>? *TST?

Table 2-6. Module *TST? Error Response Bits Note: The *TST command can’t be interrupted.

Event Status Register, the Protection Event Status Register, and the Error Queue. Enable registers are not cleared by this command. Returns the device identification as an ASCII string. Response: <Manufacturer>,<model>,<serial number>,<firmware version> Example: ELGAR,RFP-C1LAN-000-0000,1234A56789,3.000.001 Operation Complete Query: Returns value of 1, when all pending operations are complete. Returns value of 0, when long, or multipart commands are not complete. Query User’s STatus Byte Query the user’s enable bits in the Service Request Enable register Set the enable bits in the Service Request Enable register Query the user’s standard Event Status Register, if bit 0 is set, a *RST is required. Query the user’s Enable Standard Event status register Set the user’s enable bits in the Enable Standard Event status register. Resets the specific slot module to its Power ON state. Clears status reporting data structures, including the Protection Condition Status Registers. Enable registers are not cleared by this command. *RST will reset all modules. Initiate self test NOTE: Module must be OUTP:STATE 0 and not a group member. Returns the results from the last self test the module performed. Returns a decimal value, convert to Hex because more than one bit can be set. See Table 2-6. Returns the results from all the modules in the system or’ed together. See *TST<n>?

0x00 No Selftest Errors 0x01 The Firmware Version of the Controller and Module are not compatible 0x02 Flash image, tag mismatch 0x04 Flash image, version mismatch 0x08 Isolation relay closed 0x10 Sense relay closed 0x20 Current measurement error. For DC, measured current not zero. 0x40 Voltage measurement error 0x80 Output turn on error 0x100 RAM Configuration error 0x200 Module Enable is false, selftest can’t be executed 0x400 Module On, Active selftest can’t be executed 0x800 OVP test failed 0x1000 UVP test failed 0x2000 Housekeeping supply fault 0x4000 Overtemp fault 0x8000 Ground fault 0x10000 Tried to run selftest on a Group Member 0x20000 OCP test failed 0x40000 Configuration or Calibration file error 0x1000000 Failed at 0% Volt setting, only with other bits set

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Response

Definition for all Modules

Command

Description

0x2000000 Failed at 10% Volt setting, only with other bits set 0x4000000 Failed at 90% Volt setting, only with other bits set

0x20000000 0x40000000 Selftest in progress. Only valid via *TST?, non applicable at module level.

0x80000000 Module Clear in progress. Only valid via *TST?, non applicable at module level.

The Controller is unable to detect with any other Modules (Chassis faults / Slot Power?)

2.10

EIB SCPI COMMANDS

The EIB (Elgar Interface Bus) subsystem is a proprietary set of customized commands, conforming to SCPI syntax but not defined by the SCPI Standard.

2.10.1 EIB

EIB

:CONFigure

:DNUMber? :INFormation :ALL? :VERBose? :LADDress?

2.10.2 EIB

EIB :CONFigure

:DNUMber? :INFormation :ALL?

:VERBose?

:LADDress?

SCPI C

OMMAND SUMMARY

OMMAND REFERENCE

EIB subsystem. CONFigure sub-commands Returns the number of devices in the system including the

controller.

Returns the model information string of the devices in the system. Returns the model information string of the devices in the system with the corresponding logical Address.

Returns the logical Address of the devices in the system; the first address is that of the controller.

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2.11

SYSTEM:NETWORK SCPI COMMANDS

2.11.1 SYSTEM:NETWORK

SYSTem :ERRor? :VERsion? :FAULt? :MODSRQ?

:NETwork

:AUTOIP <bool> :AUTOIP? :DESC <string> :DESC? :DHCPMODE <bool> :DHCPMODE? :DNS <IP Address> :DNS? :GATE <IP Address> :GATE? :HOST <string> :HOST? :IP <IP Address> :IP? :LANLED BLINKON :LANLED BLINKOFF :LANLED? :MAC? :MASK <IP Address> :MASK? :PING <IP address>? :PORT <NRi> :PORT? :TERM <NRi> :TERM?

SCPI C

OMMAND SUMMARY

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Command

Description

rack is being addressed). BLINKOFF stops LAN LED blinking.

2.11.2 SYSTEM:NETWORK

SYSTem

:ERRor?

:VERsion?

:FAULt? 3

:MODSRQ?

:NETwork :AUTOIP <bool>1 :AUTOIP? :DESC <string> :DESC?

:DHCPMODE <bool> :DHCPMODE?

:DNS <IP address>

:DNS?

:GATE <IP address>

:GATE? :HOST <string> :HOST?

:IP <IP address>

:IP?

:LANLED <BLINKON | BLINKOFF>

:LANLED?

2,3

SCPI C

System subsystem. Queries Error Queue for next error/event entry (first in, first out). Entries contain an error number and descriptive text. A 0 return value indicates no error occurred; negative numbers are reserved by SCPI. The maximum string length returned is 255 characters. The queue holds up to 10 error/entries. All entries are cleared (per user) by the Returns the SCPI version number for the instrument. The response is in the format YYYY.V where the Y’s represent the year and V represents the approved version number for that year (e.g., 1999.0) Returns a Hex number. If a module has an active Hardware fault condition, the corresponding bit will be a ‘1’, else ‘0’. Returns a Hex number. If a module has an active SRQ event, the corresponding bit will be a ‘1’, else ‘0’. Network Subsystem Sets the network Auto IP mode. 0 = disable AutoIP; 1 = enable AutoIP 0 = AutoIP disabled; 1 = AutoIP enabled. Set the network Description, a 64 character alphanumeric string surrounded by quotes Returns the network Description. 1 = enable, 0 = disable DHCP mode. Reboot to take effect. Returns Y if DHCP Mode is enabled. Returns N if DHCP mode is disabled. Set the IP address of the Domain Name System for the device (IP address is in the format NNN.NNN.NNN.NNN where “NNN” = 0 through 255, inclusive. Returns the network DNS address for the device. Sets the network gateway IP address for the device. The IP address format is NNN.NNN.NNN.NNN where “NNN” = 0 through 255, inclusive. Returns the network gateway IP address for the device. Set the network Host Name, a 15-character (maximum) alphanumeric quoted “string”. Returns the network Host Name Configures the RFPC to STATIC IP mode, delays several seconds, closes all network connections, then uses the new IP address. The IP address format is NNN.NNN.NNN.NNN, where “NNN” = 0 through 255, inclusive. Returns two IP addresses: the first is the IP address presently in use by the power supply; the second is the IP address to be used when the system re-configures. BLINKON blinks LAN LED. (Used to identify which RFPC in a

Returns state of the LAN LED: 0 – Off; 1 – On, 2 - blinking.

OMMAND REFERENCE

*CLS

command.

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Command

Description

:MAC?

:MASK <IP address>

:MASK? :PING <IP address>?

:PORT <NRi>

:PORT?

:TERM <NRi>

:TERM?

When an AutoIP address is acquired, it’s range will be 169.254.1-254.NNN

To receive SRQ events at a host computer, a “TCPIP0::10.11.3.210::inst0::INSTR”

Returns the network MAC address. xx-xx-xx-xx-xx-xx (Hexadecimal digit pairs) Set the network Subnet Mask for the device. The mask is in the format NNN.NNN.NNN.NNN where “NNN” = 0 through 255, inclusive. Returns the network Subnet Mask for the device. Pings the IP address and returns the statistics Set the network TCP/IP socket listening port. The Port address is not changeable. Returns the network TCP/IP socket listening port address, which is 2340. Set the return string terminator to be sent by the device. The valid range is 1-4. The TERM value is user specific, for each individual connection lifetime. Connection Default is 3. Values indicate the following terminator(s): 1 = 0x0D only (CR), 2 = 0x0A only (LF), 3 = 0x0D 0x0A (CR LF), 4 = 0x0A 0x0D (LF CR) Returns the string terminator value used by the device.

connection must be instantiated by the IVI Driver, and the user application must call the proper initialization and setup routines.

The Hex formatted number is 96 bits in length, which has a one-to-one correspondence for

each possible module in the system. The bits are numbered 96 down to 1.

2.13

RFP SERVICE REQUEST

2.13.1

BACKGROUND

The idea of Service ReQuest (SRQ) generation over Ethernet in RFP is to allow the system to selectively and asynchronously alert each user to specific events that have occurred in the system depending on which modules are SRQ enabled. Because SRQ’s are asynchronous, the instrument does not require to be polled, which lowers overhead and bandwidth requirements.

The RFP system provides a command and control interface via Ethernet. Because the client side implementation of SRQ for Ethernet is implemented using SUN RPC™ and VXI-11™ protocol, the RFPC implements a VXI-11 Server. A socket-based connection can set an SRQ event into the STatus Byte register, (STB), but since there is no driver notification in this mode, it would only be detected in a polling mode.

Note: One Ethernet connection, whether socket or instrument, will never ‘see’ another connection’s SRQ information or status. See below for details.

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2.13.2

The RFPC implements the RPC port 111-portmapper function for both TCP and UDP. This allows the client to acquire the port # for the VXI-11 Server. The VXI-11 Server connects to the client and translates the VXI-11 requests into a form that can be sent to RFP modules, and receives the responses from the RFP modules and formats them back into VXI-11 responses. The VXI-11 server can support 16 concurrent client connections.

The VXI-11 server receives SRQ events from the RFPC (if enabled) and sends (if SRQ enabled) a device interrupt request to the client.

The RFPC implements a multi-client SRQ mechanism based on the software model of the SCPI Status Register structure. The RFPC maintains a SCPI status and SRQ structure that is separate and unique per connection/user. The association of a module level SRQ and the user occurs when the user has programmed a module’s Protection EVent enable register (PEV) to a non-zero value, and disconnected when the module’s PEV is set to zero, or the user closes the Ethernet session.

There are two classes of SRQ’s, the first class is events generated from the standard Event Status Register, (ESR) and the second class is events generated from the module Protection Event register. (PE) The summary of all these events is located in the STB.

THEORY OF OPERATION

2.13.3

The standard Event Status Register (ESR) handles events that are generally caused by user commands. These include errors generated by command or execution errors. There is a corresponding Enable Standard Event register (ESE) that allows events to be enabled or masked off.

2.13.4

The Protection Event register (PE) handles all the events that are hardware related. There is a corresponding Protection EVent enable register (PEV) that allows these hardware events to be enabled or masked off.

2.13.5

The module level PE and PEV registers are allocated as one set, per module. There is also one set of PE/PEV registers that serve as summary accumulators. Also one set of STB, SRE, ESR, ESE registers, and an ErrorQueue, that are allocated on a per user basis.

EVENT STATUS REGISTER

PROTECTION EVENT REGISTER

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A unique set of these registers are allocated per each TCP/IP Socket connection or VXI-11 channel connection, and released when the connection is closed.

2.13.6

Group creation will clear both the PE and PEV registers at the module level. If a PE, ESR, and STB event is active and the corresponding event in the

ESE, PEV and SRE is enabled, a SRQ will be generated. If several simultaneous events occur, the first one will set the SRQ, to clear the SRQ, all succeeding events will also need to be cleared.

To clear an SRQ, there are several commands that have been implemented to make the job easier. The standard one of *STB?, is to see which class of interrupt has occurred, an Event Status Register, Error Queue, and or a Module Protection Event. The ESR is queried by the *ESR? command. Which module caused a SRQ event can be determined by a SYST:MODSRQ?. This command returns a 96 bit hex number (96 down to 1, Left to Right) on a user basis, that has a ‘1’ bit set corresponding to each module number that the user has programmed non-zero PEV register value that has caused the SRQ to be asserted.

To clear a PE, use the SYST:MODSRQ? to determine which module(s) requires service, read their PE register. Then read the summaries PE register, if there are no further SRQ’s pending, the SRQ bit in the STB register should clear. If not, check for other events that are pending.

The linkage between a client and the RFP SRQ mechanism is made when a module’s STATus<n>:PROTection:ENABle<Ni> bits are set non-zero. The *SRE and client side driver must also enable SRQ for one to occur. The summary set of PE/PEV registers can be used as a global SRQ enable/disable for module based events on a per user basis.

EXECUTION TIME OPERATION

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2.13.7

SRQ

SYST :MODSRQ?

1,2,3

:FAULt? 1

* STB? SRE? SRE <Ni> ESR? ESE? ESE <Ni>

STATus<n>:PROTection :CONDition? :EVENt? :ENABle? :ENABle<Ni>

STATus:PROTection :EVENt? :ENABle? :ENABle<Ni>

SCPI C

OMMANDS

System level command Returns a Hex number. If a module has an active SRQ event, the corresponding

bit will be a ‘1’, else ‘0’ Returns a Hex number. If a module has an active Hardware fault condition, the corresponding bit will be a ‘1’, else ‘0’.

Star level commands Query User’s STatus Byte Query the user’s enable bits in the Service Request Enable register Set the enable bits in the Service Request Enable register Query the user’s Standard Event status Register, if bit 0 set, a *RST is required. Query the user’s Enable Standard Event status register Set the user’s enable bits in the Enable Standard Event status register.

Module Status subsystem Returns a real-time copy of the module protection event bits Returns a summation of the module protection event bits, cleared on read. Query the module protection event enable bits Set the module protection event enable bits

Summary Status subsystem A summation of the users module protection event bits, cleared on read. Query the users protection event enable bits Set the users protection event enable bits

The Hex formatted number is 96 bits in length, which is a one-to-one correspondence for every

possible module in the system. The bits are numbered 96 down to 1. As an example: #H000000000000000000080006 shows Modules 24, 3 and 2 have posted an event.

To receive SRQ events at a host computer, a “TCPIP0::<TCP/IP Address>::inst0::INSTR” connection

must be instantiated by the IVI Driver, and the user application must send the proper commands to the RFP system, and call the proper initialization and setup routines in the host computer and IVI Driver.

The SRQ event bits are linked in exactly the same way as SRQ generation. One host connection

can’t ‘see’ another connection’s SRQ’s. The host linkage is created when a client sets a module’s PEV register to a non-zero value. The linkage is broken when the PEV is set to zero.

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Error Queue not Empty

7 6 5 4 3 2 1 0

&&&

7 6 5 4 3 2 1 0

&&&&&

STAT<n>:PROT:EVENt ?

STAT<n>:PROT:ENAB <Ni>

STAT<n>:PROT:ENAB?

*STB?

*SRE <

NRi>

*SRE?

*ESE <Ni>

*ESE ?

*ESR?

SRQ

Error

Queue

6 Service ReQuested

5 Standard Event Status register

4,2 Error Event Queue / Message Available

7 Modules Power On Reset

5 Command Syntax error

4 Command execution error

3 Other errors

0 *RST required after a cold start

1,2,6 Reserved

<n> = Optional module #

<NRi> = Interger #

& = 'and' function

KEY:

5 4 3 2 1 0

Ver 0.10

Protection Event Register

Enable Standard Event register

standard Event Status Register

yte

SYST:MODSRQ?

a '1' bit set for each module

STAT<n>:PROT:COND?

of the PROT:EVENT Register

2 Summary bit

0 Constant Voltage Operation

4 Over Temperature Fault

0 will set this bit.

Note 2: Short duration mode changes of < 50 mSec. may

detected. For the Load Module: Bit 0 is for

SYST:FAUL?

7 Over Current Fault 6 Volt|Curr Mode Fault 5 Module Disabled

Protection Event Enable Register

3 Output Voltage Fault 1 Constant Current Operation

atus

Note 1: Any changes in bits 7-3, 1-

Sticky bits, cleared on Query

not be Resistance mode operation.

Returns a non-sticky version

7 ----

Service Request Enable / STatus Byte register bits

1 Protection Event Flag 0,3,6,7 Reserved

7 6 5 4 3 2 1 0

Returns a 96 bit hexnumber, with

requesting an SRQ (96..1)

Returns a 96 bit hex number, with a '1' bit set for each module with non-zero fault register (96..1)

='s 1, if any bit is set

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2.13.8

The following example shows the STB is initially zero. The SRE is enabled to set SRQ if Message AVailable / Error Event Queue is asserted. A ‘bad command’ is sent to the RFP system, which causes the Error Queue to have an entry, which sets status bits in the STB. The setting of the bits in the STB that match bits set in the SRE, will then cause bit 6 (SRQ) to be set, which will generate the SRQ response if enabled by the host IVI-driver. To clear an SRQ, the cause of the SRQ must be cleared. In the example below, reading the Error Queue will cause the Message AVailable / Error Event Queue bits to clear, if the Error Queue is empty, and if there are no other matching bits between the STB and SRE or STB and PE registers, the STB SRQ bit will clear, signaling the end of the SRQ event. The RFP system is now ready to generate another SRQ event. If the SRQ bit does not clear, then there is another pending SRQ event and the cause will need to be cleared before the SRQ event will end. If there is a pending but not enabled SRQ event pending and the corresponding bits in the ESE or PE registers are then set, this will then generate an immediate SRQ and the client will need to issue commands to clear these events before any other SRQ’s will be recognized.

SETTING THE

SRQ

BIT IN THE

STB,

AN EXAMPLE

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Comm

and Description

2.14

TRIGGER SCPI COMMANDS

The ReFlex Power™ Controller (RFPC) Trigger commands interact with the Trigger commands of the High Power/Low Power programmable DC modules, and not with any of the other modules. The role of the RFPC is to source trigger signals to and/or from its front panel or rear panel backplane buss. Please see the DC Module Remote Programming section of this manual for details and requirements.

2.14.1

TRIGGER SCPI C

OMMAND SUMMARY

TRIGger :DISPlay? :INP <t>, OUTP <t> :OUTP <t>, INP <t> :TRIGger <t>

2.14.2

TRIGger :DISPlay?

:INP <t>, OUTP <t> :OUTP <t>, INP <t>

:TRIG <t> TRIGger<t> :ENABle :DISable

:SLOPe [POSitive | NEGative | BOTH |

TRIGGER SCPI C

:WIDTh<+NRf>

:LEVel [HIGH | LOW | ?]

OMMAND REFERENCE

Trigger subsystem. Displays a list of the module numbers that use the GPIO Buss signals. Map RFPC’s GPIO Buss signals (t = a, b, c, or d) to Front Panel triggers (t = fa, fb, fc, fd), specifying direction. (one-one mapping) Generate a RFPC trigger, t = fa-fd.

t = fa - fd; RFPC Buss/Front Panel trigger enable t = fa - fd; RFPC Buss/Front Panel trigger disable t = fa – fd sets the RFPC Front Panel trigger input/output edge as positive, negative, or both.

NONE]

NONE disconnects the Buss to Front Panel connection.

t = fa – fd sets the RFPC Front Panel trigger output pulse width. The WIDTh timing range is 2.0e-6 to 2.097 seconds.

t = fa - fb: sets RFPC Front Panel Trigger outputs fa and/or fb to LEVEL mode, disabling trigger mode. The level can only be queried after being set. Use TRIG<t>:SLOPe NONE, to return to trigger mode.

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Command

Description

2.15

MEMORY SCPI COMMANDS

The RFP system has a section of writeable flash memory that is reserved for module specific data; this includes Model, Serial #, calibration, and hardware initialization information. In some instances, depending on module type, LIST sequences are also stored in this area. The CRC:USRDAT? command calculates and returns a CRC value for each file in the read / write file system, it posts an error message if files have been added / removed or changed without explicit command execution. If the supply is recalibrated and the calibration is saved, this would not generate any errors as the file update was explicitly requested.

The CLEar:USRDAT? command wipes the read / write file system of all files and information that is not the minimum required for proper module operation, it returns a CRC value for each of the required files, same as in the CRC:USRDAT? Command.

If a hardware error occurs during the flash file system wipe process, an error message will be posted.

2.15.1

MEMORY SCPI C

OMMAND SUMMARY

MMEMory<n> :CLEar:USRDAT? :CRC:USRDAT?

2.15.2

MMEMory<n>

CLEar:USRDAT?

:CRC:USRDAT?

MEMORY SCPI C

Memory subsystem. Wipes all data from the flash file system, and then restores the required information. The response string format is the same as for the CRC:USRDAT? command. If the read response times out, issue a SYST:ERR? to read the hardware flash related error encountered. This command typically takes 20 - 25 seconds to execute. Returns a CRC value for each file in the file system. The format is “#HXXXXXXXX,Filename;” for each file. The last file entry will not have a “;” appended and will have the termination specified by SYST:NET:TERM <+NRI> command.

OMMAND REFERENCE

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52 M380056-03 Rev M

3.1

3.2

DC MODULE REMOTE PROGRAMMING

INTRODUCTION

This section covers the remote programming of the ReFlex Power™ programmable DC power supplies, High Power DC (HPDC) and Low Power DC (LPDC). This interface enables operation of the HPDC and LPDC power supplies from a computer via the Ethernet, allowing full remote programming control and monitoring of the power supply.

FEATURES AND FUNCTIONS

EATURES

• 16-bit programming and 16-bit readback of voltage and current

• Programmable over/undervoltage protection with reset

• Programmable overcurrent protection

• User selectable Constant-Voltage/Constant-Current mode, with reset

• Field-upgradeable firmware via Ethernet

• Soft calibration

ROGRAMMABLE FUNCTIONS

• Output voltage and current

• Soft limits for voltage and current

• Over/Undervoltage protection

• Programmable Overcurrent trip point

• Output enable/disable

• Maskable fault interrupt

• Full calibration

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3.3

EADBACK FUNCTIONS

• Actual measured voltage and current

• Voltage and current settings

• Soft voltage and current limits

• Over/Undervoltage protection setting

• Status and Accumulated Status registers

• Programming error codes

• Fault codes

• Manufacturer, power supply model, serial number, and firmware

version identification

POWER-ON CONDITIONS

Table 3-1 presents remote power-on conditions for the programmable DC power supplies.

Table 3-1. Remote Power-on Conditions

Condition Default

Voltage 0 Volts (initial power–on voltage). Also see CAL<n>:INIT:VOLT Current 0 Amps (initial power–on current). Also see CAL<n>:INIT:CURR Soft Voltage Limit Model maximum voltage Soft Current Limit Model maximum current

OCP Trip Voltage OVP Trip Voltage

Output Relay State Auto Close of ISOL/SENSE on :STATE 1 command Output OFF Group No Modules Grouped, (such as parallel)

Model maximum current +20% (initial power–on OCP). See CAL<n>:INIT:CURR:PROT Model maximum voltage +7% (initial power–on OVP). See CAL<n>:INIT:VOLT:PROT

3.4

ERROR CODES

The ReFlex Power™ system supports the SCPI 1999.0 status reporting data structures. These structures are comprised of status registers and status register enable mask pairs. The following sections describe these pairs.

3.4.1 E

The programmable DC power supplies maintain an Error/Event Queue as defined by SCPI. The queue holds up to ten error events. Read it by issuing the SYSTem:ERRor? query, which reads in a First In/First Out (FIFO) manner. The read operation removes the entry from the queue.

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DESCRIPTION

The *CLS command will clear all entries from the queue. The following error codes are defined in the SCPI 1999.0 specification and

are supported by the DCPS. Error codes are in the range of [-32768, 32767]. SCPI reserves the negative error codes and 0, while error codes greater than 0 are device specific errors.

0, No error

The error queue is empty.

-102, Syntax error

An unrecognized command or data type was encountered.

-200, Execution error

This is a generic error when a specific error could not be identified. An execution error could be the result of the following condition:

A command could not be executed due to the current operational condition.

-222, Range Error

A <program data> element is out-of-range; for example, programming 150V, when the maximum allowed value is 135V.

-350, Queue overflow

The Error/Event Queue can contain up to 10 entries. If more than 10 error/event conditions are logged before the SYSTem:ERRor? query, an overflow will occur; the last queue entry will be overwritten with error -350. When the queue overflows, the least recent error/event remains in the queue and the most recent error/event is discarded.

NOTE: Some SCPI commands will generate the following replies, which can be viewed with the SYST:ERR? command:

Invalid 5PCalData Unable to open Module Data file - file system

problem

Invalid Password.

Unable to open Module Data file - file is locked

Unable to change Output State - Output Inhibited

Error occurs at the boot up sequence if the 5-point calibration data are not valid.

Error occurs at the boot up sequence if the module data file does not open

CAL<n>:UNLOCK

files to store the calibration or module data, but the password used is incorrect]

The

CAL<n>:UNLOCK

before using

“Password” [to unlock the

command is not used

CAL<n>:STORE

OUTP<n>:STATE <bool>

the DC module

command

[to power on or off

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DESCRIPTION

Command

Description

Unable to change Output State

Relay hot-switching prohibited or Parallel Slave

Unable to close Default Sense Relay, Default Isol Relay is open

Unable to open Output Relay, Sense Relay is closed

Relay hot-switching prohibited

Unable to change Polarity, an Output or Sense relay is closed

Unable to close Sense relay, Output Relay is NOT closed

Module Firmware too old to support this RFP Controller Firmware Revision

OUTP<n>:STATE <bool>

the DC module

OUTP<n>:STATE <bool>

the DC module User tries to close the sense relay with the

[to power on or off

CAL<n>:INIT:DEFAULT:SENSE <bool>

command when the isolation relay is open User tries to open the isolation relay with the

CAL<n>:INIT:DEFAULT:ISOL <bool>

command when sense relay is closed User tries to open the isolation relay with the

OUTP<n>:ISOL <bool>

output voltage is on User tries to change the polarity of the module

with the when Isolation and sense relay is closed

User tries to close the sense relay with the

OUTP<n>:POL <bool>

OUTP<n>:SENSE <bool>

isolation / output relay is not closed The addressed module’s firmware version is too

old to be compatible with the RFPC’s firmware

command when the

command

3.5

COMMON SCPI COMMANDS

The following commands are common to all SCPI instruments and declared mandatory by IEEE-488.2. In the following table, the DCPS is defined as the “device” on the bus.

Table 3-2. Common SCPI Commands

*CLS<n>

*IDN<n>?

*OPC<n>?

*RST<n>

*TST<n> *TST<n>?

Clears module hardware faults latch Returns the device identification as an ASCII string.

Response: <Manufacturer>,<model>,<serial number>,<firmware version> Example: ELGAR,RFP-D1016-021,1234A56789,3.000.001 Operation Complete Query: Returns the integer value “1” when all pending operations are complete. Resets the supply to its Power ON (PON) state. Clears status reporting data structures the Protection Event and the Condition Status Registers. Enable registers are not cleared by this command. RST will reset all modules. Initiate self-test

Returns the results from the last self test the module performed. Returns a decimal value, convert to Hex because more than one bit can be set. See Table 2-6

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3.6

CALIBRATION SCPI COMMANDS

CAUTION

Before attempting to execute any of the HP/LP DC power supplies calibration commands, follow the calibration procedures in the ReFlex Power™ Operation Manual (M380056-01), DC Power Supplies Section. Qualified personnel who are appropriately trained to deal with attendant hazards must perform calibration. If calibration is not performed properly, functional problems could arise, requiring that the supply be returned to the factory.

3.6.1 CALIBRATION

CALibrate[n]

:INITial

:CURRent <0+NRf> [:AMPLitude] <NRf> [:AMPLitude]?

:PROTection <NRf>

:PROTection? :VOLTage <0+NRf> [:AMPLitude] <NRf> [:AMPLitude]? :PROTection <NRf> :PROTection? :STATe <Bool> :STATe?

:UNDERVOLTage

:PROTection <NRf>

:PROTection?

:DEFAult

:OUTPut :CURRent

:COUNTS <NRi>

:FIVEPOINT<1-5> <NRi>

:FIVEPOINT? :PROTection

:COUNTS <NRi> :VOLTage :COUNTS <NRi> :FIVEPOINT<1-5> <NRi>

:FIVEPOINT? :PROTection :COUNTS <NRi> :MODule :VOLTage? :CURRent?

SCPI C

OMMAND SUMMARY

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Command

Description

protection.

Set Current DAC

setpoint, in counts

:LOCK

:STORe :UNLock <string> :REVERT:FACTory

3.6.2 CALIBRATION

CALibrate<n> :INITial :CURRent [:AMPLitude] <NRf> [:AMPLitude]?

:PROTection <NRf>

:PROTection? :VOLTage [:AMPLitude] <NRf>

[:AMPLitude]?

:PROTection <NRf>

:PROTection?

:UNDERVOLTage :PROTection <NRf>

:PROTection?

:STATe <bool> :STATe?

SCPI C

Calibration subsystem. Module ‘n’.

Sets the power-on default value of current. Query the power-on default value of current Sets the power-on default value of the over current protection. Query the power-on default value of the over current protection.

Sets the power-on default voltage. Should be set to zero volts to avoid hot switching of output relay. Query the power-on default voltage. Should be set to zero volts to avoid hot switching of output relay. Sets the power-on default value of the over voltage protection. Query the power-on default value of the over voltage protection.

Set the initial POR output state of the unit Query the initial POR output state setting of the unit

Sets the power-on default value of the under voltage protection. Query the power-on default value of the under voltage

OMMAND REFERENCE

Sets initial settings to Factory defaults of 0.0

:DEFAult

:OUTPut :CURRent :COUNTS <NRi>

:FIVEPOINT<1-5> <0+NRf>

:FIVEPOINT? :PROTection

:COUNTS <NRi> :VOLTage :COUNTS <NRi>

:FIVEPOINT<1-5> <NRf>

Volts/Amps/UVP, OVP/OCP to Module Max values and POR State to Off.

Sets the current output calibration point (1 through 5). The actual output current is measured with an external meter. Returns 5 pairs of current calibration setpoint count and related current values

Set Protection value 0-4095 Set Voltage DAC setpoint, in counts

Sets the voltage output calibration point (1 through 5). The actual output voltage is measured with an external meter.

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Command

Description

Returns Module Current rating

Command

Description

3.7

:FIVEPOINT? :PROTection

:COUNTS <NRi> :MODule :VOLTage? :CURRent?

:LOCK

:UNLock <string> :STORe :REVERT:FACTory

Note 1: If CAL:INIT:STATe is ‘1’, the module will automatically turn on as if an OUTP:STATe 1 command had been received. This will only occur during initial power up, *RST will only restore the saved CAL:INIT values. The unit will not automatically turn on, if enabled, after a *RST.

MEASURE SCPI COMMANDS

3.7.1 MEASURE

SCPI C

Returns 5 pairs of voltage calibration setpoint count and related voltage values.

Set Protection value 0-4095 Returns Module Voltage rating Disables access to the non-volatile memory. Prevents

attempts to store calibration values. Unlocks the non-volatile memory to store calibration constants. The access string is “6867”. Stores the calibration constants in non-volatile memory. Restores the original factory calibration, into non-volatile memory. Wait 30 seconds and then Power cycle.

OMMAND SUMMARY

MEASure[n]

:CURRent? :POLARity? :VOLTage? :POWer?

3.7.2 MEASURE

MEASure<n> :CURRent? :POLARity? :VOLTage? :POWer?

SCPI C

Measure subsystem. Module ‘n’. Returns the floating point value of the DC output current in amps. The value will be negative if the polarity relay is in the INV state. Returns Polarity Relay setting. Returns the floating point value of the DC output voltage in volts. The value will be negative if the polarity relay is in the INV state. Returns the power in Watts that are delivered to the Load.

OMMAND REFERENCE

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Command

Description

3.8

OUTPUT SCPI COMMANDS

3.8.1 OUTPUT

SCPI C

OMMAND SUMMARY

OUTPut[n] :ISOLation <bool> :DEFault <bool> :DEFault? :ISOLation? :POLarity <NORM/0/OFF|INV/1/ON> :POLarity? :PROTection :DELAY <NRf> :DELAY? :FOLD <NRi> :FOLD? :SENSe <bool> :DEFault <bool> :DEFault? :SENse? :STATe <bool> :STATe? :TRIPped?

:MODFault <bool> :MODFault? :CLEar <bool> :CLEar? :DPDelay

:TIMER <NRf> :TIMER?

3.8.2 OUTPUT

OUTPut<n>

:ISOLation <bool>

:ISOLation?

:POLarity <NORM/0/OFF | INV/1/ON>

DEFault <bool>

DEFault?

SCPI C

OMMAND REFERENCE

Output subsystem. Module ‘n’. Turns 1/ON or 0/OFF, the output isolation relay. The output voltage must be set to zero prior to issuing this command. The ISOL relay can’t be opened if Sense relay is closed.

Query the state of the ISOLation relay. 0 = open, 1 = closed. Sets DEFault state of ISOL Relay, POR default state is ON. The

ISOL/SENSe relays will be automatically sequenced during the STATE command.

Query DEFault state of Isolation relay Changes the state of the polarity relay. This command requires

that the isolation/sense relays be opened beforehand. If the isolation relay is closed when this command is attempted, the state of the polarity relay will not change, and an error message

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operation.

Used

to enable / disable

Fault Group operation.

allow a Fault Group to be cleared.

will be generated. The default Polarity will be Normal with the Positive Output on Out 1.

:POLarity?

:PROTection

:STATe <bool>

:STATe?

:SENSe <bool>

:SENSe?

:DEFault <bool>

:DEFault? :TRIPped?

:MODFault <bool>

:DELAY <NRf> :DELAY? :FOLD <NRi>

:FOLD?

Query the state of the polarity relay.

Set Shutdown delay timer value, 0 to 40.95 Seconds Query Shutdown delay timer value Shutdown Mode, 0= Normal CC/CV mode operation.

1= Fault if Supply switches into Voltage mode. 2= Fault if Supply switches into Constant Current mode.

Query Shutdown Mode setting. Closes the isolation/sense relays. Sets the output voltage and

current to programmed values, turns on the supply. Valid arguments are 1/ON or 0/OFF. *RST state value is OFF.

CAUTION: Ensure that suitable delays are incorporated to preclude hot switching of the isolation relay. See :DEFault keyword entry for automatic relay operation..

Query the state of the unit. 1 means unit is on and 0 means unit is off Turns On/Off the output Sense relay. The output ISOL relay must be closed to close the Sense relay. Valid arguments are 1/ON or 0/OFF. Query the state of output SENSe relay. Sets DEFault state of SENSe Relay, POR default state is ON. The ISOL/SENSe relays will be automatically sequenced during the STATE command. Query DEFault state of SENSe Relay. Returns the integer value 1 (TRIPPED) or 0 (UNTRIPPED) state of the output. When 1/ON, sets Module Trigger Out to assert HIGH when a HW fault is detected. 0/OFF returns Trigger out to normal

:MODFault? :CLEar <bool> :CLEar?

DPDelay

:TIMER

:TIMER?

<NRf>

Query the state of Module Fault Mode When in Module Fault mode, 1/ON, forces Trigger out to LOW to

Query if the state of the Module Fault output is forced LOW. Down Programmer turn off delay timer (maximum ON time) Programs the down programmer to be ON for a maximum of 0.1

to 60.0 seconds. Programming 0 seconds (Default setting) disables the timer, and the down programmer is always enabled If the timer counts down and expires, the down programmer will be turned OFF. The timer starts when the down programmer needs to sink current to keep the supply output in regulation. The programmed value is automatically saved. It is not cleared by *RST. SYST:ERR?:- ELGAR_NOT_ SUPPORTED is returned if the feature is not implemented. Returns the setting for the delay timer. If 0.0 is returned, the max on delay timer is disabled, and then down programmer enabled. This is the default operating mode. If the feature is not implemented ELGAR_NOT_SUPPORTED is returned.

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3.9

SOURCE SCPI COMMANDS

3.9.1 SOURCE

SOURce[n] :CURRent <NRf> :CURRent? :LIMit <NRf> :LIMit? :PROTection <NRf> :PROTection? :TRACKing <bool> :TRACKing? :MODE?

:RAMP See Table 3-9. For Software Ramps :TRIGger See Table 3-8. For Software Setpoints

:VOLTage <NRf> :VOLTage? :LIMit <NRf> :LIMit? :PROTection <NRf> :PROTection? :TRACKing <bool> :TRACKing?

:RAMP See Table 3-9. For Software Ramps :TRIGger See Table 3-8. For Software Setpoints

:UNDERVOLTage

:PROTection <NRf>

:PROTection? :TRACKing <bool> :TRACKing? :TRIPped?

SCPI C

:ENABle <bool> :ENABle?

OMMAND SUMMARY

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Command

Description

Sets the overvoltage protection trip point in volts.

3.9.2 SOURCE

SOURce<n> :CURRent <NRf> :CURRent?

:LIMit <NRf>

:LIMit? :PROTection <NRf>

:PROTection?

:TRACKing <bool>

:TRACKing?

:VOLTage <NRf> :VOLTage?

:LIMit <NRf> :LIMit? :PROTection <NRf>

:PROTection?

:TRACKing <bool> :TRACKing?

:ENABle <bool>

:ENABle?

:UNDERVOLTage :PROTection <NRf>

:PROTection? :TRACKing <bool>

:TRACKing? :TRIPped?

:MODE?

Query, 1 is constant current mode, 0 is voltage mode. See

:RAMP :TRIGger

SCPI C

OMMAND REFERENCE

Source subsystem. Module ‘n’. Sets the output current in amps. Query the set output current in amps. Sets an upper soft limit on the programmed output current for the supply. Query an upper soft limit on the programmed output current for the supply. Sets the overcurrent protection trip point in amps Query the overcurrent protection trip point in amps Set the over current protection to tracking. 1 means turn on the tracking supervisory and 0 means turn off the tracking supervisory Query the tracking supervisory status.

OUTP[n]:PROT:FOLD command. See Table 3-9. For Software Ramps See Table 3-8. For Software Setpoints Sets the output voltage of the supply in volts. *See note at end of this table. Query the set point of the output voltage of the supply in volts. Sets the upper soft limit on the programmed output voltage. Query an upper soft limit on the programmed output voltage.

Query the set point of the overvoltage protection trip point in volts.

Set the over voltage protection mode to tracking. 1 equals on, and 0 turns off the tracking supervisory. Query the tracking supervisory status. Disable OVP when OFF, Save current setting, and set OVP to factory maximum value. When ON, restore the saved OVP setting. Query if OVP is Enabled or Disabled. See Table 3-9. For Software Ramps

See Table 3-8. For Software Setpoints

Sets the undervoltage protection trip point in volts. Query the set point of the undervoltage protection trip point in volts. Set under voltage protection tracking. 1 = On, 0= Off. Query the tracking supervisory status. Returns 1 if the supply has an undervoltage fault

*Note: Set and Query the state of the polarity relay using the OUTPut<n>:POLarity command.

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Command

Description

3.10

INPUT SCPI COMMANDS

3.10.1 INPUT

INPut<n>

3.10.2

INPut<n>

:MENAble:MODE <NRi>

:MENAble:MODE?

:MENAble:STATE?

SCPI C

OMMAND SUMMARY

:MENAble:MODE <NRi> :MENAble:MODE?

:STATE?

INPUT SCPI C

0 = Allows the Module ENAble signal to turn the DC supply back On, only if it was faulted off by Module ENAble going false. (Default setting) If the supply was off by Module ENAble, and a *RST<n> is issued, the DC supply will not turn on, unless a OUTP<n>:STAT 1 command is issued. 1 = Prevents the Module ENAble signal from turning the DC supply On. An OUTP:STAT 1 is required to turn the supply back on. 2 = Module ENAble will always try to turn on the DC supply when it goes from Off to On. Note: Settings are automatically saved.

Query the Module ENAble MODE setting. Default is 0. 1 = The Hardware Module ENAble signal is asserted, the module can

be turned On. 0 = When the Hardware Module ENAble is false; the module is Off.

OMMAND REFERENCE

Note: The usage of the OUTPut<n>:MODFault On command will temporarily disable the operation of the INPut<n>:MENA:MODE command while it’s active.

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Command

Description

mode switches back to CV.

Default timer value is 0.

Mnemonic

3.11

STATUS SCPI COMMANDS

3.11.1

STATUS SCPI C

OMMAND SUMMARY

STATus[n]

:MODE

:DELAY <0+NR1>

:DELAY?

:MODule :ENABles <0+NR1> :ENAB? :FAULts?

3.11.2

STATus<n> :MODE:DELAY <0+NR1>

:MODE:DELAY? :MODule :ENABles<0+NR1>

:ENABles? :FAULts?

STATUS SCPI C

Status subsystem. Module ‘n’. Sets the delay timer for responding to a status change from CV

to CC mode. Value in counts: 0 to 255, of approximately 20ms for each count. Delay counter is immediately reloaded when the

Returns the CV to CC status delay timer value. *RST sets to 0.

Enable supervisory. See Table 3-3 for enable values.

Query the enabled supervisories

Query the module faults

OMMAND REFERENCE

Table 3-3. DC Fault and Enable Register

Bit Hex Value

0 0x00000001 LDF Line Drop Fault 1 0x00000002 RSF Reverse Sense Fault 2 0x00000004 OCP Over Current Fault 3 0x00000008 OVP Over Voltage Protection Fault 4 0x00000010 ROCP Redundant Over Current Protection Fault 5 0x00000020 ROVP Redundant Over Voltage Protection Fault 6 0x00000040 UVP Under Voltage Protection Fault 7 0x00000080 RESERVED 8 0x00000100 IMPTEMPHSK1 Heatsink1 Temperature is Warm

9 0x00000200 IMPTEMPHSK2 Heatsink2 Temperature is Warm 10 0x00000400 OVTEMPHSK1 Heatsink1 Temperature Exceeds Limit 11 0x00000800 OVTEMPHSK2 Heatsink2 Temperature Exceeds Limit 12 0x00001000 AFF Air Flow Fault 13 0x00002000 UVP5V Internal 5V Under Voltage Fault 14 0x00004000 OVP5V 5V Over Voltage Fault

Description

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Mnemonic

Bit Hex Value

15 0x00008000 UVPP12V +12V Under Voltage Fault 16 0x00010000 OVPP12V +12V Over Voltage Fault 17 0x00020000 UVPM12V -12V Under Voltage Fault 18 0x00040000 OVPM12V -12V Over Voltage Fault 19 0x00080000 GNDF Ground Fault 20 0x00100000 OCLF Outer Control Loop Fault 21 0x00200000 ICLF Inner Control Loop Fault 22 0x00400000 RESERVED 23 0x00800000 RESERVED 24 0x01000000 PRIENA Primary DC Bus Enable Fault 25 0x02000000 PRST Power-on Reset Fault 26 0x04000000 GRPF Group Fault 27 0x08000000 MDENA Module Enable False (Does not activate Fault Led) 28 0x10000000 CNVF Converter Fault 29 0x20000000 PAOC Primary Average Overcurrent Fault (PAOC or AVG_TRP) 30 0x40000000 Analog Fault Analog Fault

31 0x80000000 RESERVED

Note: Turning off Supervisory Enables can allow permanent and catastrophic damage to the Module to occur.

Description

3.12

TRIGGER SCPI COMMANDS AND LISTS

The ReFlex Power system provides for two programming modes, these modes are only available in the High Power and Low Power DC (HPDC and LPDC) modules: the List/Trigger mode, and the Software Setpoint and Ramps mode.

The List/Trigger mode (Section 3.12.1) provides the ability to program accurate and tightly timed, externally-synchronized events ranging from simple, synchronized output changes to complex multiple-step, multi-module, externally and internally driven sequences (Lists), which can be driven by hardware trigger signals.

The Software Setpoint and Ramps mode (Section ) provides the ability to program a software-triggered voltage and/or current setpoint change, and to ramp the supply output, with an execution latency of 10-20 mSec.

3.12.1

LIST

AND TRIGGER COMMAND OPERATION

This section describes first the Trigger architecture and behavior, then describes Lists and List/Trigger requirements. Each programmable High Power and Low Power DC power module has a module level trigger input and output signal as a part of its front panel control interface. The ReFlex Power™ Controller has four general-purpose I/O signals, which are bussed to

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all modules via high-speed backplane signals. Each can be programmed to control the module or have the module indicate its condition. This capability is extendable to grouped modules as well.

In addition to or in conjunction with these synchronizing features, the ReFlex Power™ module(s) can process a sequence (List) of pre-programmed commands, frequently driven by trigger signals, to control its output.

Figure 3-1 diagrams the various trigger ports and trigger architecture in the ReFlex Power™ system. Each module has a unique set of trigger in/out ports. These are termed the module ports and have the same address as the power module. There are up to four bussed trigger ports that are shared by all modules. Each power module and the ReFlex Power™ Controller can access these signals to either send or to receive trigger signals. The limitation on the number of these signals is due to their also being used to support DC series groups and to create fault groups. Hence the sum of DC series groups, fault groups and allocated buss trigger signals must be less than or equal to four.

TRIGGER BUSS

SHARED W ITH

ALL MODULES

RFP IN TE RN AL

BACKPLANE

MODULE

TRIGGER

LO G IC

RFP CONTROLLER

TRIGGER LOGIC

ROUTING

A N

MODULE TRIGGER INPUT

MODULE TRIGGER OU TPUT

USER SPACE

<FA, FB, FC, FD>

<FA>

SOFTW ARE TRIGG ER

TRIGGER

I/O

<FA>

Figure 3-1. RFP Trigger Logic

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XTERNAL FRONT PANEL MODE TRIGGERING

Figure 3-2 outlines the basic features of the external mode trigger input operation. In this case, the trigger is sent to the power module that has been pre-programmed to respond in a particular fashion, such as setting an output voltage level.

This is also the simplest mode as after setting up the condition, (shown as the external arming event) the module simply waits for the trigger to be received and then proceeds to set the output to previously established value(s) possibly after a delay time. The external arming event encompasses the receipt of a command sequence needed to setup the module prior to trigger receipt.

A B O R T

ID LE S T A T E

IN IT IA T E D S T A T E

R E S E T o r P O W E R O N

E X T E R N A L

A R M IN G E V E N T

W A IT F O R

T R IG G E R S T A T E

E X T E R N A L

T R IG G E R E V E N T

D E L A Y IN G S T A T E

D E L A Y C O M P L E T E

O U T P U T

C O N D IT IO N

C H A N G E

Figure 3-2. Fixed Mode Trigger Input

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Each power module’s trigger interface can be routed as a local signal used only by the power module or can be connected to the buss trigger set by SCPI command. When externally commanded, the ReFlex Power Controller establishes this allocation and sends the power module the sequence of trigger routing commands. The default is to have the power module’s triggers signals all local to the module. The Module’s front panel trigger input and output are separate and distinct; they are always available for internal usage.

Figure 3-3 shows the signal routing from the trigger signal received by the power module to the switch, (diagrammatic representation only). When the switch is closed, opposite to that shown, then the received trigger is routed to the backplane trigger buss.

Figure 3-3. Module/Buss Trigger Input

Figure 3-4 shows the signal routing for trigger transmitted from the power module, which is out of power modules front panel connector. If the switch is closed, opposite to the position shown, the backplane buss signal is also routed to the modules front panel connector. Note in both cases, the module can receive the trigger buss signal.

Figure 3-4. Module/Buss Trigger Out

Table 3-4 lists the SCPI commands associated with routing of the trigger signals. Note this command assumes that buss trigger resources are available, if they are not, the ReFlex Power™ Controller will respond with an error message that the trigger cannot be allocated.

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‘<t>’ is the Trigger signal specifier. All modules can use the simplex Intermodule Trigger Buss; these signals are designated ‘a’ through ‘d’. The ReFlex Power™ Controller has four simplex Front Panel trigger signals, designated ‘fa’, ‘fb’, ‘fc’, ‘fd’. For all DC Modules, ‘fa’ designates its own Front Panel trigger in and out pins, which do not need to be configured as an IN/OUT, they do need to be configured using the TRIG:SLOPe commands.

Table 3-4. SCPI for Module Trigger Routing

SCPI Command Description

TRIGger<n>:INP <t> TRIGger<n>:OUTP <t>

TRIG<n>:INP <t>, OUTP <t> TRIG<n>:OUTP <t>, INP <t>

TRIG:INP <t>, OUTP <t> TRIG:OUTP <t>, INP <t> TRIG<n>:DISPlay? TRIG:DISPlay? TRIG<t>:ENABle1 TRIG<t>:DISable1

Establish that on module n, trigger t is an input. t = a-d, fa (sets switch open) Establish that on module n, trigger t is an output. t = a-d, fa (sets switch open)

n = Module number. The RFP’s GPIO Buss signals (t = a, b, c, or d) connected to ‘fa’, the Modules Front Panel trigger, specifying direction. The trigger signal is passed through the Module. (switch closed) Map RFPC’s GPIO Buss signals (t = a, b, c, or d) to Front Panel triggers (t = fa, fb, fc ,fd), specifying direction. (switch closed) Displays the module’s usage of the GPIO Buss signals. Displays a list of the module numbers that use the GPIO Buss signals. RFPC (t = fa, fb, fc ,fd), trigger enable RFPC (t = fa, fb, fc ,fd), trigger disable

Note: At this time the ReFlex Power™ Controller only implements direct trigger mapping ‘a’ to

‘fa’, ‘b’ to ‘fb’…

Allow a signal to pass/not pass through the trigger channel specified. (Output enabled).

RIGGER SIGNALS

Trigger signals can be any one of three types:

•

Positive leading edge assertion

•

Negative leading edge assertion

•

Dual edge

Each of these has specific point(s) at which triggering occurs. All three trigger types can be input or output, and are established by SCPI commands. The positive edge trigger assertion is used for the example figures herein though any of the allowed trigger types can be used.

The positive and negative edge triggers should be familiar but the dual edge trigger may not be as obvious. The trigger input is not analog, it is digital and follows the levels that are listed within this section. If the quiescent state is low then the trigger occurs when the signal transitions to the high state. This is shown as a slow ramp up of the trigger signal, (in fact the ramp time is typically very rapid). When the trigger signal passes through about 3.2 V the trigger is asserted. The next trigger occurs when the signal transits back

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down to about 1.3 V where upon the next trigger is asserted. This is termed de-assertion for differentiation but in fact it is just the next trigger event.

Figure 3-5. Trigger Signal Types

Table 3-5 provides the detailed input trigger signal specifications for the various states.

Table 3-5. Input Trigger Signal Specifications

Trigger

Input Voltage and Current Trigger Latency3

Range

(Volts)

+16.5 to –5 Vil <= 1.35 @ 1mA Vih >= 3.15 @ 1mA

Positive Assertion Negative Assertion Period Trigger Recovery Time

Typical high-level leakage current is 1.15 mA @ 16.5V DC.

All voltages are with respect to the associated return signal.

Trigger latency is the maximum time from trigger receipt to when the response begins.

Low Level

(Volts)

High Level

(Volts)

Timing

(Microseconds)

Tlin ≤ 5 Tinh ≥ 2

Tinl ≥ 2 Trt ≥ Tinx orTrt > 50

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Figure 3-6 and Table 3-6 specify the trigger out signals.

Figure 3-6. Output Trigger Timing

Table 3-6. Output Trigger Specifications

Trigger

Output Voltage and Current1 Trigger Latency4

Range

(Volts)

+5.5 V to –0.7V

Low Level

(Volts)

Vol <= 0.3V @ 1mA

High Level

(Volts)

Voh >= 4.13 @ 1mA

Positive Assertion Period Negative Assertion Period Trigger Recovery Time

Typical high-level leakage current is 0.01 mA @ 5.5V DC.

All voltages are with respect to the associated return signal.

Maximum low-level sink current is 7 mA.

Trigger latency is the maximum time from selected event to when the trigger is issued.

Timing

(Microseconds)

Tlout ≤ 5 Touth ≥ 2 Toutl ≥ 2 Trt > Toutx + 4

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RIGGER INPUT RESPONSES

The operation surrounding the response due to the receipt of a trigger by a power module is shown in the next figure. The trigger condition can be based on establishing either voltage or current settings. Actually, both voltage and current can be set due to a single trigger receipt.

IST MODE TRIGGERS

List mode triggering is more complex in that its function is to create complex operational sequences (Lists) that are timed precisely with respect to an external trigger or internal event. That is, either trigger or an event can initiate a sequence. The following figure outlines the logic flow of trigger driven list processing.

Figure 3-7. Trigger Input Responses

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ABO RT

ID LE S TA T E

IN ITIAT E D STA T E

TRIGG ER W A IT STA T E

DW E L L IN G STA T E

DW ELL C O MP L ETE

OU T P UT C O ND ITION

CH A NG E

AR M IN G EVE N T

RE S E T

TRIGG E R EV E NT

ODULE OPERATION IN

When a LIST is being created in a module, the module is placed in a special mode. This mode inhibits actual relay operation, to minimize any chance of energizing an external load. The output relays are inhibited from closing on STATE ON commands.

RAMP commands go from start point to endpoint with no delay. Trigger output, WAIT’s and DWELL’s are not executed. Setpoint commands are executed. All query commands except actual relay states and MEAS:CURR are fully functional.

LIST C

DW E L L IN G STA T E

DW ELL C O MP L ETE

LIS T

DO N E?

YE S

Figure 3-8. List Mode Logic

REATION MODE

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During the execution of a LIST, only query commands are acceptable; setpoint commands may generate errors or cause improper LIST execution.

List creation can only occur in standalone mode. Information and requirements of Module operation during List creation and

execution include:

•

The maximum size allowed for a single list is 2040 entries.

•

Each SCPI command may translate to 1 or as many as 10 entries depending on the command.

•

The current size of a list can be queried during LIST creation by using the LIST<n>:TAG? command.

•

Lists can be saved in non-volatile memory and recalled by using the name of the list.

•

When a LIST is being created in a module, the module is placed in a special mode. This mode inhibits actual relay operation, to minimize any chance of energizing an external load.

•

The output relays are inhibited from closing on STATE ON commands, and RAMP commands go from start point to endpoint with no delay.

•

Trigger output, WAIT and DWELL commands are compiled, but not executed.

•

Any triggers that are received during the execution of a LIST:RAMP or LIST:DWELL command are ignored.

•

Setpoint commands are executed.

•

All query commands except actual relay states and MEAS:CURR are fully functional.

•

During the execution of a LIST, only query commands are safe.

•

During LIST creation, non-LIST commands may interact with the LIST to generate commands to automatically control the supply.

•

If Tracking is ON, (OVP, OCP, UVP) their setting changes will automatically be included in the LIST commands for simple setpoint changes.

•

Tracking modes do NOT function properly with RAMP commands, and may generate errors if attempted when a ramp is executed. Tracking modes must be turned off and OVP, OCP, and UVP set to proper values for the specific RAMP command, else faults may occur. After the RAMP command and new setpoints have been issued, tracking may be then turned back on.

•

In List mode, all relay operation should always be coordinated with the STATE command by using the OUTP:ISOL/SENSE:DEF commands.

•

<filename> is case sensitive; double quoted string, maximum 29 characters in length, no path/file extension is allowed.

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There may be additional commands added as the product is applied. The non-LIST commands that interact with LISTs during creation are:

OUTP<n>:ISOL:DEF <bool> OUTP<n>:SENSE:DEF <bool> OUTP<n>:STATE <bool> OUTP<n>:POL <bool> SOUR<n>:CURR <+NRf> SOUR<n>:CURR:PROT <+NRf> SOUR<n>:CURR:PROT:TRACK <bool> SOUR<n>:VOLT <+NRf> SOUR<n>:VOLT:PROT <+NRf> SOUR<n>:VOLT:PROT:TRACK <bool> SOUR<n>:UNDERVOLT:PROT <+NRf> SOUR<n>:UNDERVOLT:PROT:TRACK <bool> TRIG<n>:TRIG <t> TRIG<n>:INP <t>, OUTP <t> TRIG<n>:OUTP <t>, INP <t> TRIG<n>:INP <t> TRIG<n>:OUTP <t> TRIG<n>:INPut:SLOPe [POSitive | NEGative | BOTH | NONE] TRIG<n>:OUTput:SLOPe [POSitive | NEGative | BOTH] TRIG<n>:WIDTh <+NRF>

See Section 3.15 for a summary and description of the LIST commands.

IST TRIGGER GROUPS

All ReFlex Power™ high power and low power DC power modules can be programmed to respond to the common trigger buss. The response to the trigger or triggers allows a complex cross module type tightly timed sequence to result. All this on a single module basis there is little new, the novel part is to establish a trigger sequence that crosses several modules.

One new concept is to assign one or more power modules one or more trigger pulses from a pulse sequence. If the pulse sequence is very tightly timed and well described, the result is a complex well-timed sequence of events. The following figure and associated table describes this concept.

Figure 3-9. Group Pulse Sequence

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Pulse

Module

Function

3 DC2 IDC2 to 1.2A and 5.5 volts

Table 3-7. Group Pulse Function

1 DC1 DCV1 output to 5 V 2 DC1 and DC2 DCV1 to 10V and DCV2 to 5V

4 DC1, DC2 All outputs off 5 DC3 DCV3 to 12V and 2.0A 6 DC3 DC3 off

The following section provides various List and Trigger examples for synchronizing multiple modules.

IST MODE EXAMPLES

1. Generate a 1 Volt saw tooth waveform on a 12 volt output to simulate AC rectification ripple for 2.5 seconds.

… LIST2:LABEL3

LIST2:RAMP:VOLT 13.0, 12.0, 8.33333e-3 LIST2:LOOP 299, LABEL3 …

2. Trigger example: synchronize multiple Modules, 1 & 4.

LIST1:START "TRIGTEST" // start LIST on module 1 TRIG1:INP A // set backplane line A as trigger input SOUR1:VOLT 0.0 // set initial voltage to 0 SOUR1:CURR 1.0 // set current OUTP1:STAT 1 // turn supply on LIST1:LABEL0 // label allows the segment to be repeatable LIST1:TRIG A, WAIT // wait for 1st trigger SOUR1:VOLT 15.0 // program voltage LIST1:TRIG A, WAIT // wait for 2nd trigger LIST1:TRIG A, WAIT // wait for 3rd trigger LIST1:TRIG A, WAIT // wait for 4th trigger SOUR1:VOLT 0.0 // program voltage to 0 LIST1:LOOP 1, LABEL0 // loop once to repeat the sequence OUTP1:STAT 0 // turn off supply LIST1:END // end the LIST LIST1:STORE // store the list

LIST4:START "TRIGTEST" // start LIST on module 4 TRIG4:INP A // set backplane line A as trigger input SOUR4:VOLT 0.0 // set initial voltage to 0 SOUR4:CURR 5.0 // set current OUTP4:STAT 1 // turn supply on

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LIST4:LABEL0 // label allows the segment to be repeatable LIST4:TRIG A, WAIT // wait for 1st trigger LIST4:TRIG A, WAIT // wait for 2nd trigger SOUR4:VOLT 5.0 // program voltage LIST4:TRIG A, WAIT // wait for 3rd trigger SOUR4:VOLT 0.0 // program voltage to 0 LIST4:TRIG A, WAIT // wait for 4th trigger LIST4:LOOP 1, LABEL0 // loop once to repeat the sequence OUTP4:STAT 0 // turn off supply LIST4:END // end the LIST LIST4:STORE // store the list

Setup the RFPC to transfer external trigger onto backplane trigger channel A.

TRIG:INP FA, OUTP A // set trigger channel IN to FA, OUT to backplane A TRIGFA:SLOPE POS // trigger FA response to rising edge active high TRIGFA:ENAB // enable RFPC channels FA and A

To execute the sequence issue the following commands:

LIST1,4:OPEN “TRIGTEST” // loads “TRIGTEST” on Modules 1 & 4. LIST1,4:ARM // this starts the LIST executing, which will

then execute the wait for trigger.

To cause the RFPC itself to generate a backplane trigger

3.13

TRIG:TRIG FA // Generate a hardware trigger internally

When you are done with LIST/TRIG operations

LIST1,4:CLOSE // this disables LIST processing on the DC modules TRIGFA:SLOPE NONE // tears down the RFPC trigger setup

SOFTWARE TRIGGERED SETPOINTS AND RAMPS

Software Setpoints and Ramps is a simple way of controlling a single module to generate a software triggered setpoint change, or ramp the supply output.

3.13.1

SOURce<n> :VOLTage :TRIGger <NRf> :TRIGger? :CURRent :TRIGger <NRf> :TRIGger? TRIGger<n> :TYPe <NRi>

VOLT AND CURRENT SOFTWARE SETPOINTS COMMAND

SUMMARY

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Setpoints

Description

Source Trigger commands allow a voltage and/or current setpoint to be delayed for later application. The trigger latency is on the order of 10-20 mSec. If multiple voltage or current commands are received, the earlier ones of each type will be overwritten, without error. These setpoints are not retriggerable.

Table 3-8. Software Triggered Setpoints

SOUR<n>:VOLT:TRIG <NRf> SOUR<n>:VOLT:TRIG? SOUR<n>:CURR:TRIG <NRf> SOUR<n>:CURR:TRIG? TRIG<n>:TYPe <NRi>

3.13.2

SOURce<n> :VOLTage :RAMP <NRf>,<NRf>,<NRf> :CURRent :RAMP <NRf>,<NRf>,<NRf>

:RAMP <NRf>,<NRf>,<NRf>,<NRf> SOURce<n> :VOLTage :RAMP

:CURRent :RAMP

:RAMP

TRIGger<n> :TYPe 3 :ABORt

VOLTAGE AND CURRENT SOFTWARE RAMPS COMMAND

UMMARY

:VOLTCURR

Setup for a deferred SOUR<n>:VOLT <NRf> command Query returns pending Voltage setting, -0.0 if inactive

Setup for a deferred SOUR<n>: CURR <NRf> command Query returns pending Current setting, -0.0 if inactive 0 = VOLT, 1 = CURR, 2 = Both, Apply the setpoints

:TRIGger <NRf>,<NRf>,<NRf> :TRIGger?

:TRIGger <NRf>,<NRf>,<NRf>,<NRf> :TRIGger?

Voltage and Current ramps can be setup and invoked on a software basis, these commands use the same hardware that is used for LIST/TRIGGER functions, so these functions cannot be used or intermixed at the same time. Issue a LIST<n>:CLOSe command to reset the LIST/TRIGGER subsystem when usage of these commands is done.

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The following table explains the parameters that are required for the RAMP commands and functionality. The warning about tracking modes also applies.

The SOUR:…:RAMP command come in two types: immediate and delayed (software TRIGgered), The duration of a RAMP is accurately timed, if the ramp start time must be tightly controlled to an external event, use LIST/TRIGGER processing. If multiple ramp trigger commands of any type are received, the earlier ones will be overwritten, without error. The delayed command type is not re-triggerable.

Table 3-9. Software Ramps

Command Description

SOUR<n>:VOLT:RAMP fVstart, fVend, fTSec SOUR<n>:CURR:RAMP fIstart, fIend, fTSec

SOUR<n>:VOLTCURR:RAMP fVstart, fVend, fIstart,

SOUR<n>:VOLT:RAMP:TRIG fVstart, fVend, fTSec

SOUR<n>:VOLT:RAMP:TRIG?

SOUR<n>:CURR:RAMP:TRIG fIstart, fIend, fTSec

SOUR<n>:CURR:RAMP:TRIG? SOUR<n>:VOLTCURR:RAMP: TRIG

SOUR<n>:VOLTCURR:RAMP:TRIG? TRIG<n>:TYPe <NRi>

TRIG<n>:ABORT

*OPC<n>?

fVstart, fVend, fIstart, fIend, fTSec

fIend, fTSec

Start an immediate voltage ramp. Start an immediate current ramp. Start an immediate voltage and current ramp,

changing both voltage and current Setup a voltage ramp, and then execute it when

triggered Query ramp parameters, Zeros are returned if

inactive. Setup a current ramp, and then execute it when triggered

Query ramp parameters, Zeros are returned if inactive.

Setup a voltage and current ramp, and then execute it when triggered

Query ramp parameters, Zeros are returned if inactive.

3= Execute the last loaded triggered ramp. Terminate a ramp in progress. 0= Module Busy, executing a Command, LIST or RAMP. 1= IDLE, a Command, List, or Ramp has finished execution.

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Command

Description

NEGative | BOTH]

3.14

TRIGGER SCPI COMMANDS

The SCPI commands associated with establishing external trigger signals are listed in this section.

3.14.1

TRIGGER SCPI C

OMMAND SUMMARY

TRIGger<n>

3.14.2

TRIGger<n> :DISPlay?

:INP <t>

:OUTP <t>

:INP <t>, OUTP <t> :OUTP <t>, INP <t>

:INPut:SLOPe [POSitive |

NEGative | BOTH | NONE1]

:OUTPut:SLOPe [POSitive |

:TRIG<t>2

:WIDTh<+NRf>

TRIGGER

SCPI C

OMMAND REFERENCE

Trigger subsystem. <n> = module number. Displays the module’s usage of the GPIO Buss signals, that are used in the currently loaded List. See LIST below.

Establish that on module n, trigger t is an input. t = a-d, fa (front panel only, in the DC module). (Non-pass through mode.)

Establish that on module n, trigger t is an output. t = a-d, fa. (Non-pass through mode.)

The RFP’s GPIO Buss signals (t = a, b, c, or d) connected to ‘fa’, the Modules Front Panel trigger, specifying direction. The trigger signal is passed through the Module.

Sets module n’s fa trigger input edge as positive, negative, or both.

Sets module n’s fa trigger output edge as positive, negative, or both.

Generate a trigger from module n, t = a-d, fa. n = Module number, sets Front Panel trigger output pulse

width in SLOPE POS / NEG mode. The WIDTh timing range is 2.0e-6 to 2.097 seconds.

Note: At this time the ReFlex Power™ system only implements direct trigger mapping

‘a’ to ‘fa’, ‘b’ to ‘fb’, ‘c’ to ‘fc’ and ‘d’ to ‘fd.’

The

TRIG:SLOPe NONE

parameter disables the trigger and disconnects the ‘fx’ to ‘x’

connection.

The POSitive and NEGative trigger pulse’s on the Front Panel trigger output are not

retriggerable, if a trigger pulse is being produced, and another trigger out is executed, it will be ignored, and no errors will be posted.

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mmand

Description

3.15

LIST SCPI COMMANDS

Please see Section 3.12.1 for background and proper use of the List commands.

3.15.1

LIST SCPI C

OMMAND SUMMARY

LIST<n> :START “filename” :END :STORe :DELETE “filename” :CATalog? :ABORT :OPEN “filename” :CLOSe :ARM :TAG <NRi> :TAG? :STATUS? :ERRor? :LABEL<0-31> :GOTO LABEL<0-31> :LOOP <NRi+>, LABEL<0-31> :DWELl <+NRf> :TRIGger <t>, WAIT :RAMP

:CURR fIstart, fIend, ftSec :VOLT fVstart, fVend, ftSec :VOLTCURR fVstart, fVend, fIstart, fIend, ftSec :CURR GE :CURR LT :VOLT GE :VOLT LT

NRf

, LABEL<0-31>

NRf

, LABEL<0-31>

NRf

, LABEL<0-31>

NRf

, LABEL<0-31>

3.15.2

LIST<n> :START <filename>1

:END :STORe

:DELETE <filename>1 :CATalog? :ABORT

:OPEN <filename>1

LIST SCPI C

OMMAND REFERENCE

LIST subsystem. Names the list in module n with <filename>. This must be the first SCPI command in the LIST sequence Ends the list that was started by the LIST<n>:START <filename> command. Save the list as <filename>, overwrite is allowed.

Deletes the saved list <filename> Returns the LISTs currently saved in module <n>. Stops a LIST operation, returns to the IDLE state.

Enables the saved list <filename> in module<n> for execution. This LIST can only be run; editing must be done in user space.

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Description

:CLOSe :ARM :TAG <NRi>

Opposite of LIST:OPEN, disables the currently open list. Clears the LIST<n>:ERR? and LIST<n>:STATUS? error responses.

Start module <n> executing the list upon receipt of this command. Creates a user queriable numeric marker in the LIST during list

execution. NRi = 1-1023. Returns the last encountered numeric marker that has been

:TAG?2

“executed” in the list. Used to track where module <n> is in the list sequence, during execution. During List creation, returns memory usage, up to 2040 instruction index units are allowed.

:STATUS? :ERRor?

:LABEL<0-31>

:GOTO LABEL<0-31>

:LOOP <+NRi>, LABEL<0-31> :DWELl <+NRf>

:TRIGger <t>, WAIT

Returns Script status of EXEC, IDLE, or STOP/FAULT. Returns: Status, Errors, Tag, & Instruction Index. 32 Labels can be defined. Forward and backward LABEL

references are allowed. GOTO LABEL<0-31>; List execution immediately continues at the referenced label. Jump <NRi+> times to LABEL<0-31>. Used to repeat a sequence of events. Repeat count +NRi is 1 to 16777215. Sets the dwell time, the period that LIST execution pauses, in module <n> for +NRf seconds.

1.0e-6 <= +NRf <= 2147.48 seconds. Module <n> waits for a trigger, <t> = a, b, c, or d, for Buss trigger

in’s, or fa to wait on the module’s Front Panel trigger in.

Tracking MUST be OFF during RAMPs

:RAMP

Ramp Generation Generate a CURRent RAMP from fIstart, to fIend Amps, in ftSec

:CURR fIstart, fIend, ftSec

Seconds. Note: Full scale excursions take about 100mSec, and are load dependent, smaller current excursions are proportional. Generate a VOLTage RAMP from fVstart, to fVend Volts, in ftSec

:VOLT fVstart, fVend, ftSec

seconds. Note: Full scale excursions take about 20mSec depending on type of load, smaller voltage excursions are proportional.

:VOLTCURR fVstart, Vend,

fIstart, fIend, ftSec :CURR GE fval, LABEL<0-31> :CURR LT fval, LABEL<0-31> :VOLT GE fval, LABEL<0-31> :VOLT LT fval, LABEL<0-31>

<filename> is case sensitive; a double quoted string, maximum 29 characters in length, no path/file

extension

is allowed.

Generate a VOLTage and CURRent RAMP from fVstart to fVend Volts, and from fIstart, to fIend Amps, in ftSec seconds.

Branch to LABEL<n> if the output current is ≥ to fval. Branch to LABEL<n> if the output current is < fval. Branch to LABEL<n> if the output voltage is ≥ to fval. Branch to LABEL<n> if the output voltage is < fval.

NOTE: ftSec is 0.1mS to 2147.48 seconds. (35.791 minutes) Any triggers that occur during a RAMP or DWELL command are ignored. In List mode, all relay operation should always be coordinated with the STATE command by using the OUTP:ISOL/SENSE:DEFault commands. If Tracking is ON, (OVP, OCP, UVP) their setting changes will automatically be included in the LIST commands for simple setpoint changes.

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The Tracking modes do NOT function in RAMP functions, and faults may be generated. Tracking modes must be turned off and OVP, OCP, and UVP set to proper values for the specific RAMP command, else faults may occur. After the RAMP command has completed, and new setpoints issued, Tracking may be then turned back on.

The average List/SCPI command that is compiled into a List executable takes from 1 to 4 instruction index units, and complex SCPI commands such as STATe 1, takes 16 instruction index units, because of relay, module power on, and setpoint sequencing. A voltage ramp takes 3 instruction index units. An OUTP:STAT 0 command takes 7 units.

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Command

Description

the

Sets the modules to be paralleled. Because only like modules can be paralleled valid

inputs are <2>, <5>, <7>, etc. The lowest number in the argument list is the address

slave modules. In a parallel configuration, only the Master module, 1002, will

3.16

DC SYSTEM SCPI COMMANDS

3.16.1

SYSTem :ERRor? :VERsion? :GROup :CATalog :PARallel? :SERies? :DEFine :PARallel <NR1>,…….,<NR1> :SERies <NR1>,…….,<NR1> :DELete <NR1> :DELETE:ALL

3.16.2

SYSTem

:ERRor?

:VERsion? :GROup :CATalog

:PARallel?

:SERies? :DEFine

SYSTEM SCPI C

System subsystem. Queries a 10 element Error Queue, for next error/event entry (first in, first out). Entries contain an error number and descriptive text. A return value of 0 indicates no error occurred; negative numbers are reserved by SCPI. The maximum return string length is 255 characters. All entries are cleared by the *CLS command. Returns Group subsystem Displays list of defined groups in the system. Returns the master address 1000+N1 followed by the modules N1,N2…Nn that make up the parallel group. Returns the master address 2000+N1 followed by the modules N1,N2…Nn that make up the series group. Creates a group of the specified type

SCPI

OMMAND SUMMARY

OMMAND REFERENCE

version that

instrument complies with.

:PARallel <n>,<n>, …

:SERies <n>,<n>, …

of the parallel-master module and the rest of the numbers are the address’s of the parallelprocess SCPI setpoint commands properly. The voltage and current set points for the parallel group will be set to zero, normal polarity, and the output relays will be open. For defaults, see CAL:INIT:xxxx commands.

Sets the specified modules into the series group. Because only like modules can be connected in series, valid inputs are <1002>, <1004>, etc. The lowest number in the argument list is the module address of the series-master module and the others are the address’s of the series-slave modules. In a series configuration, only the Master module, 2002, will process SCPI setpoint commands properly. The voltage and current set points for the parallel group will be set to zero, normal polarity, and the output relays will open. For defaults, see CAL:INIT:xx commands.

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Command

Description

Deletes the specified group. NR1 is 1021 for the parallel group that has the

:DELete <n>

:DELete:ALL

parallel-master module address of 21. <n> is 2003 for the series group that has the series-master module address of 3. Deletes any and all the groups in the RFP system

3.17

EXAMPLE: Program a module with no load at the output to 5 VDC @ 1A, and verify the output. // Use SYST:ERR? after each command to verify no programming errors.

// turn on the unit.

*CLS // clear the unit to its power-on default settings. *RST // reset the unit. OUTP<n>:ISOL 1 // set isolation relay closed OUTP<n>:SENS 1 // set sense relay closed OUTP<n>:STAT 1 // close output relay SOUR<n>:CURR 1.0 // program output current to 1.0 A. SOUR<n>:CURR? // confirm the output current setting (response: 1.0). SOUR<n>:VOLT 5.0 // program output voltage to 5.0 VDC. SOUR<n>:VOLT? // confirm the output voltage setting (response: 5.0). MEAS<n>:CURR? // measure the actual output current (response: ~ 0.0 with no load on output). MEAS<n>:VOLT? // measure the actual output voltage (response: ~ 5.0).

EXAMPLES OF USING THE SCPI COMMANDS

The following examples demonstrate programming a module to control and to readback the output using the SCPI commands. The maximum voltage and current output is dependent on the particular model. The examples list only the SCPI commands; the code required to send the commands is dependent on the type of language you are using (e.g., C or BASIC) and hardware.

EXAMPLE: Program a DC power supply (with no load at the output) to generate a Fault upon an overvoltage protection trip condition.

// Use SYST:ERR? after each command to verify no programming errors. // Turn on the unit.

*CLS // clear the error queue. *RST // reset the unit. OUTP<n>:STAT 1 // close output relay SOUR<n>:VOLT:PROT 12.5 // program the OVP trip point to 12.5 VDC. SOUR<n>:VOLT:PROT? // confirm the OVP trip point setting (response: 12.5). SOUR<n>:CURR 1.0 // program output current to 1.0 A. SOUR<n>:VOLT 12.0 // program output voltage to 12.0 VDC. SOUR<n>:VOLT 13.0 // program output voltage to 13.0 VDC - cause OVP trip!

// use the OUTP<n>:STAT? query to confirm that the unit faulted

off, and use the STAT<n>:MOD:FAUL? query to confirm which fault.

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EXAMPLE: Program a DC power supply (with no load at the output) to change its output voltage and current to 5 VDC @ 1A at the same time.

// Use SYST:ERR? after each command to verify no programming errors.

*CLS // clear the error queue. *RST // reset the unit. SOUR<n>:CURR 1 // program output current to 1.0 A. SOUR<n>:VOLT 5 // program output voltage to 5.0 VDC. OUTP<n>:STAT 1 // turn on the supply MEAS<n>:VOLT? // measure the actual output voltage (response: ~ 5. 0 depending on

timing).

MEAS<n>:CURR? // measure the actual output current (response: ~ 0. 0 with no load on

output).

MEAS<n>:VOLT? // measure the actual output voltage (response: 5.0).

EXAMPLE: Program DC power supply 32V Modules Channels 3, 4, & 5 for parallel operation, 10VDC, and 75A.

// Use SYST:ERR? after each command to verify no programming errors. // turn on the unit.

*CLS // clear error queue. *RST // reset modules. SYST:GRO:DEF:PAR 3,4,5 // parallel modules 3,4,5. Channel 3 is the master. SOUR1003:CURR 75 // set current to 75A SOUR1003:VOLT 10 // set voltage to 10V OUTP1003:STAT 1 // close output relays, and turn the supply on. MEAS1003:VOLT? // measure output voltage MEAS1003:CURR? // measure output current

EXAMPLE: Program DC power supply PS 33V Module Channel 3 Over Voltage, Over Current and Under Voltage Protection. // Use SYST:ERR? after each command to verify no programming errors.

*CLS // clear error queue. *RST // reset module. OUTP3:STAT 1 // close output relay, and turn supply on. SOUR3:CURR:PROT 6 // set OCP to 6A SOUR3:CURR 5 // set Current to 5A SOUR3:VOLT:PROT 21 // set OVP to 21 SOUR3:VOLT 20 // set Voltage to 20V SOUR3:UNDERVOLT:PROT 18 // set UVP to 18 MEAS3:VOLT? // measure output voltage MEAS3:CURR? // measure output current

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4.1

4.2

AC MODULE REMOTE PROGRAMMING

INTRODUCTION

The ReFlex Power™ AC power supply (ACPS) utilizes an Ethernet interface for remote control of all programming, readback, and configuration setup. The syntax of all SCPI commands implemented by the ReFlex Power™ system and documented in this manual, are either SCPI confirmed in the SCPI 1999.0 Specification, Volume 2: Command Reference, or they are customized commands not part of the SCPI definition but conform to SCPI syntax.

FEATURES AND FUNCTIONS

This section lists the features, programmable functions and readback functions of the ReFlex Power™ ACPS.

EATURES

• 16-bit programming and 16-bit readback of voltage, and current, and

• Programmable Over/Under Voltage protection with reset

• SCPI compliant command set

• User selectable Constant-Voltage/Constant-Current mode, with reset

• Field-upgradeable firmware via Ethernet

• Soft calibration

frequency (and phase, if in a phase group)

ROGRAMMABLE FUNCTIONS

• Output voltage, current, and frequency (and phase if in a phase group)

• Soft limits for voltage and current

• Over Voltage and Under Voltage protection

• Programmable Over Current trip point, response time and delay time

• Programmable Inrush Over Current trip point

• Output enable/disable

• Maskable fault interrupt

• Full calibration

• Programmable voltage range

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• Programmable configuration: stand alone, parallel or phase group

EADBACK FUNCTIONS

• Measure voltage, current, frequency, and phase

• Voltage, current and frequency settings (phase, if in a phase group)

• Soft voltage and current limits

• Over/Under Voltage and Over Current protection setting

• Status and Accumulated Status registers

• Programming error codes

• Fault codes

• Manufacturer, power supply model, serial number, and firmware

version identification

4.3

POWER-ON CONDITIONS

Table 4-1 presents remote power-on conditions for the AC Power Supply.

Table 4-1. Remote Power-On Conditions

Condition Default

Voltage 0 Volts (initial power–on voltage). Also see CAL<n>:INIT:VOLT Current 7.140 Amps (initial power–on current). Also see CAL<n>:INIT:CURR Frequency 60 Hz

OVP Trip Voltage Output OFF

Parallel No Modules Paralleled Voltage Range Low Phase 0.0 degrees, stand alone mode

OCP Trip Current

154 V (110% of Module Maximum Voltage, which is 140 V) +7% (initial power– on OVP). See CAL<n>:INIT:VOLT:PROT

7.42 A (Maximum current 102% of the full scale current, which is 7 A for low voltage range)

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4.4

ERROR CODES

The error codes exist in the range of [-32768, 32767]. SCPI reserves the negative error codes and zero, while the error codes greater than zero and in the range of -399 to -300 are defined as device-specific. The negative error codes in the range of -499 to -100 are standardized errors that are reported in the Standard Event Status Register and the Error/Event Queue. Issue the SYSTem:ERRor? query to read the error codes, which are stored in the Error/Event Queue.

4.4.1 SCPI

The following error codes are defined by the SCPI Standard 1999.0, and are supported by the ReFlex Power™ ACPS:

0, No error

The error queue is empty.

-102, Syntax error

An unrecognized command or data type was encountered.

-200, Execution error

This is a generic error when a specific error could not be identified. An execution error could be the result of the following condition:

A command could not be executed due to the current operational condition.

-222, Range Error

A <program data> element being out-of-range; for example, programming 150V, when the maximum allowed value is 135V.

-350, Queue overflow

ERROR CODES

NOTE: Some SCPI commands will generate replies as follows, which can be viewed with the SYST:ERR? command:

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DESCRIPTION

Unable to change the Voltage Range Hardware Prohibited, or

Unable to change the Voltage Range Output Enabled or Aux Relay Closed

Unable to open Module Data file - file system problem, or

5 POINT CAL FILE WRITING ERROR, or

CAL FILE WRITING ERROR

4.4.2 E

RROR/EVENT QUEUE

User tries to change the voltage range with

SOUR<n>:VOLT:RANGE <bool>

User tries to store the module data information and calibration files with

CAL<n>:STORE

The Error/Event Queue is a FIFO (First-In-First-Out) buffer for storing detected errors. When the queue is read with the SYSTem:ERRor? query, the error that was detected first will be read first, and the error that was detected last will be read last. When all errors are read, the message 0, “No error” will be returned. Up to 10 errors can be stored before overflow would occur. Overflow will result in error code -350, “Queue overflow” overwriting the last entry. All subsequent errors will be ignored until the queue is read, and space is again available.

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Command

Description

4.5

COMMON SCPI COMMANDS

The following commands are common to all SCPI instruments, and are mandatory for conformance to IEEE-488.2. In the following table, the ReFlex Power™ ACPS will be defined as the “device” on the bus.

Clear Status Command: Clears all status reporting data structures, including the Standard Event

*CLS

*IDN<n>?

*OPC<n>?

*RST<n>

Status Register, Protection Event Status Register, and Error/Event Queue. Also, the Status Byte Register becomes cleared as a result of the reporting registers being cleared. Enable-mask registers are not cleared. Returns the device identification as an ASCII string. Response: <Manufacturer>,<model>,<serial number>,<firmware version> Example: ELGAR,RFP-A301K-875-1G00,1234A56789,3.100.001 Operation Complete Query: Causes an ASCII “1” to be placed in the output queue when all previous operations are complete. This Command only functions properly in FW Ver. 3 or newer. In previous FW Versions, hard coded time delays in host programming were mandatory. When AC Modules are in a group, and the slaves are directly commanded, *OPC<n>? will return a “0” indicating that the previous command has been executed but not applied. The Group Master then needs to be commanded, which will cause a group synchronous trigger to be issued, causing the slave module(s) to apply the new setting.

Reset Command: Resets the device (module <n>) to the following state:

Output voltage set to zero. Output isolation and remote sense relays are opened. Settings of output voltage, current, frequency, phase, Over Current shutdown time delay and Output configuration are reset to Power On default values. Clears all status reporting data structures, including the Protection Event Status Register and Standard Event Status Register; Status Byte Register is cleared when reporting registers are cleared. Enable registers and Error/Event Queue are not cleared.

*TST<n> *TST<n>?

Initiate self test Returns the results from the last self test the module performed. Returns a decimal value, convert

to Hex because more than one bit can be set. See Table 2-6

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4.6

CALIBRATION SCPI COMMANDS

CAUTION

Before attempting to execute any of the ACPS calibration commands, follow the calibration procedures in the ReFlex Power™ Operation Manual (M380056-01), AC Section. If calibration is not performed properly, functional problems could arise, preventing the ReFlex Power™ ACPS from operating properly. Qualified personnel who are appropriately trained to deal with attendant hazards must perform calibration.

4.6.1 CALIBRATION

CALibration<n> :MEASure

:IADC :OFFSET

:CALCulate :OFFSET? :VADC :OFFSET :CALC :OFFSET? :VLOCAL :OFFSET? :ILOCAL :OFFSET? :VREMOTE :OFFSET? :OFFSET :CALC

:CALPOTS :GAIN [NRi] :START :CURR <NRf> :CALC :GAIN? :CALMON <NRi> :CALMON? :OFFSET :CALC :OFFSET? :A2D? :UNLock “PASSWORD” :STORe :LOCK

:OUTPut

:DCLOOP <bool>

SCPI C

OMMAND SUMMARY

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:DAC :OFFSET :CALC :OFFSET? :COUNTS :POINT1 <NRf> :POINT2 <NRf> :LDF :GAIN? :CALC :VOLTage :COUNTS <NRi> :PROTection :COUNTS <NRi> :FIVEPOINT<1-5> <NRf> :FIVEPOINT? :CALC :CURRENT :COUNTS <NRi> :PROTection :COUNTS <NRi> :FIVEPOINT<1-5> <NRf> :FIVEPOINT? :CALC :FREQ :CURR :DEFAULT :CURR<1-7> <NRf> :CALC :POWer :CALibrate <NRi> :CALC

:CALC?

:INITial

:CURRent <0+NRf>

:PROTection <NRf>

:PROTection? :CURRent? :VOLTage <0+NRf> :PROTection <NRf> :PROTection? :RANGE <bool> :RANGE?

:VOLTage?

:UNDERVOLTage

:PROTection <NRf>

:PROTection?

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:PHASe <NRi> :PHASe? :FREQuency <NRi>

:FREQuency? :DEFault

:MODule :LASTCAL <Date> :LASTCAL? :NEXTCAL <Date> :NEXTCAL?

4.6.2 CALIBRATION

Command Description

CALibration<n> :MEASure :IADC :OFFSET:CALC :OFFSET? :VADC :OFFSET:CALC :OFFSET? :VLOCAL :OFFSET? :ILOCAL :OFFSET? :VREMOTE :OFFSET? :OFFSET:CALC :CALPOTS :GAIN <NRi> :START :CURRent <NRf> :CALC :GAIN? :CALMON <NRi> :CALMON? :OFFSET:CALC :OFFSET? :A2D?

:UNLock <string> :STORE

:LOCK :OUTPUT

:DCLOOP <bool>

SCPI C

OMMAND REFERENCE

Calibration subset of SCPI command sets

Current ADC Calibrate the current ADC offset. Query the offset of the current ADC Voltage ADC Calibrate the Voltage ADC offset. Query the offset of the Voltage ADC Local Voltage Query the offset of the local Voltage Local current Query the offset of the local current Remote Voltage Query the offset of the Remote Voltage Calibrate the offset of the VLOCAL,ILOCAL and VREMOTE Analog gain and offset pots This is an 8 bit value ( 0 to 255) Start the gain calpot calibration Enter the floating point AC current value Calibrate the gain calpot Query the gain calpot set value. Set the MUX for the current A2D Query current A2D MUX Calibrate the offset pot Query the set point of the offset pot Query current A2D value Unlock the calibration data file; enables storage of the

calibration constants. The enable string is <“6867”>. Store the calibration or module data Lock the files

Set the DCLOOP on or off. ON or 1 = turn on the DCLOOP and OFF or 0 = Turn off the DCLOOP

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Frequently Asked Questions

User Manual