AMETEK SFA Series Ethernet Programming User Manual

Download

SG Series IEEE

488.2/RS232 and

Ethernet Options

Programming Manual

M550129-03 Rev K 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. Sorensen is a trademark owned by 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

SG Series IEEE 488.2/RS232 and Ethernet Options 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

STEPS 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

December 2014 Revision K

Part Number

M550129-03

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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Hazardous voltages may be present when covers are removed. Qualified

The equipment used contains ESD sensitive parts. When installing

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.

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

equipment, follow ESD Safety Procedures. Electrostatic discharges might cause damage to the equipment.

SAFETY SYMBOLS

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Product Family: SG Series IEEE 488.2/RS232 and Ethernet Options

Warranty Period: Five Years

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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CONTENTS

SECTION 1 OVERVIEW ....................................................................... 1-1

1.1 Introduction ..................................................................................................... 1-1

1.2 IEEE 488.2 GPIB and RS232 Options ............................................................ 1-1

1.3 Ethernet Option .............................................................................................. 1-1

SECTION 2 IEEE 488.2 GPIB/RS232 FEATURES, FUNCTIONS AND

SPECIFICATIONS ...................................................... 2-1

2.1 Introduction ..................................................................................................... 2-1

2.2 Features ......................................................................................................... 2-1

2.3 Programmable Functions ................................................................................ 2-1

2.4 Readback Functions ....................................................................................... 2-2

2.5 Specifications ................................................................................................. 2-2

2.5.1 Programming Resolution .................................................................. 2-2

2.5.2 Programming Accuracy .................................................................... 2-2

2.5.3 Readback Resolution ........................................................................ 2-2

2.5.4 Readback Accuracy .......................................................................... 2-2

SECTION 3 IEEE 488.2 GPIB/ RS232 CONFIGURATIONS AND REMOTE

PROGRAMMING ........................................................ 3-1

3.1 Rear Panel ..................................................................................................... 3-1

3.2 RS232 Setup Procedure ................................................................................. 3-3

3.3 IEEE 488.2 GPIB Setup Procedure ................................................................ 3-4

3.3.1 Configuration Switch ......................................................................... 3-5

3.3.2 Remote/Local Selection .................................................................... 3-6

3.3.3 Power-On GPIB Service Request (PON SRQ) Selection .................. 3-8

3.3.4 Shield Ground ................................................................................... 3-8

3.3.5 Address Selection ............................................................................. 3-8

3.4 Remote Programming Via RS232 ................................................................... 3-9

SECTION 4 ETHERNET INTERFACE FEATURES, FUNCTIONS AND

SPECIFICATIONS ...................................................... 4-1

4.1 Introduction ..................................................................................................... 4-1

4.1.1 Minimum System Requirements ....................................................... 4-1

4.2 Features and Functions .................................................................................. 4-2

4.2.1 Features ........................................................................................... 4-2

4.2.2 Programmable Functions .................................................................. 4-2

4.2.3 Readback Functions ......................................................................... 4-3

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4.3 Specifications ................................................................................................. 4-3

4.3.1 Ethernet/LAN Configuration .............................................................. 4-3

4.3.2 Ethernet Configuration Factory Defaults ........................................... 4-3

4.3.3 Programming Resolution .................................................................. 4-4

4.3.4 Programming Accuracy .................................................................... 4-4

4.3.5 Readback Resolution ....................................................................... 4-4

4.3.6 Readback Accuracy .......................................................................... 4-5

SECTION 5 ETHERNET CONFIGURATION AND REMOTE

PROGRAMMING ......................................................... 5-1

5.1 Rear Panel ..................................................................................................... 5-1

5.2 Ethernet Setup Procedure .............................................................................. 5-3

5.2.1 Network Setup Using DHCP ............................................................. 5-4

5.2.2 Network Setup Using Auto-IP ........................................................... 5-5

5.2.3 Network Setup Using the Serial COM Port ....................................... 5-6

5.2.4 Network Setup Using Web Browser .................................................. 5-7

5.2.5 Configuration Switch ......................................................................... 5-7

5.2.6 Remote/Local Selection .................................................................... 5-9

5.3 External User Control Signal Connector ....................................................... 5-10

5.4 Programming/Communication Via Ethernet .................................................. 5-13

5.4.1 Raw Socket Interface ..................................................................... 5-13

5.4.2 VXI-11 Protocol .............................................................................. 5-13

5.4.3 Web Server .................................................................................... 5-13

5.5 Ethernet Web Pages, Overview .................................................................... 5-14

5.5.1 HOME ............................................................................................ 5-16

5.5.2 IP CONFIGURATION ..................................................................... 5-17

5.5.3 SETTINGS ..................................................................................... 5-21

5.5.4 STATUS ......................................................................................... 5-24

5.5.5 POWER .......................................................................................... 5-26

5.5.6 PRESETS ...................................................................................... 5-28

5.5.7 SECURITY ..................................................................................... 5-30

SECTION 6 IEEE 488.2 GPIB/RS232/ETHERNET AND SCPI COMMAND

OPERATION ............................................................... 6-1

6.1 Introduction .................................................................................................... 6-1

6.2 Register Definitions ........................................................................................ 6-1

6.2.1 SCPI Status Byte .............................................................................. 6-1

6.2.2 Standard Event Status Register (ESR) ............................................. 6-3

6.2.3 Protection Condition and Protection Event Status Register .............. 6-3

6.2.4 Operation Status and Questionable Status Registers ....................... 6-5

6.2.5 Error/Event Queue............................................................................ 6-5

6.2.6 Serial Poll Operation ......................................................................... 6-8

6.3 Ethernet LXI™, VXI-11, and SCPI Conformance Information ......................... 6-8

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6.3.1 Parameter Definitions ....................................................................... 6-8

6.3.2 Units ................................................................................................. 6-9

6.3.3 Conventions...................................................................................... 6-9

6.3.4 Queries ............................................................................................. 6-9

6.4 IEEE 488.2 Common Command Subsystem ................................................ 6-10

6.5 SOURCE SCPI Command Subsystem ......................................................... 6-12

6.5.1 SOURCE SCPI Command Summary.............................................. 6-12

6.5.2 SOURCE SCPI Command Reference ............................................ 6-13

6.5.3 RAMP FUNCTION .......................................................................... 6-16

6.6 MEASURE SCPI Command Subsystem ....................................................... 6-17

6.6.1 MEASURE SCPI Command Summary ........................................... 6-17

6.6.2 MEASURE SCPI Command Reference .......................................... 6-17

6.7 OUTPUT SCPI Command Subsystem .......................................................... 6-18

6.7.1 OUTPUT SCPI Command Summary .............................................. 6-18

6.7.2 OUTPUT SCPI Command Reference ............................................. 6-18

6.8 STATUS SCPI Command Subsystem .......................................................... 6-19

6.8.1 STATUS SCPI Command Summary ............................................... 6-19

6.8.2 STATUS SCPI Command Reference .............................................. 6-20

6.9 SYSTEM SCPI Command Subsystem .......................................................... 6-21

6.9.1 SYSTEM SCPI Command Summary .............................................. 6-21

6.9.2 SYSTEM SCPI Command Reference ............................................. 6-22

6.10 HTRIGGER SCPI Command Subsystem ..................................................... 6-25

6.10.1 HTRIGGER SCPI Command Summary .......................................... 6-25

6.10.2 HTRIGGER SCPI Command Reference ......................................... 6-25

6.11 TRIGGER SCPI Command Subsystem ........................................................ 6-26

6.11.1 TRIGGER SCPI Command Summary ............................................. 6-26

6.11.2 TRIGGER SCPI Command Reference ........................................... 6-26

6.12 CALIBRATION SCPI Command Subsystem ................................................. 6-27

6.12.1 CALIBRATION SCPI Command Summary ..................................... 6-27

6.12.2 CALIBRATION SCPI Command Reference .................................... 6-29

6.13 SGI-Unique Commands ................................................................................ 6-32

6.13.1 Restrictions on Sequence Programming: ........................................ 6-32

6.13.2 SGI SOURCE SCPI Command Subsystem .................................... 6-34

6.13.3 SGI PROGRAM SCPI Command Subsystem ................................. 6-35

6.13.4 SGI MEASURE SCPI Command Subsystem .................................. 6-42

6.13.5 SGI HTRIGGER SCPI Command Subsystem ................................. 6-42

6.14 Examples of Using the SCPI Commands ..................................................... 6-43

6.14.1 VI Mode Example ........................................................................... 6-43

6.14.2 OVP Setup Example ....................................................................... 6-43

6.14.3 Trigger Example ............................................................................. 6-44

6.14.4 Hardware Trigger Example ............................................................. 6-45

6.14.5 Ramp V Example ............................................................................ 6-45

6.14.6 Ramp I Example ............................................................................. 6-45

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6.14.7 Ramp V Example 2......................................................................... 6-46

6.14.8 Power On INIT Example ................................................................. 6-46

6.14.9 Sequence Creation and Execution Examples ................................. 6-47

SECTION 7 CALIBRATION .................................................................. 7-1

7.1 Introduction .................................................................................................... 7-1

7.2 Setup for Calibration ....................................................................................... 7-2

7.3 Voltage Programming Calibration (Ethernet) .................................................. 7-3

7.4 Voltage Program Gain/Offset and Measurement Readback Calibration (Ethernet, GPIB) 7-5

7.5 Overvoltage Protection Programming Calibration (Ethernet, GPIB) ................ 7-6

7.6 Current Programming Calibration (Ethernet) .................................................. 7-7

7.7 Current Programing gain/offset and Measurement Readback Calibration

(Ethernet, GPIB) ...................................................................................................... 7-9

7.8 ANALOG PROGRAM ADJUSTMENT .......................................................... 7-11

7.8.1 Adjustment for Current Mode .......................................................... 7-14

7.8.2 Adjustment for Voltage Mode ......................................................... 7-15

SECTION 8 SCPI STATUS IMPLEMENTATION ................................... 8-1

List of Tables

Table 3-1. Remote/Local Switch ................................................................................. 3-6

Table 3-2. Remote Power-on Conditions .................................................................... 3-7

Table 5-1. Remote/Local Switch ................................................................................. 5-9

Table 5-2. Remote Mode Power-on Conditions ......................................................... 5-10

Table 5-3. External User Control Signal Connector Pinout – Ethernet only ............... 5-11

Table 6-1. SCPI Status Byte ....................................................................................... 6-2

Table 6-2. Standard Event Status Register ................................................................. 6-3

Table 6-3. Protection Condition and Event Status Registers ....................................... 6-4

Table 6-4. SCPI Error Codes ...................................................................................... 6-5

Table 6-5. System Fault Registers ............................................................................ 6-24

List of Figures

Figure 3-1. SG Unit with GPIB/RS232 Option ............................................................. 3-1

Figure 3-2. SG Unit with GPIB/RS232 Option ............................................................. 3-2

Figure 3-3. SG Unit with RS232 only .......................................................................... 3-2

Figure 3-4. RS232 Communications Cable Pinout ...................................................... 3-3

Figure 3-5. SGA Configuration Switch for GPIB .......................................................... 3-5

Figure 3-6. SGI 8-pin Configuration Switch for GPIB or Ethernet ................................ 3-5

Figure 3-7. SGI 4-pin Configuration Switch for Ethernet .............................................. 3-5

Figure 3-8. RS232 Rear Panel RJ-type 6P6C Connector Pinout .................................. 3-9

Figure 5-1. SG Rear Panel with Ethernet/RS232 Options ........................................... 5-1

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Figure 5-2. SG Rear Panel with Ethernet/RS232 Options ........................................... 5-2

Figure 5-3. SGI Rear Panel with Ethernet/RS232 Options (4-pin Config Switch shown) 53

Figure 5-4. Power Supply’s Home Page (SGI shown here) ......................................... 5-5

Figure 5-5. SG 8-pin Configuration Switch for the Ethernet Option .............................. 5-8

Figure 5-6. SG 4-pin Configuration Switch for the Ethernet Option .............................. 5-8

Figure 5-7. External User Connector Pinout (10-pin Molex, rear panel view)............. 5-11

Figure 5-8. Example of Open-Collector, TTL Input, and Relay Output Circuits .......... 5-12

Figure 5-9. SGI Banner and Tabs ............................................................................. 5-14

Figure 5-10. SGA Banner and Tabs .......................................................................... 5-14

Figure 5-11. Login Window ....................................................................................... 5-15

Figure 5-12. SGI Home Page .................................................................................... 5-16

Figure 5-13. SGI IP Configuration Page .................................................................... 5-17

Figure 5-14. Settings Page ........................................................................................ 5-21

Figure 5-15. Alert Message for Save Settings ........................................................... 5-23

Figure 5-16. Status Page .......................................................................................... 5-24

Figure 5-17. SGI Power Page (not in SGA) ............................................................... 5-26

Figure 5-18. SGI Presets Page (not in SGA) ............................................................. 5-28

Figure 5-19. Security Page ........................................................................................ 5-30

Figure 5-20. Add New User Window from Security Page .......................................... 5-31

Figure 5-21. Edit Existing User Window from Security Page ..................................... 5-32

Figure 6-1. Power Supply Output for Example 1 ....................................................... 6-48

Figure 6-2. Power Supply Output for Example 2 ....................................................... 6-49

Figure 6-3. Power Supply Output for Example 3 ....................................................... 6-50

Figure 6-4. End-of-Sequence Pause for Example 4 .................................................. 6-52

Figure 6-5. Power Supply Output for Example 5 ....................................................... 6-56

Figure 6-6. Power Supply Output for Example 6 ....................................................... 6-57

Figure 6-7. Power Supply Output for Example 7 ....................................................... 6-60

Figure 7-1. Potentiometer Locations .......................................................................... 7-12

Figure 7-2. Precision Current Shunt ........................................................................... 7-13

Figure 7-3. Remote Current Programming Using 0-5 VDC or 0-10 VDC Voltage Source

................................................................................................................................... 7-14

Figure 7-4. SGI Front Panel ....................................................................................... 7-14

Figure 7-5. Remote Voltage Programming Using 0-5 VDC or 0-10 VDC Voltage Source

................................................................................................................................... 7-15

Figure 7-6. Analog Control Connector (J1) ................................................................. 7-16

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1.1

1.2

OVERVIEW

INTRODUCTION

This manual provides instructions for full remote programming control and monitoring from a computer, for your SG series high power DC power supply. For easy navigation to the applicable instructions, this manual separates GPIB and RS232 setup instructions from Ethernet setup instructions. The instructions then converge where they are common to all three interface options. See Sections 1.2 and 1.3 for orientation. Use this programming manual in conjunction with your SGA or SGI Operation manual.

IEEE 488.2 GPIB AND RS232 OPTIONS

If you are using the IEEE 488.2 GPIB or RS232 interface, go to:

• Section 2 for features, functions and specifications,

SECTION 1

• Section 3 for configuration and remote programming setup

• Section 6 for SCPI commands and definitions

• Section 7 for calibration procedures

• Section 8 for SCPI Status Implementation

1.3

ETHERNET OPTION

If you are using an Ethernet interface, go to:

• Section 4 for features, functions, and specifications

• Section 5 for configuration and for programming setup of your SG power

supply via the Ethernet

• Section 6 for SCPI commands and definitions

• Section 7 for calibration procedures

• Section 8 for SCPI Status Implementation

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Overview SG Series Programming

1-2

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2.1

2.2

SECTION 2

IEEE 488.2 GPIB/RS232

FEATURES, FUNCTIONS

AND SPECIFICATIONS

INTRODUCTION

This section introduces the features, functions and specifications for IEEE 488.2 GPIB and RS232.

FEATURES

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

• Programmable overvoltage protection with reset

• IEEE 488.2 and SCPI compliant command set

• User selectable Constant-Voltage/Constant-Current or Foldback mode,

with reset

• Voltage Ramp and Current Ramp functions

• Field-upgradable firmware via RS232

• Soft calibration

• Rear panel IEEE 488.2 and RS232 control interface

• Rear panel configuration switch

2.3

PROGRAMMABLE FUNCTIONS

• Output voltage and current

• Soft limits for voltage and current

• Overvoltage protection

• Output enable/disable

• Maskable fault interrupt

• Hold and trigger

• Full calibration

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IEEE/GPIB Features, Functions, Specifications SG Series Programming

2.4

READBACK FUNCTIONS

• Actual measured voltage and current

• Voltage and current settings

• Soft voltage and current limits

• Overvoltage protection setting

• Status and Accumulated Status registers

• Programming error codes

• Fault codes

• Manufacturer, power supply model, and firmware version identification

2.5

SPECIFICATIONS

Specifications are subject to change without notice. Refer to your SGA or SGI power supply operation manual for effects of line regulation, load regulation, and temperature on accuracy specifications.

2.5.1

2.5.2

2.5.3

2.5.4

Programming Resolution

Voltage: 0.002% of full scale Current: 0.002% of full scale Overvoltage Protection: 0.002% of full scale (full scale is 110% of max

output voltage.)

Programming Accuracy

Voltage: ± ( 0.1% of maximum output voltage) Current: ± ( 0.4% of maximum output current)* Overvoltage Protection: ± (1.0% of max output voltage) * After 30 minutes operation with fixed line, load, and temperature.

Readback Resolution

Voltage: ± 0.002% of full scale Current: ± 0.002% of full scale

Readback Accuracy

Voltage: ± ( 0.15% of full scale output voltage) Current: ± ( 0.4% of full scale output current)* * After 30 minutes operation with fixed line, load, and temperature.

2-2

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3.1

IEEE 488.2 GPIB/ RS232

CONFIGURATIONS

AND REMOTE PROGRAMMING

REAR PANEL

This section provides illustrations of the SG power supply’s rear panel layout, which differs among the SG models. Figure 3-1, Figure 3-2 and Figure 3-3 are examples. Regardless of the layout, the component functions are common across all models, and those that are pertinent to the RS232 and IEEE 488.2 GPIB options are described here.

SECTION 3

1 – RS232 (RJ-type 6P6C) connector 2 – Configuration Switch (may be 8-pin or 4-pin) - for correct settings see

Section 3.3.1.

3 – IEEE 488.2 GPIB connector

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Figure 3-1. SG Unit with GPIB/RS232 Option

3-1

IEEE/RS232 Configuration and Remote Programming SG Series Programming

Figure 3-2. SG Unit with GPIB/RS232 Option

1 – RS232 (RJ-type 6P6C) connector 2 – Configuration Switch (may be 8-pin or 4-pin) - for correct settings see

Section 3.3.1

3 – IEEE 488.2 GPIB connector

Figure 3-3. SG Unit with RS232 only

1 – RS232 (RJ-type 6P6C) connector 2 – Configuration Switch (may be 8-pin or 4-pin). For correct settings see

Section 3.3.1

3-2

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SG Series Programming IEEE/RS232 Configuration and Remote Programming

3.2

RS232 SETUP PROCEDURE

This section provides a quick reference for the configuration requirements for RS232. Refer to Sections 3.3.1 and 3.3.2 for detailed information on the rear panel configuration switches.

Parameter Setting Notes

Baud Rate SGA models: Fixed, 19200 The baud rate for SGI models is

SGI models: Selectable, 2400 to 19200

Data Bits 8 Stop Bits 1 Parity None

Flow Control None Incoming Termination Character Outgoing Termination Character(s)

CR (Carriage Return): HEX, 0x0d (DEC, 13) CR LF (Carriage Return and Line Feed): HEX, 0x0d 0x0a (DEC, 13 10)

selectable through the front panel using the Remote Menu; refer to Section 3.8.11 of the SGI Operation Manual, M550221-01.

Selectable using SCPI command, SYST:NET:TERM; refer to Section 6.9.2.

1. Build an RS232 communications cable per the pinout description illustrated in Figure 3-4 (with crossover of signals Rx/Tx and CTS/RTS):

RJ-type 6P6C Plug

Terminal

1 2 2 7 3 No Connection 4 5 5 3 6 8

D-Subminiature 9-Pin Connector

Female Socket

Figure 3-4. RS232 Communications Cable Pinout

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IEEE/RS232 Configuration and Remote Programming SG Series Programming

2. Set the rear panel Remote/Local switch to Remote (On or 1).

3. Connect power to the unit and turn on the unit.

4. SGA: skip this step and go to the next step. SGI: From the Home menu page 3, press (F1) to enter the Remote menu. Using the up-down arrows of the NAVPAD (see SGI Operation Manual) change the baud rate for RS232 to 19200.

5. Use one of the available programs for serial communication, such as MS HyperTerminalTM, and set the RS232 baud rate to 19200, 8 data bits, no parity, 1 stop bit, and no flow control.

If you choose to use MS HyperTerminalTM:

a. After inputting the above parameters, in the HyperTerminalTM

window click the disconnect icon and then the properties icon. b. In the properties window select the Settings tab. c. In the Settings window click the ASCII Setup button. d. In the ASCII Setup window in the ASCII Sending section, check

“Echo typed characters locally” and in the ASCII Receiving

section, check “Append line feeds to incoming line ends.” Leave

all other check boxes in their default state.

6. Establish communication.

7. Test the communication interface by issuing the *IDN? Command. This returns the supply’s model and serial numbers, and software version(s), as well as the last calibration date, and does not affect the output of the supply. (If using SGI, navigate to the INFO page of the SGI unit’s front panel display to verify).

3.3

IEEE 488.2 GPIB SETUP PROCEDURE

1. Set the rear panel Local/Remote switch to Remote (On or 1).

2. SGA: select the GPIB address using the rear panel DIP switches. SGI: set the GPIB address via the front panel menu (Refer to SGI Operation manual).

3. Connect GPIB cable from the controlling computer to the power supply. NOTE: If operating in an inherently noisy environment, e.g., high RF or other radiated emissions, a double-shielded GPIB cable is recommended.

4. Connect power to the unit and turn on the unit.

5. Using a GPIB communication software, test the communication interface by issuing the *IDN? Command. This returns the supply’s model and serial numbers, and software version(s), as well as the last calibration date, and does not affect the output of the supply. (If using SGI, navigate to the INFO page of the SGI unit’s front panel display to verify).

3-4

M550129-03 Rev

SG Series Programming IEEE/RS232 Configuration and Remote Programming

3.3.1

Configuration Switch

The DIP switch (may be 8-pin or 4-pin) is accessible from the rear panel to configure the supply for your particular system and application. The following figures show the configuration, as set up in Section 3.2, and with GPIB address set to five (5) for the SGA. In the SGI only Remote/Local position is used, addressing is done through the front panel menu (See SGI operation manual).

Note: There is one of two types of DIP switches: toggle or rocker. For toggle switches, the shading indicates the position of the toggle switch.

For rocker switches, the shading indicates the depressed side.

Figure 3-5. SGA Configuration Switch for GPIB

Figure 3-6. SGI 8-pin Configuration Switch for GPIB or Ethernet

Figure 3-7. SGI 4-pin Configuration Switch for Ethernet

M550129-03 Rev K 3-5

IEEE/RS232 Configuration and Remote Programming SG Series Programming

Switch

3.3.2

Remote/Local Selection

Set the rear panel Remote/Local switch to select remote or local operation.

Remote ON switch (rocker) is top depressed. Table 3-1. Remote/Local Switch

Position

OFF

* In the ON position, the power hardware and GPIB card initialize

to the remote state at power-on. When in remote operation, the front panel control remains

disabled regardless of the state of the GPIB interface REN (Remote ENable) line or the GTL (Go To Local) command.

To revert to front panel control, use the special command SYST:LOCAL <on/off>.

Powering up in remote mode will result in the operating conditions described in Table 3-2.

Remote operation selected. * Local operation selected, and front panel control is enabled.

NOTE: Unit will switch to remote operation upon issuing the first GPIB or RS232 non-query command.

Description

3-6

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SG Series Programming IEEE/RS232 Configuration and Remote Programming

Table 3-2. Remote Power-on Conditions

Condition Default

0 Volts (initial from factory power-on voltage); otherwise,

Voltage

Current

Soft Voltage Limit

last value saved by SCPI command. See CAL:INIT:VOLT 0 Amps (initial from factory power-on current); otherwise, last value saved by SCPI command. See CAL:INIT:CURR

Model maximum voltage *

Soft Current Limit

OVP Trip Voltage

Delay 0.5 seconds Foldback Protection OFF (non-configurable) Output Hold OFF Unmask NONE

Service Request Capability

Model maximum current * Model maximum voltage +10% (initial from factory power-

on OVP); otherwise, last value saved by SCPI command. See CAL:INIT:VOLT:PROT

ON ** See CAL:MOD:POWERON

OFF

* User-programmable temporary limit (reverts to power-on defaults after power

cycle or Reset command is issued).

** User-selectable.

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IEEE/RS232 Configuration and Remote Programming SG Series Programming

3.3.3

3.3.4

3.3.5

Power-On GPIB Service Request (PON SRQ) Selection

Set the rear panel PON SRQ switch to ON to cause a GPIB service request to be sent to the computer controller when the supply is turned on.

POWER-ON GPIB SERVICE REQUEST (PON SRQ) SWITCH

Switch Position Description

ON Power-On SRQ selected

OFF No Power-On SRQ selected

Refer to your specific GPIB controller card manual for further details on serial polling.

Shield Ground

Connects GPIB cable shield to chassis ground.

Address Selection

The address selection for a unit is the GPIB address of that device (1-30). SCPI reserves channel 0 as the global channel to address all channels.

The SGA address selection is binary with switch A0 as the LSB, and with switch A4 as the MSB. The rear panel switch illustration in Section 3.3.1 shows the address selection 00101 in binary (5 decimal).

The SGI address is selected and enabled from a list in the Remote menu. See SGI Operation manual for more details on Remote menu, Navigation and Editing.

ADDRESS SWITCHES

Switch Position Description

ON 1

OFF 0

3-8

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SG Series Programming IEEE/RS232 Configuration and Remote Programming

3.4

REMOTE PROGRAMMING VIA RS232

The RS232 interface operates at fixed 19.2K baud for SGA and is selectable from 2400 to 19.2K baud for the SGI, with 8 data bits, no parity, and 1 stop bit.

All commands are supported at the RS232 interface with the exception of the Service Request (SRQ) function, which is a GPIB-specific function requiring the dedicated Service Request line of the IEEE 488.2 interface. In this case, the SRQ function has no effect. The RS232 interface is accessible through the rear panel RJ-type 6P6C (6-pin) connector (Figure 3-8), labeled RS232 on the power supply’s rear panel (see Figure 3-1, Figure 3-2 and Figure 3-3).

Figure 3-8. RS232 Rear Panel RJ-type 6P6C Connector Pinout

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IEEE/RS232 Configuration and Remote Programming SG Series Programming

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M550129-03 Rev

4.1

ETHERNET INTERFACE

FEATURES, FUNCTIONS AND

SPECIFICATIONS

INTRODUCTION

This section covers the Remote Programming Ethernet Interface Option for the SG series power supplies. This optional configuration enables you to operate your Sorensen power supply from a computer via Ethernet IEEE-

802.3 or RS232 communication protocols, or with SCPI-compatible language, allowing full remote programming control and monitoring of your power supply.

An important point is that this Ethernet option is Instrumentation) class C compliant. LXI™ is an instrumentation platform based on industry-standard Ethernet technology designed to provide ease of integration by modularity, flexibility and performance.

™ (LAN eXtensions for

SECTION 4

4.1.1

M550129-03 Rev K

Minimum System Requirements

The minimum software and equipment requirements to operate your Sorensen Ethernet product depend on whether it is connected directly to your PC or connected to the Internet or to a Local Area Network (LAN).

PC C

ONNECTION

To operate your Sorensen product with Ethernet option connected directly to a PC (no Internet or LAN connection), you will need:

• Pentium-based laptop or desktop computer running Microsoft Windows XP (or better)

• Ethernet based Network Interface Card (NIC) or built-in port capable of 10/100 MBit operation

• CAT 5 cable Ethernet crossover cable

• Microsoft Internet Explorer version 6.0 or later

• Sun Microsystems Java Runtime Environment

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Ethernet Features, Functions and Specifications SG Series Programming

4.2

NTERNET OR

To operate your Sorensen Ethernet product connected to the Internet or a LAN you will need:

• Pentium-based laptop or desktop computer running Microsoft Windows XP (or better)

• Ethernet based Network Interface Card (NIC) or built-in port capable of 10/100 MBit operation

• Appropriate Ethernet modem for Internet connection, or

• Switch or hub (Linksys brand strongly recommended) for LAN

connection

• Standard CAT 5 Ethernet interconnect cable

• Microsoft Internet Explorer version 6.0 or later

• Sun Microsystems Java Runtime Environment

FEATURES AND FUNCTIONS

LAN C

ONNECTION

4.2.1

Features

• Ethernet/LAN connectivity, 10/100base-T compatible

• Fully ™ (LAN eXtensions for Instrumentation) class C compliant

• Built-in Web Server for direct control using Internet Explorer 6.0 or

higher

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

• Programmable overvoltage protection with reset

• SCPI compliant command set

• User-programmable signals including Local/Remote Sense relay drive,

External Polarity relay drive, and Disconnect (Isolate) Relay Drive

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

• Voltage Ramp and Current Ramp functions

• Field-upgradeable firmware via RS232

• Full calibration through software control

• Rear panel Ethernet/IEEE-802.3 and RS232 control interface

• Rear panel External User Control Signal Interface

(Includes optically isolated external hardware trigger input)

4.2.2

4-2

• Rear panel configuration switch

Programmable Functions

• Output voltage and current

M550129-03 Rev K

SG Series Programming Ethernet Features, Functions and Specifications

PARAMETER

DEFAULT

• Soft limits for voltage and current

• Overvoltage protection

• Output enable/disable

• Maskable fault interrupt

• Hold and trigger

• External relay control

• Full calibration

4.2.3

4.3

4.3.1

Readback Functions

• Measured voltage and current

• Voltage and current settings

• Soft voltage and current limits

• Overvoltage protection setting

• Status and Accumulated Status registers

• Programming error codes

• Fault codes

• Manufacturer, power supply model, and firmware version identification

SPECIFICATIONS

(SUBJECT TO CHANGE WITHOUT NOTICE)

Ethernet/LAN Configuration

• Ethernet Standard: IEEE-802.3 compliant

• Technology: 10/100Base-T

• Connection Monitoring: Media Sense supported

• Protocol: TCP/IP, IPV4

• ICMP (ping server): Enable (default)/Disable

• IP Address Assignment: Automatic via DHCP (Primary default), Static,

or Automatic Private IP Addressing (Auto-IP, Secondary default)

• VXI-11 Discovery: Supported

• Security: Password protected access, and selective permissions for

each user

4.3.2

M550129-03 Rev K

Ethernet Configuration Factory Defaults

Host Name SGx<base model>-<last four digits of serial number>

4-3

Ethernet Features, Functions and Specifications SG Series Programming

Description Sorensen Power Supply SGx<base model> IP Address IP Addressing mode Subnet Mask Gateway 0.0.0.0

DNS Server 0.0.0.0 Listening Port 9221 User ID admin Password password Ping Echo On

* Primary/Secondary defaults:

The Ethernet interface provides the opportunity to set both a Primary and a Secondary IP configuration in the IP Configuration page (Section 5.5.2). If the Primary fails, the system defaults to the Secondary configuration. However, both setting “DHCP-acquired” and selecting “Auto IP Enabled” together in the Primary configuration, prevents the power supply from trying the Secondary configuration. Please see “TCP/IP Configuration” and “Auto IP Enabled” under IP Configuration, Section 5.5.2 for more detail.

DHCP-acquired (Primary default*) If DHCP absent, assigned via Auto-IP (Secondary default*) DHCP-acquired (Primary default*) DHCP-acquired (Primary default*) If DHCP absent, assigned via Auto-IP (Secondary default*)

4.3.3

4.3.4

4.3.5

Programming Resolution

SGA SGI

Voltage 0.002% of full scale 0.002% of full scale Current 0.002% of full scale 0.002% of full scale

Overvoltage Protection

0.002% of full scale (full scale is 110% of max output voltage.)

Programming Accuracy

SGA SGI

Voltage ± (0.1% of maximum output voltage) ± (0.1% + 0.1% of full scale) Current ± (0.25% of full scale output current ± (0.1% + 0.4% of full scale)

Overvoltage Protection

± (0.5% of max output voltage)

(0.5% + 0.5% of full scale) (full scale 110% of max. output voltage)

Readback Resolution

SGA SGI

Voltage 0.002% of full scale 0.02% of full scale Current 0.002% of full scale 0.02% of full scale

4-4

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SG Series Programming Ethernet Features, Functions and Specifications

4.3.6

Readback Accuracy

SGA SGI

Voltage ± (0.1% of full scale output voltage)

Current*

After 30 minutes operation with fixed line, load, and temperature.

Note: Refer to the applicable power supply manual (SGA or SGI) for effects of line regulation, load regulation, and temperature on accuracy specifications.

± (0.25% of full scale output current)*

± (0.1% + 0.15% of maximum output voltage)

± (0.1% + 0.4% of maximum output current)

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Ethernet Features, Functions and Specifications SG Series Programming

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SG Series Programming Ethernet Features, Functions and Specifications

M550129-03 Rev K

4-7

5.1

ETHERNET CONFIGURATION

AND REMOTE PROGRAMMING

REAR PANEL

This section provides illustrations of the SG power supply’s rear panel layout, which differs among the SG models. Figure 5-1, Figure 5-2 and Figure 5-3 are examples. Regardless of the layout, the component functions are common across all models, and those that are pertinent to the Ethernet option are described here.

SECTION 5

1 – Ethernet (RJ-45) connector. Adjacent to the RJ-45 connector are two green LEDs.

If one of the LEDs is lit, the link is connected either to a hub switch or to another host. If both are lit, the connection speed is 100MB.

2 – RS232 (RJ-type 6P6C) connector. 3 – Reset switch and green dual-purpose NET LED.

Reset switch (must be depressed until NET LED begins blinking, which could take five or more seconds) returns configuration parameters to factory default settings (see Section 4.3.2). NET LED: when solid-lit, indicates Network Connectivity; blinking indicates Instrument ID (See “Instrument ID” in Settings, Section 5.5.3). If the LED is off, there is no Ethernet connection found by the power supply.

4 – Configuration Switch (may be 8-pin or 4-pin). For correct settings see Section

5.2.5)

5 –External User Control Signal Connector (see Section 5.3)

M550129-03 Rev K

Figure 5-1. SG Rear Panel with Ethernet/RS232 Options

5-1

Ethernet Configuration and Remote Programming SG Series Programming

Figure 5-2. SG Rear Panel with Ethernet/RS232 Options

1 – Ethernet (RJ-45) connector. Adjacent to the RJ-45 connector are two green LEDs.

If one of the LEDs is lit, the link is connected either to a hub switch or to another host. If both are lit, the connection speed is 100MB.

2 – RS232 (RJ-type 6P6C) connector. 3 – Reset switch and green dual-purpose NET LED.

4 – Configuration Switch (may be 8-pin or 4-pin). For correct settings see Section

5.2.5)

5 –External User Control Signal Connector (see Section 5.3)

5-2

M550129-03 Rev K

SG Series Programming Ethernet Configuration and Remote Programming

Figure 5-3. SGI Rear Panel with Ethernet/RS232 Options (4-pin Config Switch shown)

1 – Ethernet (RJ-45) connector. Adjacent to the RJ-45 connector are two green LEDs.

If one of the LEDs is lit, the link is connected either to a hub switch or to another host. If both are lit, the connection speed is 100MB.

2 – RS232 (RJ-type 6P6C) connector. 3 – Reset switch and green dual-purpose NET LED.

4 – Configuration Switch (may be 8-pin or 4-pin). For correct settings see Section

5.2.5)

5 –External User Control Signal Connector (see Section 5.3)

5.2

ETHERNET SETUP PROCEDURE

The Ethernet option is installed into the supply at the factory. Use the Setup Procedure that applies to your system and application to configure the Ethernet.

There are four methods of setting the IP address of the unit, each of which is described in the subsections that follow:

• Set an IP address through DHCP (Primary default).

• If DHCP is not available, the unit can assign itself an IP address in the

Auto-IP (dynamic link local addressing) range (Secondary default).

• Use the serial communications port to manually assign an IP address. (IP address can be set via the front panel on SGI units.)

• Set the IP address through the Web page interface.

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5-3

Ethernet Configuration and Remote Programming SG Series Programming

NOTE: The SG Ethernet Option has been designed and tested to be fully compatible with Microsoft Internet Explorer 6.0. This is the only browser supported by Elgar Electronics Corporation (EEC) in its Ethernet-based products. Earlier versions of Explorer (or browsers by other companies) may or may not work correctly, and as such, are not supported by EEC.

5.2.1

Network Setup Using DHCP

Before beginning this procedure, get access to the DHCP server or see your network administrator to get the IP address assigned to the power supply.

NOTE: The power supply is VXI-11 compliant, so even without access to the DHCP server, it is still possible to discover the IP address assigned to the power supply with programs such as National Instrument’s NI-VISA.

1. Start with the power supply in the power-off state.

2. Connect a RJ-45 network cable from the power supply to the network

with the DHCP server.

3. Power on the power supply and allow the power supply to perform its initialization.

4. Identify the IP address assigned to the power supply by accessing the DHCP server, by any of three ways:

• asking your network administrator

• discovering it with a VXI-11 compliant discover program

• connect using a computer serial communications program

such as HyperTerminalTM set for 19200 baud, no parity, 8 data bits, 1 stop bit and request the IP address with the command, SYST:NET:IP?<Enter>. You will receive a response that includes two IP addresses in the form of four sets of octets separated by a dot: e.g., 192.168.4.3 and 92.168.4.3 or 0.0.0.0 and 72.32.3.5

5-4

If you choose to use MS HyperTerminalTM to identify the IP address:

a. After inputting the above parameters (baud rate, etc.),

in the HyperTerminalTM window click the disconnect

icon and then the properties icon. b. In the properties window select the Settings tab. c. In the Settings window click the ASCII Setup button. d. In the ASCII Setup window in the ASCII Sending

section, check “Echo typed characters locally” and in

the ASCII Receiving section, check “Append line

feeds to incoming line ends.” Leave all other check

boxes in their default state.

5. The SG Ethernet hardware is now configured. Open Internet Explorer 6 or higher, or compatible Web browser and enter the IP address of the power supply to view the Home page of the power supply. Figure 5-4 shows the SGI Power Supply Home page; the SGA Power Supply

M550129-03 Rev K

SG Series Programming Ethernet Configuration and Remote Programming

Interface differs in that its banner shows “SGA” and it does not come with the POWER or PRESETS pages.

5.2.2

Figure 5-4. Power Supply’s Home Page

(SGI shown here)

Network Setup Using Auto-IP

For this method, use a VXI-11 compliant discovery program such as National Instrument’s NI-VISA to discover the IP address assigned to the power supply. The power supply will assign itself an IP address in the IP address range from 169.254.0.1 to 169.254.255.254 with a subnet mask of

255.255.0.0. NOTE: When connecting your Sorensen unit to a network, Elgar strongly

recommends using Linksys® hubs or switches, which have undergone extensive compatibility testing with the Ethernet interface.

1. Start with the power supply in the power-off state.

2. Connect a crossover cable from the power supply directly to your PC.

3. If the PC is already configured to obtain an IP address automatically, skip to Step 4. Otherwise:

a. In Windows click Start, Settings, Control Panel. b. Click open Network Connections. (For XP, if in the Category

View, click Network and Internet Connections, and then Network Connections).

M550129-03 Rev K

5-5

Ethernet Configuration and Remote Programming SG Series Programming

c. In the Network Connections window, right click the icon for

the network adapter used to connect to the power supply, and click Properties.

d. Find the TCP/IP protocol item under the Configuration tab

(for XP: find the item under the General tab), and click

Properties. Select Obtain an IP Address Automatically. e. Click OK to save the change. f. Click OK again to apply the settings to the network

adapter.

4. In Windows, click Start, and then Run…

5. In the Run window, type “ipconfig /release” and click OK.

6. Again click Start, and then Run…

7. In the Run window, type “ipconfig /renew” and click OK. Your PC will assign itself an IP address in the Auto-IP range.

8. Power on the power supply and allow the power supply to perform its initialization.

9. Identify the IP address assigned to the power supply by discovering it with a VXI-11 compliant discover program.

5.2.3

10. Continue by following the procedure in Section 5.2.4. NOTE: When Auto-IP assigns an IP address, Web page connections will

time out after 5 minutes of inactivity, which requires logging in again.

Network Setup Using the Serial COM Port

1. Connect from the PC COM1 port to the power supply’s RS232 port

(see Figure 5-1 for port location) using a cable with an RJ modular plug to D-Subminiature connector (refer to details in Section 3.2).

2. Have ready the IP address (e.g. 192.168.0.200) and subnet mask

(e.g., 255.255.255.0) to be assigned to the power supply.

3. Run a serial terminal program, such as MS HyperTerminalTM. Set the

baud rate (bits per second) to 19200, data bits to 8, parity to none, stop bits to 1, flow control to none. Establish the connection.

If you choose to use MS HyperTerminalTM:

a. After inputting the above parameters, in the HyperTerminalTM

window click the Disconnect icon and then the Properties icon. b. In the Properties window select the Settings tab. c. In the Settings window click the ASCII Setup button. d. In the ASCII Setup window in the ASCII Sending section,

check “Echo typed characters locally” and in the ASCII

Receiving section, check “Append line feeds to incoming line

ends.” Leave all other check boxes in their default state.

5-6

M550129-03 Rev K

SG Series Programming Ethernet Configuration and Remote Programming

4. Power on the power supply and allow the power supply to perform its initialization. In HyperTerminalTM, tap the

ENTER

key a couple of times to clear the input buffer NOTE: tapping the when using HyperTerminalTM, rather than tapping the

DELETE

keys.

ENTER

key is also required to clear any errors

BACKSPACE

5. Set the IP address by typing SYST:NET:IP “xxx.xxx.xxx.xxx” <enter> (where xxx.xxx.xxx.xxx is the new IP address). For example, to set 192.168.0.200 as the IP address, type SYST:NET:IP “192.168.0.200” <enter> NOTE: the format requires a single space after SYST:NET:IP and double quotes around the IP address numbers.

5.2.4

6. Set the subnet mask with SYST:NET:MASK xxx.xxx.xxx.xxx <enter>.

7. After configuring all settings, verify with the queries, SYST:NET:IP? <enter> and SYST:NET:MASK? <enter>.

8. Type *RST<enter> to perform a power–on reset of the power supply.

9. The SG Ethernet hardware is now configured. Open your Web

browser and enter the assigned IP address of the power supply to view the power supply web page.

10. The power supply is now ready to be plugged into the network.

Network Setup Using Web Browser

Note: This requires that the PC’s IP address be in the same network as the IP address assigned to the power supply. It also requires your Web browser to open the power supply’s Home page.

Note: For proper functionality on the Web browser, ensure that Sun Microsystems’ Java Runtime Environment is installed on the PC. Visit www.java.com to download, after setting the Web browser’s Security to enable scripting of Java applets:

1. In the Tools menu, select Internet Options… and click the Security tab.

2. At the bottom of the Security window click Custom level…

3. In the Reset custom settings drop-down, select Medium and click

Reset and then OK).

4. Now use your Web browser for Network Setup: In the Web browser’s Address: field, type xxx.xxx.x.xxx where xxx.xxx.x.xxx is the power supply’s IP address. (See Section 5.4.3 for description and operation information).

5.2.5

Configuration Switch

Use the DIP switch (will have either four or eight switches and is accessible from the rear panel) to configure the power supply with the installed Ethernet

M550129-03 Rev K

5-7

Ethernet Configuration and Remote Programming SG Series Programming

interface adapter. The following figures show the DIP switch configuration for the Ethernet connection. On the Ethernet master, set the rear panel switch to Remote On, and disregard all remaining switches.

Note: There is one of two types of DIP switches: toggle or rocker. For toggle switches, the shading indicates the position of the toggle switch.

For rocker switches, the shading indicates the depressed side.

Figure 5-5. SG 8-pin Configuration Switch for the Ethernet Option

Figure 5-6. SG 4-pin Configuration Switch for the Ethernet Option

5-8

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SG Series Programming Ethernet Configuration and Remote Programming

5.2.6

Remote/Local Selection

Set the rear panel Remote/Local switch to select remote or local operation.

Remote ON switch (rocker) is top depressed.

Table 5-1. Remote/Local Switch

Switch Position

OFF

Remote operation selected.* Local operation selected, and front panel control is enabled.

NOTE: Unit will switch to remote operation upon issuing the first Ethernet or RS232 non-query command.

* In the ON position, the power hardware and Ethernet card initialize to the

remote state at power-on. When in remote operation, the front panel control remains disabled

regardless of the state of the REN (Remote ENable) line, or the GTL (Go To Local) command.

To revert to front panel control, use the special command SYST:LOCAL <on/off>.

Powering up in remote mode will result in the operating conditions described in Table 5-2.

Description

M550129-03 Rev K

5-9

Ethernet Configuration and Remote Programming SG Series Programming

See CAL:INIT:VOLT to change.

Table 5-2. Remote Mode Power-on Conditions

Condition Default

0 Volts (initial from factory power–on voltage); otherwise, last

Voltage

Current

Soft Voltage Limit

value saved by SCPI command or by the SAVE SETTINGS button in the Web Settings page.

0 Amps (initial from factory power–on current); otherwise, last value saved by SCPI command or by the SAVE SETTINGS button in the Web Settings page. See CAL:INIT:CURR to change.

Model maximum voltage *

Soft Current Limit

OVP Trip Voltage

Delay 0.5 seconds Foldback Protection OFF (non-configurable) Output Hold OFF Unmask NONE Service Request Capability OFF

User-programmable temporary limit (reverts to power-on defaults after power

Model maximum current * Model maximum voltage +10% (initial from factory power–on

OVP); otherwise, last value saved by SCPI command or by the SAVE SETTINGS button in the Web Settings page. See CAL:INIT:VOLT:PROT to change.

ON ** See CAL:MOD:POWERON

cycle or Reset command is issued).

User-selectable

5.3

EXTERNAL USER CONTROL SIGNAL CONNECTOR

A10-pin Molex connector (Figure 5-7) located at the rear panel provides external auxiliary control signals to increase the user’s operating control of the supply. The mating receptacle is Molex 43025-1000 with 10 female terminals. The Molex terminals accommodate wire sizes from #20 - #24.

The relay outputs, when active, connect the POLARITY, ISOLATION and SENSE pins (Pins 6, 7 and 8) of the connector to the relay COMMON pin (Pin 5). The relays are rated at 120VAC/125VDC @ 1A. Any change in output (voltage, current, etc.) initiated by the user from the RS232, GPIB, or Ethernet interface, will generate a 10ms synchronization pulse at the rear panel User Control Signal Connector of the unit (TRIGGER OUT).

5-10

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SG Series Programming Ethernet Configuration and Remote Programming

Table 5-3. External User Control Signal Connector Pinout – Ethernet only

1 FOLDBACK

2 SHUTDOWN

3 FAULT

5 COMMON

6 POLARITY

7 ISOLATION

8 SENSE

10 TRIGGER IN

Signal

Name

TRIGGER OUT

ISO COMMON

Functional Description

Output signal, active-low; asserted when in foldback mode; open-collector of opto-isolator transistor; emitter is connected to Pin-9. (See OUTP:PROT:FOLD command in the Output SCPI Command Subsystem, Section 6.7 of this manual).

Input signal, TTL active-high; immediate shutdown when signal is pulled high; open-anode of opto-isolator diode with internal 1kΩ series resistor; cathode is connected to Pin-9.

Output signal, active-low; asserted when a fault is recorded in the fault register; open-collector of optoisolator transistor; emitter is connected to Pin-9.

Output signal, active-low; synchronization pulse for 10 ms when a change in the output occurs; open-collector of opto-isolator transistor; emitter is connected to Pin-9.

Return for all relay contacts. Could be optionally connected to Pin-9, externally, or internally with jumper JP1 on rear panel Ethernet Connector PWA, 5550387.

Output signal, asserted (internal relay contacts close to Pin-5, COMMON) when negative output polarity is programmed (e.g. OUTPut:POLarity INV) to program negative voltage (e.g., SOURce:VOLTage -5.0)

Output signal, asserted (internal relay contacts close to Pin-5, COMMON) when the output relay is programmed ON (e.g., OUTPut:ISOlation ON).

Output signal, asserted (internal relay contacts close to Pin-5, COMMON) when the sense relay is programmed ON (e.g., OUTput:SENse ON).

Return for all opto-isolator signals. Could be optionally connected to Pin-5, externally, or internally with jumper JP1 on rear panel Ethernet Connector PWA, 5550387.

Input signal, TTL active-high; provides external hardware triggering of sequence functions and of voltage and current ramp functions; open-anode of opto-isolator diode with internal 1kΩ series resistor; cathode is connected to Pin-9.

Electrical

Characteristics

60 VDC, max., 4 mA DC, max.

12 VDC, max.,

- 5 VDC, max.

reverse voltage

60 VDC, max., 4 mA DC, max.

60 VDC, max., 7 mA DC, max.

Isolated from Pin-9

2 ADC, max., 30 VDC, max.

Isolated from Pin-5

12 VDC, max.,

- 5 VDC, max. reverse voltage

Figure 5-7. External User Connector Pinout (10-pin Molex, rear panel view)

M550129-03 Rev K

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Ethernet Configuration and Remote Programming SG Series Programming

SCPI Command Internal Relay Contact State Pin (return to Pin-5)

OUTP:ISOL 0 ISOLATION relay = open OUTP:ISOL 1 ISOLATION relay = closed OUTP:SENSE 0 REMOTE SENSE relay = open OUTP:SENSE 1 REMOTE SENSE relay = closed OUTP:POL 0 POLARITY relay = open OUTP:POL 1 POLARITY relay = closed

Figure 5-8. Example of Open-Collector, TTL Input, and Relay Output Circuits

CAUTION

5-12

External relays must not be hot-switched; ensure that the voltage across the relay contacts and the current through them is zero prior to changing the relay states.

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SG Series Programming Ethernet Configuration and Remote Programming

5.4

PROGRAMMING/COMMUNICATION VIA ETHERNET

With the Ethernet option, there are four basic methods to communicate with the power supply from a PC:

• raw socket interface, sending delimited strings (default delimiter is <LineFeed>)

• application program that utilizes VXI-11 Discovery protocol

• Web browser (Internet Explorer 6 or higher or compatible) and the

internal Web server, with scripting of Java applets enabled

• RS232C serial interface

5.4.1

5.4.2

5.4.3

Raw Socket Interface

The essential components of communicating via a raw socket interface are the socket number, IP address and command delimiter. The default values are: socket = 9221, IP address = 192.168.0.200 (when static IP is enabled), and delimiter = line feed <LF>. All of these items may be changed via either the Web browser (see IP CONFIGURATION, Section 5.5.2) or the RS232C interface (see System SCPI command, Section 6.9).

For convenience and to comply with the proposed LXI™ standard, the VISA resource name is available on the home page of the power supply’s Web server.

VXI-11 Protocol

With programs such as National Instrument’s NI-VISA, the VXI-11 protocol allows the power supply to be easily configured in a test system.

Web Server

To communicate with the power supply via the built-in Web server, open a supported Web browser (Internet Explorer 6.0 or higher or compatible) and type the IP address of the power supply in the “Address” field. Tap the key to launch the power supply’s Ethernet Web page interface.

Note: To ensure proper functionality on your Web browser, Sun Microsystems’ Java Runtime Environment must be installed on your PC. Visit www.java.com to download. Also, set your Web browser’s Security to enable scripting of Java applets. (In the Tools menu, select Internet Options… and click the Security tab. At the bottom of the Security window click Custom level…; in the Reset custom settings drop-down, select Medium and click Reset and then OK).

ENTER

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Ethernet Configuration and Remote Programming SG Series Programming

5.5

ETHERNET WEB PAGES, OVERVIEW

The layout of each of the Web pages includes the banner with the heading, “Sorensen SGI (or SGA) Power Supply Interface” along with the device name below and a LOGIN button to the right. Below the SGI banner are eight tabs (six tabs in the SGA banner), each linked to its corresponding page. On each page is a title line (title matches tab name). In the title line is an area that frequently displays informational messages (when warranted) as you use the Web interface, such as a confirmation message or an error message.

Figure 5-9. SGI Banner and Tabs

Figure 5-10. SGA Banner and Tabs

Note: There are few differences between the SGA interface and the SGI interface: their titles and device names in the banner, their specifics in the Home page, and SGI has two pages that are not included in the SGA: Power and Presets. Unless SGA and SGI interfaces are both shown, most illustrations use only the SGI interface.

When navigating to the Ethernet Web pages by clicking their tabs, you will find that only the HOME page (default) may be accessed without logging in. You must log in (click LOGIN) before tabbing to the other pages, which allow access by permission only: FULL (Administrator), RW (Read\Write), or R (Read).

• FULL permissions users have access to all pages and all channels and may configure the interface, set and change security settings, allocate channels, control the output of the power supply, send commands, etc.

• RW permissions users may access all pages except SECURITY, and may read and control the output of the power supply for only the channels allocated to them. They are not authorized to make changes on the IP CONFIGURATION page.

• R permission users may read information related only to the channels allocated them, and cannot make any changes or control the output.

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SG Series Programming Ethernet Configuration and Remote Programming

Figure 5-11. Login Window

Once you have logged in, the LOGIN button becomes a LOGOUT button.

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Ethernet Configuration and Remote Programming SG Series Programming

5.5.1

HOME

This is the default, information-only page. It displays all of the current information about the supply that you are connected to:

Figure 5-12. SGI Home Page

• The Model number, the Manufacturer, and the Serial Number of your Ethernet power supply

• Firmware Revision: the version of the Ethernet firmware that is currently installed.

• VISA Resource identifies the specific resource name used to communicate via VISA (Virtual Instrument Software Architecture)

• LXI™ Compliance: the version and instrument class of the LXI™ standard with which your power supply is compliant

• Host Name: either the default or user-defined, network-unique identity (Must be limited to 15 characters or less for LXI compliance).

• Description: either the default or user-defined description of the power supply in use (you can change the description to suit your needs, in the

CONFIGURATION

page, but it must be limited to 36

characters)

• MAC Address: the power supply Ethernet’s unique hardware address

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SG Series Programming Ethernet Configuration and Remote Programming

• IP Address: your power supply’s address actually in use at start- up; can be statically configured, DHCP acquired (default), or AutoIP assigned (see description for

• Subnet Mask: network segment your power supply is on

• Gateway: IP address through which the instrument communicates

with systems that are not on the local subnet

• DNS Server: IP address of the Domain Name System (DNS) server

• Listening Port: port number for the embedded Web server

CONFIGURATION

page)

5.5.2

IP CONFIGURATION

Only users with FULL permissions shall have access to this Web page and be allowed to configure the interface. You are only required to complete the information for the parameters that you wish to change; all previously entered and saved information remains by default.

Host Name: the default name includes the base model number of your power supply, with the last four digits of the serial number. You may change this name as long as it is unique (Host Name must be limited to 15 characters for LXI compliance) so that VXI-11 Discovery and any other IP Discovery program can identify your specific device on your network.

M550129-03 Rev K

Figure 5-13. SGI IP Configuration Page

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Ethernet Configuration and Remote Programming SG Series Programming

To change: Type the new name (15 characters maximum) in

the blank field provided and click Apply to update (or make all desired changes before clicking Apply).

Description: you may change the default factory setting to something more meaningful to your current setup.

To change: Type your customized description, up to 36

characters, in the blank field provided, and click Apply to update (or make all desired changes before clicking Apply).

TCP/IP Configuration: the power supply has two TCP/IP configurations that can be set, Primary and Secondary. If the Primary Configuration is not valid on your network, the power supply will attempt to try the Secondary Configuration.

NOTE: The power supply will NOT try the Secondary Configuration if you have selected the Primary Configuration options, Obtain an IP Address Automatically and Auto IP Enabled.

You may statically assign an IP address as well as configure other Ethernet/LAN parameters, or you may keep/return to its default setting for automatic assignment of an IP address.

To assign: Click the radio button next to Use a Static IP

Address to manually configure some or all of the following the Ethernet/LAN parameters:

IP Address – input any standard IP address. (Factory setting is 192.168.0.200). After clicking Apply, you also must reset the power supply and then exit and restart the Web browser to effect this change. If you have changed the network portion of the IP address, it may be necessary to alter the network settings of your attached computer to reconnect to the power supply.

Subnet Mask – input a value that identifies which network segment your power supply is on, consisting of 4 whole numbers, each ranging from 0 through 255, separated by periods. (Factory setting is 255.255.255.0, a class-C network subnet mask). Click Apply to update (or make all desired changes before clicking Apply).

Gateway – input the IP Address of any gateway that stands between the instrument and any other network entities that communicate with the power supply. (No factory setting). Click Apply to update (or make all desired changes before clicking Apply).

5-18

DNS Server – input an IP address for the Domain

Name System (DNS) server. Click Apply to

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SG Series Programming Ethernet Configuration and Remote Programming

update (or make all desired changes before clicking Apply). This field has no factory setting.

Listening Port – input a port number for the

embedded Web server, ranging in value from 1025 – 65535. Click Apply to update (or make all desired changes before clicking Apply). The factory default port number is 9221.

To automate: (To return to the default setting): Click the radio

button next to Obtain an IP Address Automatically for dynamic address acquisition from the DHCP server.

Auto IP Enabled: allows the power supply to assign itself an IP address in the range from

169.254.0.1 to 169.254.255.254 with a subnet mask of 255.255.0.0. If it is enabled, when there is no DHCP server available, the power supply will assign itself an IP address. However, please keep in mind that when you select Obtain an IP

Address Automatically and you check Auto IP Enabled in TCP/IP Primary Configuration, the

system will not try the Secondary Configuration.

To enable: Click in the box to check; click again to uncheck

so that it is no longer enabled.

Example TCP/IP Configurations:

Primary: Use a Static IP Address Secondary: Obtain an IP Address Automatically (DHCP)

At power-up the power supply will assign itself the configured static IP address. If no other device is using the IP address, the power supply continues with that static IP address. If some other device is using that address, the power supply will move to Secondary and attempt to acquire an IP address from a DHCP server repeatedly until it gets an address.

Primary: Use a Static IP Address Secondary: Obtain an IP Address Automatically (DHCP) and AutoIP Enabled

At power-up the power supply will assign itself the static IP address. If no other device is using the IP address, the power supply continues with that static IP address. If some other device is using that address, the power supply will move to secondary and attempt to acquire an IP address from a DHCP server. If it cannot find a DHCP server to assign an address, it will assign itself a link-local address. If no other device is using that link-local address it will use it for 5 minutes minimum. At that time, if it is already in communication with some other device, it will hold onto that link-local address until the communication is finished and then retry DHCP. Then, if DHCP is not available, the power supply will revert to the last successful link-local address for another 5 minutes minimum.

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Ethernet Configuration and Remote Programming SG Series Programming

Primary: Obtain an IP Address Automatically (DHCP) and AutoIP Enabled Secondary: no matter the setting, will never be attempted

At power-up the power supply will attempt to acquire an IP address from a DHCP server. If it cannot find a DHCP server to assign an address, it will assign itself a link-local address. If no other device is using that linklocal address, it will use it for 5 minutes minimum. At that time, if it is already in communication with some other device, it will hold onto the link-local address until the communication is finished and then retry DHCP. If DHCP is not available, the power supply will revert to the last successful link-local address for another 5 minutes minimum.

Primary: Obtain an IP Address Automatically (DHCP) Secondary: Use a Static IP Address

At power-up the power supply will attempt to acquire an IP address from a DHCP server. If it cannot find a DHCP server to assign an address, the power supply will move to Secondary and assign itself the static IP address. If no other device is using the IP address, the power supply continues with that static IP address. If some other device is using the static IP address, the power supply will move back to Primary and start the entire operation again.

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SG Series Programming Ethernet Configuration and Remote Programming

5.5.3

SETTINGS

The Settings page is available to users who have FULL, Read/Write or Read Only access to at least one power supply (Read Only users can make no changes to the settings). In this page you will see continuous updates (2-5 times per second) of the actual voltage output (value displayed on the left) and the actual live current output (value displayed to the right).

Voltage: value above is updated with actual voltage output of the power supply

Current: value above is updated with actual live current output Set V: the programmed voltage setting Set I: the programmed current setting

Set OVP: the programmed over voltage protection setting APPLY: puts into effect the newly input settings CC and CV indicators: presently operating output mode of the power

supply, either constant voltage or constant current. OVP indicator: highlighted red if over voltage protection is activated

M550129-03 Rev K

Figure 5-14. Settings Page

5-21

Ethernet Configuration and Remote Programming SG Series Programming

FAULT indicator: highlighted red if fault has occurred OUTPUT indicator: solid-lit shows power output status is On

If you have Read/Write access, you can change the following settings (after inputting desired settings, click APPLY):

• Set V – click in the Set V field and input a new value for voltage.

• Set I: click in the Set I field and input a new value for current.

Set OVP: click in the Set OVP field and input a new value for over voltage protection.

Output – click the applicable button(s) as follows: CLEAR OVP: to clear the OVP indication/condition after clearing the

cause of the event. The power supply will revert to the last saved values for Voltage, Current, and OVP. Be sure to reset these values, if desired, before clearing an OVP condition.

CLEAR FAULT: to clear the hardware fault indication/condition after clearing the cause of the event.

OUTPUT: to turn on or off the power output (see Output indicator) FRONT PANEL LOCKOUT: to prevent or enable changes being made

via the front panel (LED to the left is lit when Lockout is in effect).

• INSTRUMENT ID: click to identify which power supply (instrument) in a rack of equipment corresponds to the Channel selected. The LED to the left of this button indicates whether or not this function is turned on (ON causes the instrument’s rear panel NET LED to flash; the flashing continues until you click

INSTRUMENT ID again).

Power-on Default: click the applicable button(s) as follows:

• RECALL SETTINGS: click to restore the programmed Power-on defaults into the Set V, Set I and Set OVP settings, and to the power supply output (these defaults are those that were last saved prior to this Power-on).

• SAVE SETTINGS: after clicking APPLY, click SAVE SETTINGS to save the presently set values displayed in the Set V, Set I and Set OVP fields into non-volatile flash. (If only one new setting had been input, the other previously saved values remain the same).

Be aware that these then become the new power-on settings that will be applied at power-up time and after OVP reset as described in “Clear OVP” above.

NOTE: When you click SAVE SETTINGS, you will get a pop-up alert

(Figure 5-15

supply to power-on with a voltage on its output terminals after a restart or power cycle.

) telling you that saving a non-zero voltage may cause the power

5-22

M550129-03 Rev K

SG Series Programming Ethernet Configuration and Remote Programming

Figure 5-15. Alert Message for Save Settings

SCPI C

OMMAND SECTION

SEND COMMAND: (not to be used with any command that provides a

response) input a properly formatted SCPI command (Section 6) in the upper of the two windows and click this button to send the command.

SEND AND READ: for queries, input a properly formatted SCPI query command in the upper of the two windows, and click this button to send the command and read the response in the lower of the two windows.

SCPI Command History: a history of the last few commands sent to the power supply are remembered by the system and listed in this area. You can click on a command to have it be pasted in the command window.

CLEAR RESPONSES: click this button to clear the response window of previous responses.

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Ethernet Configuration and Remote Programming SG Series Programming

5.5.4

STATUS

The Status page displays updated information for the following parameters:

5-24

Figure 5-16. Status Page

Output: displays the power output status, ON or OFF Trigger: set up by SCPI commands, displays whether the Trigger state is

OFF, ARMED, or TRIGGERED. OVP: displays Read Only status of over voltage protection, either OK

(normal) or TRIPPED. FAULT: displays Read Only status of over temperature condition, either

OK (normal) or TRIPPED. Command Error: displays command and syntax errors that are queued

in the supply. READ NEXT ERROR: each click brings the next error into the Command

Error display, until no other errors are in the queue. CLEAR MESSAGES: click this button to clear the Command Error

message window of past messages.

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SG Series Programming Ethernet Configuration and Remote Programming

Last Calibration Date: displays the date that the power supply (instrument) was last calibrated; configurable with SCPI commands, normally at the time of calibration.

Next Calibration Date: displays the date that the power supply should be calibrated next; also configurable with SCPI commands, normally calculated at time of calibration.

Ping Echo: except for Read Only users, allows turning echo ability On or Off, depending on whether or not you want the supply to respond to a Ping command from another device on the network. The default setting for Ping Echo is response enabled. Click the OFF radio button if you do not want the supply to respond to a ping.

Ping Remote IP Address: allows you to input an IP address of another device in the system

Ping: click this button to ping the device at the address that you entered in the Ping Remote IP Address field.

Response: displays the result of your ping. For Example, if the Ping Address were 69.36.230.190, the Response window would display:

Pinging :69.36.230.190 Response Took 0 ticks Or Ping Failed (if the host specified is not in the network)

CLEAR RESPONSES: click this button to clear the Response window of past ping responses.

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Ethernet Configuration and Remote Programming SG Series Programming

5.5.5

POWER

The Power page (only in SGI) displays updated information for the following parameters:

5-26

Figure 5-17. SGI Power Page (not in SGA)

Volts: value above is updated with actual voltage output of the power supply

Current: value above is updated with actual live current output of the power supply

Power (kW): value above is updated with actual power output of the power supply

Max Volts: the programmed voltage setting limit Max Current: the programmed current setting limit Max Watts: the programmed power setting limit EXECUTE/UPDATE: puts into effect the newly programmed limits Stop Volts: the programmed voltage setting when you exit power mode

M550129-03 Rev K

SG Series Programming Ethernet Configuration and Remote Programming

Stop Current: the programmed current setting when you exit power mode

Stop OVolt: the programmed overvoltage setting when you exit power mode

STOP: puts into effect the newly programmed settings and exits power mode

CC and CV indicators: presently operating output mode of the power supply, either constant voltage or constant current.

OVP indicator: highlighted red if over voltage protection is activated FAULT indicator: highlighted red if fault has occurred OUTPUT indicator: solid-lit shows power output status is On

If you have Read/Write access, you can change the following settings (after inputting desired settings, click EXECUTE/UPDATE):

• Max Volts: click in the Max Volts field and input a new value for voltage.

• Max Current: click in the Max Current field and input a new value for current.

• Max Watts: click in the Max Watts field and input a new value for power.

If you have Read/Write access, you can change the following settings (after inputting desired settings, click STOP):

• Stop Volts: click in the Stop Volts field and input a new value for voltage.

• Stop Current: click in the Stop Current field and input a new value for current.

• Stop OVolt: click in the Stop OVolt field and input a new value for overvoltage protection.

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Ethernet Configuration and Remote Programming SG Series Programming

5.5.6

PRESETS

The Presets page (only in SGI) displays stored values, which can be edited, saved and/or recalled. The parameters for this page are:

Figure 5-18. SGI Presets Page (not in SGA)

Index: Displays memory locations named POWER ON (default power on settings) and 1 through 9

Volts: value presently stored in memory location name Current: value presently stored in memory location name Over Volt: value presently stored in memory location name Output State: displays state of the output condition presently stored in

memory location name (indicator is an open circle for OFF or a solid circle for ON)

SAVE: saves the input values into their respective location name memory (Must have Read/Write access)

EXECUTE: recalls the following settings into operation from its respective memory location name (Must have Read/Write access)

If you have Read/Write access, you can save the following settings into its respective memory location name (after inputting desired settings, click SAVE):

• Volts: click in the Volts field and input a new value for voltage.

5-28

• Current: click in the Current field and input a new value for current.

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SG Series Programming Ethernet Configuration and Remote Programming

• Over Volt: click in the Over Volt field and input a new value for overvoltage protection.

• Output State: click in the Output State field to change the state of the output condition indicator. (indicator is an open circle for OFF or a solid circle for ON)

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Ethernet Configuration and Remote Programming SG Series Programming

5.5.7

SECURITY

Accessible only if you have Administrative (Full) rights, this page allows you to set up new user accounts for access to the power supply(s). It displays all of the currently set up users and respective permission levels.

• FULL = full rights/Administrator

• RW = read and write to power supply(s)

• R = Read Only

• -L = identifies user currently logged onto a power supply session.

5-30

Figure 5-19. Security Page

ADD: Click to pull up a separate page in which to input new users with passwords and permission levels. (See Figure 5-20).

REMOVE: Click to delete selected user after first highlighting their User Name row. The Admin user cannot be removed.

EDIT: Click to change settings (name/permissions) for selected user after first highlighting their User Name row. This brings up the Edit Existing User window (Figure 5-21).

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SG Series Programming Ethernet Configuration and Remote Programming

ADD NEW USER

Accessible from the Security Page by clicking the ADD button, this page is allows you (a Full permissions user) to add new users with their passwords and permission levels.

Figure 5-20. Add New User Window from Security Page

To add: 1. Input appropriate information in User ID (case-sensitive,

limited to 14 characters), in Password (case sensitive, limited to 9 characters), and in Re-enter Password fields.

2. Select permission level from the Permission dropdown.

3. To accept into the system, click SUBMIT or tap the

ENTER

key.

In the ADD NEW USER: line, you will see a message that [new user name] was added successfully, or a message that it was unsuccessful and the reason.

RESET: click to clear the fields where you input information. CANCEL: click to return to the Security page; a message displays

verifying that the Add New User was cancelled. This button does NOT “undo” previous successful submit operations.

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Ethernet Configuration and Remote Programming SG Series Programming

EDIT EXISTING USER

Accessible from the Security Page by clicking the EDIT button after first selecting the user’s name, this page allows you (a Full permissions user) to edit the parameters for an existing user.

Figure 5-21. Edit Existing User Window from Security Page

When this page appears, the fields are populated with the selected user’s existing parameters.

To edit: 1. Input appropriate information, as desired, in User ID

(case-sensitive, limited to 14 characters), in Password (case sensitive, limited to 9 characters), and/or in Re- enter Password fields.

2. Select permission level from the Permission dropdown.

3. To accept into the system, click SUBMIT or tap the

ENTER

key.

If your edit was successful, you will return to the Security page with a message to that effect.

If there is an error in the editing process, you will stay in the Edit Existing User page, and you will see a message in the EDIT EXISTING USER: line, describing the reason for the error.

• RESET: click to clear the fields where you input information.

• CANCEL: click to return to the Security page; a message displays

verifying that the User Edit was cancelled. This button does NOT “undo” previous successfully submitted operations.

5-32

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6.1

6.2

IEEE 488.2 GPIB/RS232/ETHERNET

AND SCPI COMMAND OPERATION

INTRODUCTION

This section describes the operation of the Digital Interface Adapter (DIA) for both GPIB and Ethernet, by using the IEEE 488.2, Ethernet and SCPI command sets, which provide programming, query, and status commands that facilitate remote control of the power supply.

The applicable DIA (for either GPIB or Ethernet) supports the IEEE

488.2 GPIB, Ethernet and SCPI 1995.0 status reporting data structures. These structures are comprised of status registers and status register enable mask pairs. The following sections describe these pairs.

SECTION 6

6.2.1

M550129-03 Rev K 6-1

SCPI Status Byte

The SCPI Status Byte registers the status of the instrument, in one of seven bits described in Table 6-1. Read the SCPI Status Byte status register by issuing either the *STB? command or a serial poll. Clear the Status Byte status register by issuing the *CLS command.

Configure the DIA to request service from either the GPIB or Ethernet controller, by setting the appropriate bits in the Service Request Enable Register (SRE), which has the same bit pattern as the Status Byte. Modify the SRE register by issuing the *SRE <mask> command, and read the SRE register by issuing the *SRE? command. For example, if the SRE register is set to 0x10 (MAV), when the DIA unit has a message available, the Status Byte register will contain 0x50 (RQS and MAV) and the SRQ (SRQ is supported only on GPIB; not Ethernet or RS232) line will be asserted to indicate a request for service. See Table 6-1 and refer to SCPI Status Implementation, page 8-1, for further information.

SCPI Command Operation SG Series Programming

Table 6-1. SCPI Status Byte

Bit Hex Value Description

0 0x01 1 0x02

2 0x04

3 0x08 4 0x10 5 0x20

6 0x40

7 0x80

Not used. Protection Event Status flag. Indicates the selected protection

event occurred. Error/event queue message available. Set when any error/event is entered in the System Error Queue. It is read using the SYSTem:ERRor? query. Questionable Status flag. Indicates the quality of the current data being acquired. This bit is not used. Message available (MAV). Indicates a message is available to read via serial or Ethernet. Standard Event Status Register (ESR). Summary bit for the ESR. Set when any of the ESR bits are set and cleared when the ESR is read. Request Service flag (RQS) for serial polling or Master Summary Status (MSS) in response to *STB? If service requests are enabled (with the *SRE command), this bit represents the RQS and will be sent in response to a serial poll, then cleared. If RQS is not enabled, the bit represents the MSS bit and indicates the device has at least one reason to request service. Even though the device sends the MSS bit in response to a status query (*STB?), it is not sent in response to a serial poll. It is not considered part of the IEEE-488.1 Status Byte. Operation Status flag. Indicates the current operational state of the unit. This bit is not used.

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SG Series Programming SCPI Command Operation

6.2.2

Standard Event Status Register (ESR)

Read the Standard Event Status Register (ESR) by issuing the *ESR? command. Reading this register or issuing a *CLS command will clear the ESR. Use the *ESE (Standard Event Status Enable Register) to enable corresponding ESR bits to be summarized in the summary bit of the SCPI Status byte. To configure the Digital Interface Adapter (DIA) to generate service requests based on the ESR, both the Standard Event Status Enable Register and the Service Request Enable Register must be programmed. See , and refer to Section 5 for further information.

Table 6-2. Standard Event Status Register

Bit Hex Value Description

0 0x01 Operation Complete 1 0x02 Request Control - not used 2 0x04 Query Error 3 0x08 Device Dependent Error 4 0x10 Execution Error (e.g., range error) 5 0x20 Command Error (e.g., syntax error) 6 0x40 User Request - not used 7 0x80 Power On

6.2.3

Protection Condition and Protection Event Status Register

These two registers have the same bit meanings, but they differ in function.

Read the Protection Condition Register by issuing the STAT:PROT:COND? command. This command gives the present status condition of the power hardware, so the data is not latched. It is meant to be used as a polling register.

Read the Protection Event Status Register by issuing the STATus:PROTection:EVENt? command. Reading this register clears the Protection Event Status Register. Or clear the Protection Event Status Register by issuing a *CLS command or a *RST command. Bits in the Protection Event Status Register will be set only when the corresponding bit in the Protection Event Status Enable Register is set and the corresponding event occurs. The status is then latched and will remain in that state until it is read or cleared due to some command action. (Set the Enable Register with the STATus:PROTection:ENABle <mask> command, and query the Enable Register with the STATus:PROTection:ENABle? query).

To configure the Digital Interface Adapter (DIA) to generate service

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6-3

SCPI Command Operation SG Series Programming

requests based on the Protection Event Status Register, program both the Protection Event Status Enable Register and the Service Request Enable Register (*SRE). For further information, refer to the table below, and to SCPI Status Implementation page 8-1.

Table 6-3. Protection Condition and Event Status Registers

Bit Hex Value Description

0 0x01 Constant voltage operation 1 0x02 Constant current operation 2 0x04 Not used 3 0x08 Overvoltage protection tripped 4 0x10 Overtemperature protection tripped 5 0x20 Supply external shutdown active 6 0x40 Foldback mode operation 7 0x80 Remote programming error

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SG Series Programming SCPI Command Operation

Error Code

Description

No channels setup to t

rigger

GPIB GET

not allowed during message

GPIB IFC caused warm boot

Hardware watch

dog warm boot

Foreground watchdog warm boot

6.2.4

Operation Status and Questionable Status Registers

The Operation Status and Questionable Status Registers will always return 0 when queried. The Operation Status Enable and Questionable Status Enable Registers can be programmed and queried to allow SCPI compatibility but have no effect on the Operation Status and Questionable Status Registers.

6.2.5

Table 6-4 Table 6-5. SCPI Error Codes

Error/Event Queue

The Digital Interface Adapter (DIA) maintains an Error/Event Queue as defined by SCPI. The queue holds up to 10 error events. It is queried using the SYSTem:ERRor? command which reads in a First In/First Out (FIFO) manner. The read operation removes the entry from the queue. The *CLS command will clear all entries from the queue.

The following error codes are defined in the SCPI 1995.0 specification and are supported by the DIA. 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.

206

205

204

203

202

This means that an attempt was made to trigger the DIA using the TRIG:TYPE <1|2|3> command when there are no armed trigger settings. This error is not generated when the GET is received, even when there are no armed trigger settings.

This error means that the GPIB G(roup) E(xecute) T(rigger) multiline command was errantly generated by the system computer while or very shortly after a message is or was sent. Give a few milliseconds after a message was sent before attempting a GET; and never send a GET during the midst of a message transfer over the GPIB.

This error relates to the GPIB IFC signal, and is available only in association with a proprietary command.

This error is caused by a hardware fault either in the power supply proper, or on the DIA. One possible explanation might be that the mains power to the supply was interrupted for a short but sufficient time to cause the DIA processor to reset and re-boot. Also, it might be possible to generate this error by a very momentary off action of the front panel power switch.

This error means that the internal firmware on the DIA found an internal error condition that halted processing; to force resumption of processing, a warm boot was required.

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SCPI Command Operation SG Series Programming

Error Code

Description

Unexpected warm boot

Incompatible unit type

Incompatibility error

No error

Syntax error

arameter not allowed

Invalid string data

Invalid block data

Execution error

Command protected

Settings conflict

Data out of range

Out of memory

Hardware missing

Program currently running

Referenced name does not exist

Referenced name already exists

Checksum error

201

This error means that the DIA processor experienced a warm boot that was unexpected, and it may indicate an internal crash of the DIA processor.

102

This error is not used. It cannot occur.

100

This error is not used. It cannot occur.

The error queue is empty.

-102 An unrecognized command or data type was encountered.

-108 More arguments than expected were received.

-151 Incorrect password. Manufacturer, model, or serial number string was more than 16 characters. Invalid mnemonic.

-161 The expected number of data values was not received.

-200 An error/event number in the range [-299,-200] indicates that an error has been detected by the instruments execution control block. The occurrence of any error in this class shall cause the execution error bit (bit 4) in the Event Status Register to be set. An execution error can be the result of:

• A <program data> element out of range, such as programming 35 volts in a 33 volt device.

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

-203 Attempted to store calibration values to EEPROM without unlocking.

-221 Attempted to set output greater than soft limits or to set soft limits less than output.

-222 Parameter exceeded range of valid values.

-225 There is not enough memory to perform the requested operation.

-241 A legal command or query could not be executed because of a hardware fault.

-284 A legal command or query could not be executed because a function is currently running.

-292

-293

-316

6-6 M550129-03 Rev K

SG Series Programming SCPI Command Operation

Error Code

Description

Self-test failed

Calibration failed

Queue overflow

Communication error

-330

-340

-350

-360

A self-test failure has occurred. Error during calculation of calibration values occurred. The error 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/events remain in the queue and the most recent error/events are discarded.

Communications to a channel was disrupted.

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SCPI Command Operation SG Series Programming

6.2.6

6.3

Serial Poll Operation

Performing a serial poll will not modify the Status Byte other than to clear the RQS (bit 6) for a Digital Interface Adapter (DIA) requesting service. Queries affecting the Status Registers and subsequent serial poll are described below:

• *STB? clears the Status Byte

• *ESR? clears the ESR and bit 5 of the Status Register

• SYSTem:ERRor? clears bit 2 of the Status Register if the queue is

empty

ETHERNET LXI™, VXI-11, AND SCPI CONFORMANCE INFORMATION

The Digital Interface Adapter (DIA) for the Ethernet is IEEE-802.3 and LXI™ class C compliant. The syntax of all SCPI commands implemented by the SG power supplies and documented in this manual, are either SCPI confirmed in the SCPI 1995 Specification, Volume 2: Command Reference, or they are customized commands not part of the SCPI definition. None of the commands implemented by the SG power supplies are classified as SCPI approved commands (approved by the SCPI Consortium but not contained in the SCPI version to which the SG power supplies conform).

6.3.1

To document whether the syntax of each command is SCPI compliant or not, this manual provides a column, labeled “SCPI”, in each command reference table. A “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.

Parameter Definitions

The following table describes the format of the command arguments, when applicable.

PARAMETER DEFINITIONS

Type Valid Arguments

<NRf>

<string> Characters enclosed by single or double quotes.

The data format <NR1> 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.

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SG Series Programming SCPI Command Operation

6.3.2

6.3.3

Units

The SGA/SGI power supplies will accept the following units as suffixes to numeric values:

UNITS

Type of Unit

Voltage “VOLTS” or “volts”, “V” or “v”, “MV” or “mv” or “mV” Current “AMPS” or “amps”, “A” or “a”, “MA” or “ma” or “mA” Time “SEC” or “sec”, “S” or “s”, “MS” or “ms”, “MIN” or “min” Frequency “HZ” or “hz”

The default units are VOLTS, AMPS, SEC, and HZ. For example, “SOUR:VOLT 1” programs 1 volt. To program in units of millivolts, type “SOUR:VOLT 1mV”.

Valid Suffix

Conventions

SCPI uses the conventions where optional commands and parameters are enclosed by “[ ]”. Additionally the shorthand version of a command is indicated by capital letters.

6.3.4

For example, SOURce:VOLTage[:LEVel][:IMMediate][:AMPLitude] 120.0

can be written as SOURce:VOLTage 120.0

or SOUR:VOLT 120.0

Queries

The query syntax is identical to the command syntax with a “?” appended. For example, to query the programmed voltage, send the string: SOURce:VOLTage?. A subsequent device read will return a value such as “33.000”. All queries are terminated with a carriage return and line feed (0x0D 0x0A). When the power supply has nothing to report, its output buffer will contain two ASCII characters: a carriage return and linefeed (in decimal the values are: <13><10>).

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SCPI Command Operation SG Series Programming

Command

Description

up default.

6.4

IEEE 488.2 COMMON COMMAND SUBSYSTEM

The following commands are common to all SCPI instruments and declared mandatory by IEEE 488.2. In the following table, the Digital Interface Adapter (DIA) is defined as the “device” on the GPIB bus.

*CLS

*ESE <0+NR1>

*ESE?

*ESR?

*IDN?

*OPC

C*OPC?

*RCL <integer>

*RST

*SAV <integer>

Clears all status reporting data structures including the Status Byte, Standard Event Status Register, and Error Queue. The STAT:PROT:ENAB (protection event enable register) is cleared by this command; other enable registers are not cleared by this command. Sets the value of the Standard Event Status Enable Register that determines which bits can be set in the Standard Event Status Register. See section 6.2.2 for valid values. Returns the integer value of the Standard Event Status Enable Register. See section 6.2.2 for valid values.

Response: <0+NR1> Returns the integer value of the Standard Event Status Register. The ESR and the Status Byte ESR bit are cleared. See section

6.2.2 for valid values. Response: <0+NR1>

Returns the device identification as an ASCII string. Response: <Manufacturer>, <model>, <serial number>,

<DCI firmware version> <AI firmware version> Example: Sorensen, SGA100/150C-1AAA, 0622A00111,1.00,1.00

Enables the Operation Complete bit of the Standard Event Status Register to be set when all pending operations are complete. See section 6.2.2. Returns the integer value “1” when all pending operations are complete. See section 6.2.2.

Response: <0+NR1> SGI ONLY - Specifies the preset storage location (0 through 9) from which to load into the supply’s Voltage, Current, Overvoltage

Protection, and Output State settings. Preset location 0 stores the supply’s power on default. Resets the supply to its Power ON (PON) state. Clears all status reporting data structures including the Status Byte, Standard Event Status Register, and Error Queue. The STAT:PROT:ENAB (protection event enable register) is cleared by this command; other enable registers are not cleared by this command. Specifies the preset storage location (0 through 9) to store the supply’s existing Voltage, Current, Overvoltage Protection, and Output State settings. Preset location 0 stores the supply’s power

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SG Series Programming SCPI Command Operation

Command

Description

*SRE <0+NR1>

*SRE?

*STB?

*TST?

*WAI

Sets the value of the Service Request Enable Register, which determines which bits in the Status Byte will cause a service request from the device. See section on Status Byte for valid values. Returns the integer value of the Service Request Enable Register. See section on Status Byte for valid values. Values range from 063 or 128-191.

Response: <0+NR1> Returns the integer value of the Status Byte with bit 6 representing the Master Summary Status (MSS) instead of RQS. The MSS bit

acts as a summary bit for the Status Byte and indicates whether the device has at least one reason to request service based on the MAV and the ESR bits. The Status Byte is cleared. See section on Status Byte for valid values. Values range from 0-255.

Response: <0+NR1> Sets the device to execute an internal self-test and return the

integer value of the results. Value of “0” indicates no errors. Response: <0+NR1>

Sets the device to wait until all previous commands and queries are complete before executing commands following the *WAI command.

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SCPI Command Operation SG Series Programming

6.5

SOURCE SCPI COMMAND SUBSYSTEM

This section first presents a tree summary of the SOURce commands and then provides a tabular description.

6.5.1

SOURce :CURRent :CURRent? [:LEVel]

[:IMMediate?] [:AMPLitude] <NRf> [:AMPLitude?] :LIMit :LIMit? [:AMPLitude] <NRf> [:AMPLitude?] :RAMP <NRf> <NRf> :RAMP? :ABORt :ALL? :HTRIGgered <NRf> :HTRIGgered? :TRIGgered <NRf> <NRf> :TRIGgered? :TRIGgered :TRIGgered? :CLEar :AMPLitude <NRf> :AMPLitude?

:TIMeout? :VOLTage :VOLTage? [:LEVel] [:LEVel?]

[:IMMediate?] [:AMPLitude] <NRf> [:AMPLitude?] :LIMit :LIMit?

SOURCE SCPI Command Summary

[:LEVel?]

:POWer (Available only with SGI power supplies – see Section 6.13.) :POWer? (Available only with SGI power supplies – see Section 6.13.)

:LEVel :LEVel? :IMMediate :IMMediate? :AMPLitude <NRf> :AMPLItude?

[:IMMediate]

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SG Series Programming SCPI Command Operation

Command

Description

rrent for

[:AMPLitude] <NRf> [:AMPLitude?] :PROTection :PROTection? [:LEVel] <NRf> [:LEVel?] :TRIPped?

:STATe?

:CLEar :RAMP <NRf> <NRf> :RAMP? :ABORt :ALL? :HTRIGgered <NRf> <NRf> :HTRIGgered? :TRIGgered <NRf> <NRf> :TRIGgered? :TRIGgered :TRIGgered? :CLEar :AMPLitude <NRf>

:AMPLitude?

6.5.2

SOURCE SCPI Command Reference

The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.

SOURce :CURRent :CURRent? [:LEVel] [:LEVel?] [:IMMediate] [:IMMediate?] [:AMPLitude] <NRf> [:AMPLitude?]

:LIMit

:LIMit? [:AMPLitude]

<NRf> [:AMPLitude?]

SCPI

Source subsystem. C Sets the output current in amps (default) or in milliamps. C Returns the output current in amps or in milliamps C Sets the output current in amps (default) or in milliamps. C Returns the output current in amps or in milliamps. C Sets the output current in amps (default) or in milliamps. C Returns the output current in amps or in milliamps C

Sets the output current in amps (default) or in milliamps. C Returns the output current in amps or in milliamps C

Sets an upper soft limit on the programmed output current for the supply. The soft limit prevents the supply from being inadvertently programmed above the soft limit, thus providing a method for protecting the load against damaging currents. Returns the upper soft limit on the programmed output current for the supply. Sets an upper soft limit on the programmed output cu the supply. Returns the upper soft limit on the programmed output current for the supply.

C C C

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SCPI Command Operation SG Series Programming

Command

Description

Returns the ramping st

atus of all channels.

SOURce: CURRent:TRIGger:AMPLitude command.

SCPI

Sets the output current to ramp from the present value to the

:RAMP <NRf> <NRf>

:RAMP? :ABORt

:ALL? :HTRIGgered <NRf>

:HTRIGgered?

:TRIGgered <NRf>

<NRf>

:TRIGgered?

:TRIGgered

specified value (first argument) in the specified time (second argument). See Ramp Function description below. Returns 1 if the ramp is in progress, and 0 if the ramp is completed. Aborts ramping and clears trigger mode. N

Sets the value of the output current to ramp to be implemented when the hardware trigger is received. Returns the value of the output current to ramp to be implemented when the hardware trigger is received. Sets the output current to ramp from the present value to the specified value (first argument) in the specified time (second argument) upon the trigger command. See Ramp description below. Returns the value that the output current is to ramp to (first value) and the time that it is to ramp (second value) upon the trigger command. Sets the output voltage to the values stored by the

N N

:TRIGgered?

:CLEar

:AMPLitude <NRf>

:AMPLitude?

:POWer :POWer?

:TIMeout?

:VOLTage

:VOLTage?

[:LEVel]

[:LEVel?]

Returns the current level that will be set upon receipt of the trigger.

Clears the value stored by the SOURce:CURRent:TRIGger:AMPLitude command. Stores the value of the output current to be set when the SOURce: CURRent:TRIGGered command is sent. Returns the stored value of the output current to be set when the SOURce: CURRent:TRIGGered command is sent.

(in SGI only); see Section 6.13.2. Returns the integer value 1 (timeout since last query) or 0

(no timeout) of the timeout status of the channel. Sets the output voltage of the supply in volts (default) or in millivolts. Returns the output voltage of the supply in volts or in millivolts. Sets the output voltage of the supply in volts (default) or in millivolts. Returns the output voltage of the supply in volts or in millivolts.

C C C

C C

C N

C C C C

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SG Series Programming SCPI Command Operation

Command

Description

llivolts.

[:IMMediate]

[:IMMediate?]

Sets the output voltage of the supply in volts (default) or in millivolts. Returns the output voltage of the supply in volts or in

SCPI

C C

[:AMPLitude] <NRf>

[:AMPLitude?]

:LIMit

:LIMit? [:AMPLitude]

<NRf> [:AMPLitude?]

:PROTection

:PROTection?

[:LEVel] <NRf>

[:LEVel?]

:TRIPped?

:STATe? :CLEar

:RAMP <NRf> <NRf>

:RAMP? :ABORt

:ALL? :HTRIGgered <NRf>

:HTRIGgered?

Sets the output voltage of the supply in amps (default) or in milliamps. Returns the output voltage of the supply in amps or in milliamps. Sets the upper soft limit on the programmed output voltage. The soft limit prevents the supply from being inadvertently programmed above the soft limit, thus providing a method for protecting the load against damaging voltages. Returns the upper soft limit set on the programmed output voltage.

Sets the upper soft limit on the programmed output voltage. C Returns the upper soft limit on the programmed output

voltage. Sets the overvoltage protection trip point in volts (default) or in millivolts. Returns the set overvoltage protection trip point in volts (default) or in millivolts. Sets the overvoltage protection trip point in volts (default) or in millivolts. Returns the set overvoltage protection trip point in volts or in millivolts. Returns 1 (TRIPPED) or 0 (UNTRIPPED) state of the overvoltage protection circuit. Returns the state 1 (ON) or 0 (OFF) If the overvoltage protection is enabled.

Clears the overvoltage protection circuit. C Sets the output voltage to ramp from the present value to the specified value (first argument) in the specified time (second argument). See Ramp Function description Section 6.5.3.

Returns 1 if the ramp is in progress, and 0 if the ramp is

completed.

Aborts ramping and clears trigger mode. N

Returns the ramping status of all channels. N

Sets the value of the output voltage ramp to be implemented

when the hardware trigger is received.

Returns the value of the output voltage ramp to be

implemented when the hardware trigger is received.

C C

C C C C C C C

N N

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6-15

SCPI Command Operation SG Series Programming

Command

Description

SCPI

Sets the output voltage to ramp from the present value to

:TRIGgered <NRf> <NRf>

:TRIGgered? :TRIGgered

:TRIGgered?

:CLEar

:AMPLitude <NRf>

:AMPLitude?

the specified value (first argument) in the specified time (second argument) upon the trigger command. See description of the Ramp Function below. Returns the output voltage to ramp N Sets the output voltage to the values stored by the SOURce:VOLTage:TRIGger:AMPLitude command. Returns the voltage level that will be set upon receipt of the trigger. Clears the value stored by the SOURce:VOLTage:TRIGger:AMPLitude command. Stores the value of the output current to be set when the SOURce:VOLTage:TRIGGered command is sent. Returns the stored value of the output current to be set when the SOURce:VOLTage:TRIGGered command is sent.

C C C C C

6.5.3

RAMP FUNCTION

The ramp function allows the user to transition from one voltage or current to another linearly in a specified time period (100 ms - 99 sec with 100 ms programming resolution). A unit may ramp only voltage or current, not both at a given time.

For example, SOUR:VOLT:RAMP:TRIG 1 1 followed by SOUR:CURR:RAMP:TRIG 2 2 will cause the unit to ramp only the output current to 2 amps in 2 seconds upon the TRIG:RAMP command.

OLTAGE RAMPING TO A HIGHER VOLTAGE

Requires a programmed current of at least 20% of the full scale value. Settings less than 20% will significantly lengthen the ramp time due to charging of the large capacitance in the output section of the power supply.

OLTAGE RAMPING TO A LOWER VOLTAGE

Requires an appropriate resistive load. The discharge rate of the large capacitance in the output section of the power supply, plus other user capacitance, significantly lengthens the ramp time.

URRENT RAMPING

Requires an appropriate resistive load.

6-16 M550129-03 Rev K

SG Series Programming SCPI Command Operation

Command

Description

6.6

MEASURE SCPI COMMAND SUBSYSTEM

This section first presents a tree summary of the MEASure commands and then provides a tabular description.

6.6.1

MEASURE SCPI Command Summary

MEASure :CURRent :CURRent? :AVErage <NR1> :AVErage?

:POWer? (Available only with SGI power supplies – see Section 6.13.)

:VOLTage :VOLTage? :AVErage <NR1> :AVErage?

6.6.2

MEASURE SCPI Command Reference

The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.

MEASure :CURRent? :CURRent :AVErage

<NR1>

:AVErage?

:POWer? :VOLTage? :VOLTage :AVErage

<NR1>

:AVErage?

Measure subsystem. C Returns the floating point value of the DC output current in amps. C Measure Current subsystem. N Enter a value of 3 to 9 to set the number of readings to average together when returning the current value from the MEAS:CURR? command to reduce noise in the readback readings. The value of 3 (factory default) provides the fastest response time in the readings, but less rejection of noise. Returns the number 3 to 9 to indicate the number of readings to average together when taking a current reading. (SGI only); see Section 6.13 Returns the floating point value of the DC output voltage in volts. C Measure Voltage subsystem. N Enter a value of 1 to 5 to set the number of readings to average together when returning the voltage value from the MEAS:VOLT? command. This function reduces noise in the readback readings. The value of 1 (factory default) provides the fastest response time in the readings, but less rejection of noise. Returns the number 1 to 5 to indicate the last set number of readings to average together when taking a voltage reading.

SCPI

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SCPI Command Operation SG Series Programming

Command

Description

6.7

OUTPUT SCPI COMMAND SUBSYSTEM

This section first presents a tree summary of the OUTPut commands and then provides a tabular description.

6.7.1

OUTPUT SCPI Command Summary

OUTPut :ISOLation <boolean> :ISOLation? :POLarity <string> :POLarity? :PROTection :DELay <NRf> :DELay?

:FOLD <0|1|2> :FOLD?

:SENSe <boolean> :SENSe?

:STATe <boolean> :STATe? :TRIPped?

6.7.2

OUTPUT SCPI Command Reference

The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.

OUTPut :ISOLation <boolean> :ISOLation?

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

:POLarity?

:PROTection :DELay <NRf>

:DELay?

Output subsystem. C Sets the rear panel isolation relay control signal ON or OFF. Valid arguments are 1/ON or 0/OFF. Returns the state of the rear panel isolation relay control signal: 1 = ON 0 = OFF Changes the state of the polarity relay. This command requires that the isolation relay be open 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 will be generated. Returns the state of the polarity relay:

<NORM/0/OFF|INV/1/ON> Output Protection subsystem. N Sets the programmable time delay executed by the supply before

reporting output protection conditions after a new output voltage or current is specified. Functional granularity of +/- 0.5 seconds Returns the time delay to be executed by the supply. N

SCPI

N N

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SG Series Programming SCPI Command Operation

Command

Description

1/ON or 0/OFF.

SCPI

:FOLD <0|1|2>

:FOLD?

:SENSe <boolean>

:SENSe?

:STATe <boolean>

:STATe?

:TRIPped?

Sets the foldback (program down) mode of the supply. Valid arguments are 0 (OFF or do nothing, do not program down to zero), 1 (program down to zero upon entering constant-voltage mode), or 2 (program down to zero upon entering constant-current mode). Returns the set foldback (program down) mode of the supply. 0 = OFF; will not program down. 1 = will program down to zero upon entering constant-voltage

mode. 2 = will program down to zero upon entering constant current mode Sets the sense relay signal open or close. Valid arguments are

Returns the setting of the sense relay signal: 1 = ON 0 = OFF Sets the output to zero or the programmed value; opens or closes the isolation relay. Valid arguments are 1/ON or 0/OFF. *RST state value is ON. Returns the state of the output: 1 = ON 0 = OFF Returns the integer value 1 (TRIPPED) or 0 (UNTRIPPED) state of the output.

N N

C N

6.8

STATUS SCPI COMMAND SUBSYSTEM

This section first presents a tree summary of the STATus commands and then provides a tabular description.

Note: See Section 5 for further information.

6.8.1

STATUS SCPI Command Summary

STATus :OPERation :CONDition? :ENABle <NR1> :ENABle? :EVENt? :PRESet :PROTection :CONDition? :ENABle <NR1> :ENABle? :EVENt? :SELEct <NR1> :SELEct? :QUEStionable :CONDition? :ENABle <NR1> :ENABle? :EVENt?

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6-19

SCPI Command Operation SG Series Programming

Command

Description

6.8.2

STATUS SCPI Command Reference

The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.

STATus :OPERation :CONDition?

:ENABle <NR1>

:ENABle?

:EVENt?

:PRESet

:PROTection :CONDition?

:ENABle <NR1>

:ENABle?

:EVENt? :SELEct

<NR1>

:SELEct? :QUEStionable :CONDition?

:ENABle <NR1>

:ENABle?

:EVENt?

SCPI

Status subsystem. C Status Operation subsystem. C Returns the integer value of the Operation Condition Register. The query is supported but will always return “0” indicating operational condition. Sets the enable mask of the Operation Event Register allowing true conditions to be reported in the summary bit of the Operation Condition Register. Values are written and queried but have no effect on the Operation Condition Register. Returns the value of the current mask if the Operation Event Register. Returns the integer value of the Operation Event Register. This query is supported but always returns a value of “0” indicating operational condition. Sets the enable mask of the Operation Event Register and the Questionable Event Register to all 1’s. Status Protection subsystem. C Returns the integer value of the Protection Condition Register. Used to read the status of the power hardware. See section 6.2.3 for a detailed table of the various bits that make up this register. Sets the enable mask of the Protection Event Register, which allows true conditions to be reported in the summary bit of the Protection Condition Register. Returns the value of the current mask of the Protection Event Register. Returns the integer value of the Protection Event Register. C This command provides a means for selecting which fault bits from the protection event register (also called the fault register and can be read using the STAT:PROT:EVEN? command) are able to set the protection event flag bit in the SCPI status byte (readable using the *STB? command). It defaults to value 255 at power-on time, and never changes unless intentionally programmed to a new value. Returns the last selection value programmed. N Status Questionable subsystem. C Returns the integer value of the Questionable Condition Register. The query is supported but will always return “0” indicating operational condition. Sets the enable mask of the Questionable Event Register allowing true conditions to be reported in the summary bit of the Questionable Condition Register. Values are written and queried but have no effect on the Questionable Condition Register. Returns the value of the current mask of the Questionable Event Register. Returns the integer value of the Questionable Event Register. This query is supported but always returns a value of “0”, indicating operational condition.

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SG Series Programming SCPI Command Operation

6.9

SYSTEM SCPI COMMAND SUBSYSTEM

This section first presents a tree summary of the SYSTem commands and then provides a tabular description.

6.9.1

SYSTem :ERRor? :FAULt? :LOCAL <boolean> :LOCAL? :LOCKOUT <boolean> :LOCKout? :NET :AUTOIP <boolean> :AUTOIP? :DESC <string> :DESC? :DHCPMODE <boolean> :DHCPMODE? :DNS <string> :DNS? :GATE <string> :GATE? :HOST <string> :HOST? :IP <string> :IP?

:MAC? :MASK <string> :MASK?

:PORT <NRf> :PORT? :PRICONF <NR1> :PRICONF? :SECCONF <NR1> :SECCONF? :TERM <NRf> :TERM? :VERsion?

SYSTEM SCPI Command Summary

:LANLED <boolean> :LANLED?

:NETBUTTON <string> :PINGRESP <boolean> :PINGRESP?

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6-21

SCPI Command Operation SG Series Programming

Command

Description

the supply, since the normal GPIB mechanisms for transition between

1 is placed in

6.9.2

SYSTEM SCPI Command Reference

The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.

SYSTem :ERRor?

:FAULt?

:LOCAL <boolean>

:LOCAL?

:LOCKout <boolean>

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 return string length is 255 characters. The queue holds up to 10 error/entries. All entries are cleared by the *CLS command. Returns four numeric values separated by commas for the four system fault registers. See System Fault Registers (Table 6-7). Valid response is 128, 0, 0, 0 or 0, 0, 0, 0.

Response: <Fault1–8>, <Fault9–16>, <Fault17–24>, <Fault25–31> Forces the supply to local or remote state. <ON> or <1> sets operation to local mode. <OFF> or <0> sets the operation to remote mode. There are two noteworthy circumstances where this command may prove necessary. The first case involves using RS232 to communicate with

local and remote and back again do not exist when using RS232. The other case is when the REMOTE/LOCAL switch S1the ON position—thereby disabling the GPIB mechanism for transition from remote to local. Returns ON or 1 if in local mode. Returns OFF or 0 if in remote mode. The SYST:LOCAL:LOCKOUT <0|1|OFF|ON> command provides a means of controlling the local lockout functionality that is an alternative to the low level GPIB LLO command. Note: This command only works when Remote mode startup switch is ON.

In contrast, using the GPIB LLO low level command causes the supply to be placed into the local lockout state. To place the supply into the local lockout state, use the SYST:LOCAL:LOCKOUT command.

SCPI

:LOCKOUT? SYST:NET :AUTOIP

:AUTOIP? :DESC

<string> :DESC?

:DHCPMODE <boolean>

Returns 0 (off) or 1 (on) N Network device N

Sets the network Auto IP mode in the Primary configuration without affecting the Secondary configuration.. 0 = disable AutoIP; 1 = enable AutoIP Returns 1 if AutoIP is enabled in the Primary configuration. Returns 0 if AutoIP is disabled in the Primary configuration. Set the network Description, a 36 character alphanumeric string

Returns the network Description. N Sets the network DHCP Mode in the Primary configuration without affecting the Secondary configuration. 0 = disable DHCP; 1 = enable DHCP

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N N

SG Series Programming SCPI Command Operation

Command

Description

:NETBUTTON

Returns 0 if ping response is not enabled.

to 65535.

Returns the network TCP/IP socket listening port

. N

1 = DHCP; 2 = DHCPAUTOIP; 0 = STATICIP

SCPI

:DHCPMODE? :DNS

<string> :DNS? :GATE

<string> :GATE? :HOST

<string> :HOST?

:IP <string>

:IP?

:LANLED

:LANLED?

:MAC?

:MASK <string>

:MASK?

:PINGRESP <boolean>

:PINGRESP? :PORT <NRf> :PORT? :PRICONF <NR1>

:PRICONF? :SECCONF

<NR1> :SECCONF?

Returns 1 if DHCP Mode is enabled in the Primary configuration. Returns 0 if DHCP mode is disabled in the Primary configuration. Sets the network DNS IP address for the device. String is in the format “NNN.NNN.NNN.NNN” where “NNN” = 0 through 255, inclusive. Returns the network DNS address for the device. N Sets the network gateway IP address for the device. String is in the format “NNN.NNN.NNN.NNN” where “NNN” = 0 through 255, inclusive. Returns the network gateway IP address for the device. N Set the network Host Name, a 15-character (maximum) alphanumeric string. (Must be limited to 15 characters for LXI compliance) Returns the network Host Name N Sets the Primary configuration to STATICIP mode and sets the network IP address for the device. String is in the format “NNN.NNN.NNN.NNN” where “NNN” = 0 through 255, inclusive. Returns two IP addresses: the first is the IP address set to be used when the system boots up; the second is the IP address presently in use by the power supply. (The first address will either be 0.0.0.0. if the Primary configuration is DHCP or DHCP+AUTOIP, or it will be the static IP last specified). 1 causes LANLED to blink. (Used to identify a unit in a rack). 0 causes LANLED to stop blinking.

Returns blink state of the LAN LED: 0 – not blinking; 1 – blinking. Returns the network MAC address. xx:xx:xx:xx:xx:xx (Hexadecimal digit pairs) Set the network Subnet Mask for the device. String is in the format “NNN.NNN.NNN.NNN” where “NNN” = 0 through 255, inclusive. Returns the network Subnet Mask for the device. N

Returns configuration parameters to factory default. (Software equivalent of pressing the Reset switch on the rear panel of the power supply). You must cycle the power to effect the change. The access string is “6867.”

Set ping response: 1 = unit responds to ping (response enabled). 0 = ping response is not enabled. Returns 1 if ping response is enabled.

Set the network TCP/IP socket listening port. Valid values are 1025

Sets Primary IP configuration. Returns currently set Primary IP configuration

1 = DHCP; 2 = DHCPAUTOIP; 0 = STATICIP Sets Secondary IP configuration.

1 = DHCP; 2 = DHCPAUTOIP; 0 = STATICIP Returns currently set Secondary IP configuration. 1 = DHCP; 2 = DHCPAUTOIP; 0 = STATICIP

N N

N N N N

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6-23

SCPI Command Operation SG Series Programming

Command

Description

Bit Position

Bit Weight

Fault1

–8

Fault9

–16

Fault17

–24

Fault25

–31

SCPI

Sets the return string terminators to be used by the device. Factory

:TERM <NRf>

:TERM?

:VERsion?

set to 3. The valid range is 1-4. 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 terminators to be used by the device. N Returns a numeric value corresponding to the SCPI version number for which the instrument complies. 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., 1995.0)

Table 6-6 Table 6-7. System Fault Registers

7 128 Channel 1 not used not used not used 6 64 not used not used not used not used 5 32 not used not used not used not used 4 16 not used not used not used not used 3 8 not used not used not used not used 2 4 not used not used not used not used 1 2 not used not used not used not used 0 1 not used not used not used not used

The SYStem:FAULt? query returns 4 numeric values separated by commas. Each value is the decimal equivalent of the total bit weights for that System Fault Register as described in the table above.

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SG Series Programming SCPI Command Operation

Command

Description

SCPI

6.10

HTRIGGER SCPI COMMAND SUBSYSTEM

This section applies only to units with the External User Interface (Currently only available on Ethernet versions).

The HTRIGGER function allows the user to apply an External User Interface input signal to initiate a sequence or a voltage or current ramp. Once a hardware trigger is run, Arm goes to 0 (not armed); however, the last loaded sequence remains in memory.

6.10.1

HTRIGGER SCPI Command Summary

HTRIGger :ABORt :RAMP

:SEQuence (Available only with SGI power supplies – see Section 6.13.)

:SEQuence? (Available only with SGI power supplies – see Section 6.13.) :ARM (Available only with SGI power supplies – see Section 6.13.) :ARM? (Available only with SGI power supplies – see Section 6.13.)

6.10.2

HTRIGger :ABORt

:RAMP

:SEQuence <string>

:SEQuence? :ARM <boolean>

:ARM?

HTRIGGER SCPI Command Reference

Hardware trigger subsystem. N Stops the execution of a currently running hardware trigger

function. In addition:

For Ramp: Clears all settings of voltage and current. For Sequence: Sets the Arm function to 0 (not armed). Executes voltage or current ramping function previously programmed by the SOURce command, i.e.,

SOURce:VOLTage:RAMP SOURce:CURRent:RAMP

(SGI only); loads a Sequence to be initialized by the external Hardware Trigger. This command must be followed by the HTRIG:ARM command before the Hardware Trigger becomes operational. (SGI only); returns the currently loaded sequence name N (SGI only); readies the last loaded sequence to run when the external Hardware Trigger signal is issued. 1 = Ready to run sequence when Hardware trigger is engaged. 0 = Not Armed, Hardware trigger is ignored NOTE: To arm a different sequence, issue the HTRIG:SEQ command first. (SGI only); returns the ready status of the last loaded sequence. 1 = Ready to run sequence when Hardware trigger is engaged. 0 = Not Armed, Hardware trigger is ignored NOTE: To load a new sequence to be armed you must issue the HTRIG:SEQ command first.

M550129-03 Rev K

6-25

SCPI Command Operation SG Series Programming

Command

Description

SCPI

SOURce:CURRent:RAMP

Valid arguments are 1 (Voltage), 2 (Current), or 3 (Both).

6.11

TRIGGER SCPI COMMAND SUBSYSTEM

This section describes the programming soft trigger function.

6.11.1

TRIGGER SCPI Command Summary

TRIGger

:ABORt

:RAMP

:TYPE <1|2|3>

6.11.2

TRIGGER SCPI Command Reference

The letter “C” in the “SCPI” column means that the command syntax is SCPI compliant; an “N” in the “SCPI” column means that the command syntax is not part of the SCPI definition.

TRIGger

:ABORt

:RAMP

:TYPe<1|2|3>

Trigger subsystem. C Stops the execution of a currently running trigger function, and clears all settings of voltage and current. Executes voltage or current ramping function previously programmed by the SOURce command, i.e.,

SOURce:VOLTage:RAMP Executes voltage and current values previously programmed by

the SOURce command i.e.,

SOURce:VOLTage:LEVel:TRIGger SOURce:CURRent:LEVel:TRIGger

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SG Series Programming SCPI Command Operation

6.12

6.12.1

CALibrate :DATA <NRf><NRf><NRf><NRf><NRf><NRf><NRf><NRf><NRf><NRf> :DATE <NRf>

:CURRent <NRf> :CURRent? :MEASure:CURRent:AVErage <NR1> :MEASure:CURRent:AVErage? :VOLTage <NRf> :VOLTage? [:AMPLitude] <NRf> [:AMPLitude?] :PROTection <NRf> :PROTection? :MEASure :CURRent :ADC? :CALCulate :GAIN <NRf> :GAIN? :OFFSet <NRf> :OFFSet? :POINt <1|2> <NRf> :VOLTage :ADC? :CALCulate :GAIN <NRf> :GAIN? :OFFSet <NRf> :OFFSet? :POINt <1|2> <NRf>

CALIBRATION SCPI COMMAND SUBSYSTEM

Note: See Section 7 for calibration procedures.

Please refer to the power supply manual for further information before performing calibration procedures. Calibration must be performed by qualified personnel who appropriately deal with attendant hazards. If calibration is not

CAUTION

performed properly, functional problems could arise, requiring that the supply be returned to the factory.

CALIBRATION SCPI Command Summary

(applies to GPIB; for Ethernet, see CAL:MOD:LASTCALDATE and CAL:MOD:NEXTCALDATE)

:DATE? :INITial

:MODel :LASTCALDATE :LASTCALDATE? :NEXTCALDATE :NEXTCALDATE?

(applies to GPIB; for Ethernet, see CAL:MOD:LASTCALDATE and CAL:MOD:NEXTCALDATE)

:POWERON :POWERON? :RESET

(applies to Ethernet only; for GPIB, see CAL:DATE)

(applies to Ethernet only; for GPIB, see CAL:DATE?)

(applies to Ethernet only)

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6-27

SCPI Command Operation SG Series Programming

:RESET? :SAVELAST <0|1> :SAVELAST?

:OUTPut :CURRent :CALCulate :DAC <NR1> :FIVEPoint <1|2|3|4|5> :FIVEPoint?

(applies to Ethernet only)

:GAIN <NRf> :GAIN? :OFFSet <NRf> :OFFSet? :POINt <1|2> <NRf> :VOLTage :CALCulate :DAC <NR1> :FIVEPoint <1|2|3|4|5> :FIVEPoint?

(applies to Ethernet only)

:GAIN <NRf> :GAIN? :OFFSet <NRf> :OFFSet? :POINt <1|2> <NRf> :PROTection :CALCulate :DAC <NR1> :GAIN <NRf> :GAIN? :OFFSet <NRf> :OFFSet? :UNLock <string> :STORe

:LOCK

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AMETEK SFA Series Ethernet Programming User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual