INFICON BPG402-SE User Manual

Communication Protocol

EtherCAT

for Bayard-Alpert Pirani Gauge

BPG402-SE

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General Information

Intended Use

EtherCAT–Interface

Product Identification

Caution

Caution: data transmission errors

Any attempt to simultaneously operate the gauge via the RS232C Serial Interface and EtherCAT interface may result in incorrect data and data transmission errors.

Therefore, it is inadmissible to simultaneously operate the gauge via

This Communication Protocol contains instructions for operating EtherCAT interfaces (slaves) together with a master.

The following description of the EtherCAT® interface is compliant to the EtherCAT specification of the EtherCAT Technology Group (ETG) and to the  "EtherCAT® Semiconductor Device Profile".

This manual describes the functionality of a EtherCAT slave and supports

• ETG.5003 Part 1: Common Device Profile (CDP) V0.9.0 (→  [12]) and

• ETG.5003 Part 2080: Specific Device Profile (SDP) Vacuum Pressure Gauge

V0.4.4 (→  [13]).

We reserve the right to make technical changes without prior notice.

In all communications with INFICON, please specify the information on the product nameplate. For convenient reference copy that information into the space provided below.

the RS232C Serial Interface and EtherCAT interface.

For safety information, specifications and operation instructions of the

vacuum gauges refer to the appropriate documents (→  [1], [2], [3]).

INFICON AG, LI-9496 Balzers

Model: PN: SN: V W

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Validity

Trademark

This document applies to BPG402 with EtherCAT interface.

353-590 (DN 25 ISO-KF) 353-591

(DN 40 CF-R)

The part number (PN) can be taken from the product nameplate.

If not indicated otherwise in the legends, the illustrations in this document correspond to the gauges with vacuum connection DN 25 ISO-KF. They apply to gauges with the other vacuum connection by analogy.

We reserve the right to make technical changes without prior notice.

EtherCAT® Beckhoff Automation GmbH, Deutschland

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Contents

General Information 2 Intended Use 2 EtherCAT–Interface 2 Product Identification 2 Validity 3 Trademark 3

Contents 4 1 Technical Data 6 2 Interface Connection 7 3 Operation 8

3.1 Introduction 8

3.2 Front and Side View 8

3.3 Indicators and Switches 9

3.3.1 <RUN> LED 9

3.3.2 <ERR> LED 9

3.3.3 <LA> LED (<IN> Port) 9

3.3.4 <LA> LED (<OUT> Port) 9

3.3.5 Device Address Switch 9

4 Object Structure 10

4.1 Object Dictionary structure 10

4.2 Communication Profile Objects (0x1000…0x1FFF) 11

4.3 Manufacturer-specific Profile Objects (0x2000...0x5FFF) 12

4.3.1 Manufacturer Configuration Module 1 12

4.3.2 Manufacturer Configuration Module 2 12

4.4 Input Area (0x6000…0x6FFF) 12

4.4.1 Input Common 12

4.4.2 Input Heat Transfer 12

4.4.3 Input Common 13

4.4.4 Input Hot Cathod Ion 13

4.4.5 Input Trip Point 1 14

4.5 Configuration Area (0x8000…0x8FFF) 15

4.5.1 Configuration Hot Cathode Ion 15

4.5.2 Configuration Trip Point 1 16

4.5.3 Configuration Trip Point 2 18

4.6 Information Area (0x9000…0x9FFF) 19

4.6.1 Information Heat Transfer 20

4.6.2 Information Common 21

4.6.3 Information Hot Cathode Ion 21

4.6.4 Information Trip Point 1/2 22

4.7 Device Area (0xF000...0xAFFF) 22

4.7.1 Semiconductor Device Profile 22

4.7.2 Module Profile List 22

4.7.3 Exceptions 22

4.7.4 Active Exception Status 22

4.7.5 Active Device Warning Details 23

4.7.6 Active Device Error Details 23

4.7.7 Latched Device Warning Details 24

4.7.8 Latched Device Error Details 24

4.7.9 Device Warning Mask 25

4.7.10 Device Error Mask 25

4.7.11 Comination Gauge 25

4.7.12 Trip Point Output All 26

4.7.13 Input Latch Local Timestamp 26

4.7.14 Configure Device 26

4.7.15 Information Device 27

4.7.16 Command Degas ON / OFF 28

4.7.17 Command Emission ON / OFF 28

4.7.18 Device Reset Command 29

4.7.19 Exception Reset Command 30

4.7.20 Store Parameters Command 30

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Appendix 32

A: Literature 32

For cross-references within this document, the symbol (→  [XY]) is used, for cross-references to other documents, listed under literature, the symbol (→  [Z]).

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1 Technical Data

EtherCAT interface

Dimensions [mm]

Further technical data →  [1], [2], [3].

Communication protocol protocol specialized for EtherCAT

Communication standards ETG.5003 Part 1: Common Device Profile (CDP)

ETG.5003 Part 2080: Specific Device Profile (SDP) Vacuum Pressure Gauge

Data rate 100 Mbps

Node address Explicit Device Identification

Physical layer 100BASE-Tx (IEEE 802.3)

Digital functions read pressure, select units (Torr, mbar, Pa)

emission control, degas function monitor gauge status, filament status safe state allows definition of behavior in case of error detailed alarm and warning information

Analog functions 0 … 10 V analog output pressure indication

two setpoint relays A + B

Setpoint relays

Range Relay contact Hysteresis Contact rating

-9

1×10

… 100 mbar n.o. potential free 10 % of reading ≤30 V / ≤0.5 A (dc)

EtherCAT connector 2 × RJ45, 8-pin (socket)

<IN>: EtherCAT input <OUT> EtherCAT output

Cable shielded, special Ethernet Patch Cable or

Crossover Cable (CAT5e quality or higher)

Cable length ≤100 m

Process data Fixed PDO mapping and configurable PDO

mapping

Mailbox (CoE) SDO requests, responses and information

ERRRUN

111

FIL

DN 25 ISO-KF

DN 40 CF-R

LA LA

OUTIN

PWR

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2 Interface Connection

Making an EtherCAT interface cable

Cable type

Procedure

For operating the BPG 402 gauge via EtherCAT, two interface cables conforming to the EtherCAT standard are required.

If no such cables are available, make two according to the following indications.

Ethernet Patch Cable or Crossover Cable (CAT5e quality) with FCC68 connector.

 Pin assignment:

FCC68, 8-pin, male, soldering side

Pin Signal Description

1 TD+ Transmission Data +

2 TD- Transmission Data -

3 RD+ Receive Data +

4 nu not used

5 nu not used

6 RD- Receive Data -

7 nu not used

8 nu not used

Pin assignment of the D-Sub 15-pin sensor connector according to the respective operating manual (→  [1], [2], [3]).

 Plug the EtherCAT (and sensor) cables connector into the gauge: From the

previous device the cable connected to OUT port has to be connected to the BPG402 <IN> port. And the cable from the BPG402 <OUT> port has to be connected to the next device's <IN> port.

FCC68 cable <OUT> port

FCC68 cable

<IN> port

Sensor cable

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3 Operation

3.1 Introduction

3.2 Front and Side View

3 2

Via the EtherCAT interface, the following and further data are exchanged in the standardized EtherCAT protocol:

• Pressure reading

• Pressure unit (Torr, mbar, Pa)

• Status and error messages

• Status of the switching functions

• Set Trip Point for switching functions

Caution

Caution: data transmission errors

Any attempt to simultaneously operate the gauge via the RS232C Serial Interface and EtherCAT interface may result in incorrect data and data transmission errors.

Therefore, it is inadmissible to simultaneously operate the gauge via

Position Label Function

the RS232C Serial Interface and EtherCAT interface.

1 x1 Address Switch × 1, hexadecimal

2 x10 Address Switch × 10, hexadecimal

3 FIL Fullscale adjustment push button

4 RUN EtherCAT Status LED

5 ERR Error LED

6 IN EtherCAT IN connector

7 LA Link activity EtherCAT IN

8 OUT EtherCAT OUT connector

9 LA Link activity EtherCAT OUT

10 PWR Sensor cable connector

(Power, analog I/O, RS232C I/O and Relay contacts)

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3.3 Indicators and Switches

3.3.1 <RUN> LED

RUN

3.3.2 <ERR> LED

ERR

3.3.3 <LA> LED (<IN> Port)

3.3.4 <LA> LED (<OUT> Port)

OUT

3.3.5 Device Address Switch

x10

Displays the operating status.

Color LED State Description

off INIT (initialization status) or no power applied to device.

green

blinking

(200 ms on 200 ms off)

single flash

(200 ms on

1000 ms off)

PREOP (pre-operational status).

SAFEOP (safe-operational status).

Communication of cyclic data transfer running. Input values available, output values written to the device but not updated on device output.

on OP (operational status).

Displays the error content.

Color LED State Description

off No error or no power applied to device.

red

blinking

(200 ms on 200 ms off)

single flash

(200 ms on

1000 ms off)

double flash

(200 ms on

200 ms off 200 ms on

1000 ms off)

Error occurred (see error parameter).

Slave device application has changed the EtherCAT state autonomously, due to local error (see error parameter).

An application watchdog timeout has occurred. Sync Manager Watchdog timeout or communication timeout occurred.

on A critical communication or application controller error has

occurred. Application controller is not responding any more (PDI Watchdog Timeout detected by ESC)

Displays the input status.

Color LED State Description

off Port not connected or no power applied to device.

green

blinking Port connected and communication active.

on Port not connected but no communication.

Displays the output status.

Color LED State Description

off Port not connected or no power applied to device.

green

blinking Port connected and communication active.

on Port not connected but no communication.

During device initialization, the device address switches are read by the device firmware. This device address is supported to the master as Explicit Device Identification.

Example: Value of the Explicit Device ID = 0xDD (dec 221): 0x10 * 0xD (dec 208) + 0x1 * 0xD (dec 13)

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4 Object Structure

4.1 Object Dictionary structure

This chapter describes the CANopen over EtherCAT (CoE) Object Dictionary.

The objects in the CoE Object Dictionary can be accessed with SDO services, and many of the dictionary objects can be mapped for cyclic communication in PDOs. Each object is addressed using a 16-bit index and an 8-bit subindex.

The following table presents the overall layout of the standard Object Dictionary.

Index (hex.) Object dictionary area

1000 – 1FFF Communication profile area 2000 – 5FFF Manufacturer-specific profile area

6000 – 6FFF Input area

7000 – 7FFF Output area

8000 – 8FFF Configuration area

9000 – 9FFF Information area

A000 – AFFF Diagnosis area

B000 – BFFF Service Transfer area

C000 – EFFF Reserved area

F000 – FFFF

Profile Specific Area

Device area

Explanations for the abbreviations in the columns of the tables are given below:

Abbr. Description

Access SDO read/write access

• RO: object can only be read by the SDO service

• RW: object can be both read and written by the SDO service

CoE CAN application protocol over EtherCAT

Index Object Index (hex.) (address of an object)

NV Nonvolatile; attribute value is maintained through power cycles

Object Abstract representation of a particular component within a device,

which consists of data, parameters, and methods.

PDO Process Data Object. Structure described by mapping parameters

containing one or several process data entities.

PM PDO mapping

• Rx: object can be mapped into an Rx PDO

• Tx : object can be mapped into a Tx PDO

RxPDO Receive PDO. A Process Data Object received by an EtherCAT slave.

SDO Service Data Objects. CoE asynchronous mailbox communications

where all objects in the Object Dictionary can be read and written.

SI Subindex (hex.) (sub-address of an object)

Type Data Type

• BOOL, BIT = 1 bit. Boolean (0 = false, 1 = true)

• USINT, BYTE = 8 bit. Unsigned Byte

• UINT = 16 bit. Unsigned integer value

• UDINT = 32 bit. Unsigned integer value

• ULINT = 64 bit. Unsigned integer value

• REAL = 32 bit. Floating point

• V_STRING = 8×n bit. Visible string (1 byte for character)

TxPDO Transmit PDO. A Process Data Object sent from an EtherCAT slave.

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4.2 Communication Profile Objects (0x1000…0x1FFF)

Index SI DataType NV Access PM Name

1000 UDINT RO Device Type

1008 V_STRING RO Manufacturer Device name: BPG402

1009 V_STRING RO Manufacturer Hardware Version

100A V_STRING RO Manufacturer Software Version

1010 0x01 UDINT RW Store Parameters

1011 0x01 UDINT RW Restore Default Parameters

1018 RO Identity Object

0x01 UDINT RO Vendor ID

0x02 UDINT RO Product Code

0x03 UDINT RO Revision Number

0x04 UDINT RO Serial Number

10F8 ULINT RO Timestamp Object

1A00 PM RW TxPDO Transmit PDO Mapping Module 1

0x01 BIT Reading Valid Module 1

0x02 BIT Overrange Exceeded Module 1

0x03 BIT Underrange Exceeded Module 1

0x04 BIT Padding Bits 1 (5 bit)

0x05 REAL Sensor Value Module 1

0x06 UDINT Trip Point Output All Instance

1A01 PM RW TxPDO Transmit PDO Mapping

1A02 PM RW TxPDO Transmit PDO Mapping Module 2

0x01 BIT Reading Valid Module 2

0x02 BIT Overrange Exceeded Module 2

0x03 BIT Underrange Exceeded Module 2

0x04 BIT Padding Bits 1 (5 bit)

0x05 REAL Sensor Value Module 2

1A03 PM RW TxPDO Transmit PDO Mapping

The objects of the communication profile describe the basic EtherCAT properties of the BPG402 and are common to all EtherCAT slaves using the CoE communication protocol. The objects are described in following table:

0x0820138B => 0x820 = dec 2080 ; 0x138B = dec 5003

Read: Bit 0 = 1: slave saves the backup entries when writing 0x1010:01 with 0x65766173 Bit 1-31 = 0

Write: With the value 0x65766173 the backup entries will be stored to non-volatile memory of the slave

Read: Bit 0 = 1: slave supports the restoring of backup entries with the default values when writing 0x1011:01 with 0x64616F6C Bit 1-31 = 0

Write: With the value 0x64616F6C the backup entries will be restored with the default values

Module 1, User Mapping

Module 2, User Mapping

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