INFICON T-Guard Leak Detection Sensor Interface description - Manual (Page 2)

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Table of Contents
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Table of Contents
1 General 3
1.1 Serial RS232 and Field Bus Interfaces 3
1.2 RS232 Interface Connecting Cable 4
2 RS232 ASCII Interface Protocol 5
2.1 Communication Parameters 5
2.2 Command Format 5
2.3 List of ASCII Commands 6
2.3.1 Error Messages 17
2.4 Examples of programming 17
2.4.1 Accumulation Mode 18
2.4.2 Carrier Gas Mode 20
3 Using Hyperterm for the ASCII Protocol 22
3.1 Communication Parameters 22
3.2 Settings for Hyperterm 22
4 RS232 Binary Interface Protocol 25
4.1 Communication Parameters 25
4.2 Binary Command Format 25
4.2.1 Command List Binary Mode 26
4.3 Error Messages Binary Mode 32
5 Profibus-DP Protocol 33
5.1 Preface 33
5.2 Process Data Mapping for Cyclic Data Transfer 33
5.2.1 Read Process Data (PLC-> Leak Detector) 33
5.2.2 Write Process Data (Leak Detector -> PLC) 34
5.3 Acyclic Data Transfer 35
5.3.1 Addressing Rules for Acyclic Access 35
5.3.2 Application Data Instances 36
5.4 Hardware Configuration 37
5.4.1 Assignment of the Profibus Address 38
5.4.2 Diagnosis with the T-Guard™ Info Menu 38