Contents
17200138_002_C0 – (2016-10) –
Leybold
3
Contents
About This Document 2
Validity 2
Intended Use 2
Function 2
Abbreviations 4
1 Starting-Up of the Slave 5
1.1 Power Supply Requirements 5
1.2 Front View of the ITR 200 SD 5
1.3 Connectors on the Device 5
1.4 Side View of the ITR 200 SD 6
1.5 Indicators and Switches 6
2 Object Structure 8
2.1 Connection Object 8
2.1.1 Vendor-Specific Object Extension on Instance 2 Poll Connection 8
2.2 Identity Object 9
2.2.1 Class Attributes 9
2.2.2 Instance Attributes 9
2.3 S-Device Supervisor Object 10
2.3.1 Class Attributes 10
2.3.2 Instance Attributes 10
2.3.3 S-Device Supervisor Object States 15
2.3.4 S-Device Supervisor Common Services 15
2.3.5 S-Device Supervisor Object Specific Services 16
2.4 S-Analog Sensor Object 17
2.4.1 Class Attributes 17
2.4.2 Instance Attributes 18
2.4.3 Common Services 25
2.4.4 Object-Specific Services on Instance 1 / Pirani 25
2.4.5 Object-Specific Services on Instance 2 / Hot Cathode Ion Gauge 26
2.4.6 Behavior 27
3 I/O Assembly Object 28
3.1 I/O Assembly Instances 28
3.2 I/O Assembly Object Instance Data Attribute Format 29
Appendix A: Conversion of a Floating Number According to IEEE 754 30
Appendix B: Typical Start-Up Procedure 32
Appendix C: Literature 35
Declaration of Contamination 37
For cross-references within this document, the symbol (→ XY) is used, for cross-
references to further documents, listed under literature, the symbol (→ [Z]).
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