Table A-35 Class Attribute
No. Service Type Name
1 get UINT16 Revision
2 get UINT16 Max Instance
3 get UINT16 Num of Instances
Table A-36 Instance Attribute
No. Service Type Name  Value/explanation
3 get Array of 
UINT8
Assembly 1 byte array 
Connection Management Object, Instance Number: 6 hex
Supported services
Class  ● Get Attribute all
● Get Attribute single
Instance  ● Forward open
● Forward close
● Get Attribute single
● Set Attribute single
Table A-37 Class Attribute
No. Service Type Name
1 get UINT16 Revision
2 get UINT16 Max Instance
3 get UINT16 Num of Instances
Table A-38 Instance Attribute
No. Service Type Name  Value/explanation
1 get UINT16 OpenReqs  Counters
2 get UINT16 OpenFormat Rejects  Counters
3 get UINT16 OpenResource Rejects  Counters
4 get UINT16 OpenOther Rejects  Counters
5 get UINT16 CloseReqs  Counters
6 get UINT16 CloseFormat Rejects  Counters
7 get UINT16 CloseOther Rejects Counters
8 get UINT16 ConnTimeouts  Counters
Number of bus errors 
Communication
A.1 Communication
Industrial Security
194 Configuration Manual, 08/2017, A5E36912609A