Allen-Bradley 1734-OB8S User Manual

Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 173
Get I/O Diagnostic Status from Modules in Logix Systems Appendix B
Class, Instance, and Attribute
Data for I/O Modules
Use the information in the following tables to configure your message
instruction.
Table 14 - Digital Safety Input Module - 1734-IB8S
Service Type Function Command (hex) Response (hex)
Service Code Class ID Instance ID Attribute ID Data
Size
Get Attribute
Single
Reads the cause for the safety digital input fault
that is specified by the Instance ID (1…8).
0E 3D 01…08 6E - 0: No error
01: Configuration invalid
02: External test signal error
03: Internal input error
04: Discrepancy error
05: Error in the other dual channel input
Table 15 - Digital Safety Input Module Test Outputs - 1734-IB8S
Service Type Function Command (hex) Response (hex)
Service Code Class ID Instance ID Attribute ID Data Size
Get Attribute
Single
Reads the cause of the test output fault that is
specified by the Instance ID (1…4).
0E 09 01…04 76 - 0 = No error
01: Configuration invalid
02: Overload detected
03: Cross circuit detected
05: Output ON error
06: Undercurrent detected for muting lamp
Set Attribute
Single
Configures the test output to turn off or hold
its last state after a communication error for an
output that is specified by the Instance ID.
10 09 01…04 05 1 byte
00: Clear
01: Hold
-
Table 16 - Digital Safety Output Module - 1734-OB8S
Service Type Function Command (hex) Response (hex)
Service Code Class ID Instance ID Attribute ID Data Size
Get Attribute
Single
Reads the cause for the safety digital output
fault that is specified by the Instance ID
(1…8).
0E 3B 01…08 6E - 0: No error
01: Configuration invalid
02: Over current detected
03: Short circuit detected
04: Output ON error
05: Error in the other dual channel output
06: N/A
07: N/A
08: Dual channel violation
09: Short circuit detected at safety output
Table 17 - Digital Safety Discrete Output Module - 1734-OBV2S
Service Type Function Command (hex) Response (hex)
Service Code Class ID Instance ID Attribute ID Data Size
Get Attribute
Single
Reads the cause for the safety digital output
fault that is specified by the Instance ID
(1…4).
0E 3B 01…04 6E - 0: No alarm
01: Configuration invalid
02: Over current detected
03: Short circuit detected
04: Output ON error
05: Error in the partner dual channel output
06: N/A
07: N/A
08: Dual channel violation
09: Short circuit detected at safety output

Allen-Bradley 1734-OB8S Specifications

General

Brand	Allen-Bradley
Model	1734-OB8S
Category	Control Unit
Language	English