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Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Appendix A
CIP Objects
Relay Drive Test Enable
Relay drive test enable and settings are automatic based on higher-level
configuration such as Voted alarm allocations.
Bits 0…3 for relays 0…3, bit value is set to 1 if the test is enabled.
When enabled the test period configured in reflected in attributes 23, 24, 25,
26.
The routine relay drive circuit test applies only to fail-safe applications - where
the drive can be momentarily de-energized.
Failure of a routine drive circuit test is flagged in the status information that is
returned via the main module.
Get requests to certain attributes require data to be requested from the
auxiliary module itself. If that module is not present/active on the bus, an
embedded server error is returned in response to the request.
Table 251 - Common Services
Service
Code
Implementation
Service Name
Description of Service
Class
Instance
0x0E
x
x
Get Attribute Single
Returns the contents of the specified attribute