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Appendix A
CIP Objects
502
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.
Table 251 - Common Services
Service
Implementation
Code
Class
Instance
0x0E
x
x
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.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Service Name
Description of Service
Get Attribute Single
Returns the contents of the specified attribute
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