510 Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Appendix A CIP Objects
Note the following:
• The switching process does not change the underlying configuration
• As a tacho source 'switch' has been implemented, both tacho signals
appear OK
• Bit 23 of the Channel/TX/Speed, Status DWORD 4 flags that a tacho
source has been actively switched.
Local Relay Control
Bit-wise setting controlling how the local relay behaves under fault
circumstances.
There are three parameters using these bit definitions.
Table 260 - Local Relay Control
Bit Description
0 Main Module Fault
1 Auxiliary Module Fault
2 Auxiliary Bus Communication Fail
3 E/IP Communication Failure
4 Tacho Fault
5 Reserved
6 Reserved
7 Latching
Parameter Description
Auto Local Relay Control This parameter follows the logic that when associated with a fail-safe voted alarm a
main module fault also activate the relay (so the appropriate bits are set).
Otherwise it is zero. Read only to the user.
User Local Relay Control This parameter allows selection from a number of faults that can also be
considered.
Local Relay Control This parameter is a bit-wise logical AND of the Auto and User controls. This is what is
implemented and is read only to the user.
The objective being that more faults that the relay reacts to can be added (above
those faults implicit in the Voted Alarm selection) or dedicate the relay only to the
indication of certain selected faults.
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