Rockwell Automation Publication 1444-UM001D-EN-P - June 2018 511
CIP Objects Appendix A
As the special functions (126 and 127) are not the result of Voted alarms, there
is no definition of type - suggest fail-safe is adopted for these. Local Relay
Control also includes a Latching bit, to give a latching control to these special
functions.
0x00 defines the relay as disabled, multiple sources not allowed.
Table 261 - Relay Source Decoding
Bit Description
0 OFF
1…13 Voted Alarm Instance 1…13
Output Type: Alert
14…16 Reserved
17…29 Voted Alarm Instance 1…13
Output Type: Danger
30…32 Reserved
33…45 Voted ALARM INSTANce 1…13
Output type: TX OK
Higher Values Reserved
126 Dedicated, Bypass Active Relay
127 Dedicated, Fault Relay, Local Relay Control
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