Rockwell Automation 1440-VAD02-01RA XM-123 Aeroderivative Module - Manual (Page 104)

Publication GMSI10-UM003D-EN-P - May 2010
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Bit-Strobe Message Format
The Bit-Strobe command sends one bit of output data to each XM slave
whose node address appears in the master’s scanlist.
The Bit-Strobe command message contains a bit string of 64 bits (8 bytes) of
output data, one output bit per node address on the network. One bit is
assigned to each node address supported on the network (0...63) as shown in
Figure B.1.
Figure B.1 Bit-Strobe Command
The XM modules use the bit received in a Bit-Strobe connection as a trigger
event. When the bit number corresponding to the XM module’s node address
is set, the XM module will collect the triggered trend data.
Note that the XM modules do not send data in the Bit-Strobe response.
Relay Status Descriptions
Relay Status Value Description
0 Not Activated
1 Activated