Rockwell Automation 2706-P42_P43_P44_P72_P74_P92_P94 InView Marquee Message Display User Manual - Manual (Page 101)

Publication 2706-UM016D-EN-P - March 2006
InView Protocol 4-35
Response for a Priority Message
Priority Messaging using a Modbus ASCII Transmission
This method writes to the first register in the message queue (40103).
When this happens, the previous message in the queue is replaced
with the new message to be activated. This is an example sending a
Priority Message #0800 to all displays that are on the network.
Transmission:
T ransmission for Priority Messaging
Response: NONE
Update a Variable using a Modbus ASCII 06 Frame in Broadcast
Mode (Recommended)
This method writes (or loads) variable data to the appropriate variable
registers in all displays. The following is an example of loading
variable 20 (register 40020) with the value of 3656 for all displays on
the network.
Transmission:
Transmission to Update a Variable Register with 06 Frame Broadcast
Response: NONE
Beginning
of Frame ADDR FUNC H.O.
ADDR
L.O.
ADDR
DATA LRC
Error
EOF Ready to
rec. resp
: 01 06 00 66 0063 30 CR LF
Beginning
of Frame ADDR FUNC H.O.
ADDR
L.O.
ADDR
DATA LRC
Error
EOF Ready to
rec. resp
: FF 06 00 66 0320 72 CR LF
Beginning
of Frame ADDR FUNC H.O.
ADDR
L.O.
ADDR
DATA LRC
Error
EOF Ready to
rec. resp
: FF 06 00 13 0E48 92 CR LF