Rockwell Automation 2706-P42_P43_P44_P72_P74_P92_P94 InView Marquee Message Display User Manual - Manual (Page 103)

Publication 2706-UM016D-EN-P - March 2006
InView Protocol 4-37
Transmission:
Transmission for Updating Variable Registers with 10 Frame Broadcast
Response: NONE
Update Variables using a Modbus ASCII 10 frame in Guaranteed
mode
This method allows the ability to update more than one variable in a
specific display address. A maximum of 60 registers can be updated in
one transmission. Unused high order bits must be set to zero. The
following is an example of updating variables 1, 2, and 3 with values
23, 734, and 7 respectively in display address 003.
Below is an example of a preset multiple register transmission.
Transmission:
Query for Updating Variable Registers using a 10 Frame
Beginning of
Frame ADDR FUNC H.O.
ADDR L.O.
ADDR QUANTITY BYTE CNT DATA
: FF 10 00 00 0003 06 0018 0035 0038
LRC
Error EOF Ready to rec. resp
63 CR LF
Beginning
of Frame ADDR FUNC H.O.
ADDR
L.O.
ADDR
QUANTITY BYTE CNT DATA
: 03 10 00 00 0003 06 0017 02DE 0007
LRC
Error
EOF Ready
to rec.
resp
E6 CR LF