Physical write, 1774-plc – Rockwell Automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command User Manual
Page 101
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7–14
Communication Commands
Publication 1770Ć6.5.16 - October 1996
physical write
Downloads data into the PLC data table or program memory.
Use this command to download the contents of a computer file into
PLC memory.
PLC-2
For PLC-2 processors, enter download mode must precede the first
physical write.
C
CMD
03
STS
TNS
ADDR
R
STS
TNS
CMD
43
Data (max. 244 bytes)
DST SRC
SRC DST
1774-PLC
C
CMD
03 STS
TNS
ADDR
R
STS
TNS
CMD
43
Data (max. 244 bytes)
DST SRC
SRC DST
PLC-3
The starting address is a PLC-3 physical address. The destination
interface module accepts this command after the source node has
successfully transmitted a shutdown request.
CMD
0F STS
FNC
08
TNS
C
CMD
4F
STS
TNS
R
TNS
DST SRC
SRC DST
Data (max. 238 bytes
or 119 words)
EXT
STS
The EXT STS field may be attached to the reply packet only when there is an error.
PLCĆ3 phys. address
•
PLCĆ2
•
1774ĆPLC
•
PLCĆ3