Download 1770-6.5.16, Front Cover

7–14
Communication Commands
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.
• PLC2
• 1774PLC
• PLC3
PLC-2
For PLC-2 processors, enter download mode must precede the first
physical write.
C
DST SRC CMD STS
03
TNS
R
SRC DST CMD STS
43
TNS
ADDR
Data (max. 244 bytes)
ADDR
Data (max. 244 bytes)
1774-PLC
C
DST SRC CMD STS
03
TNS
R
SRC DST CMD STS
43
TNS
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.
SRC CMD STS
0F
TNS
FNC
08
CMD
STS
4F
TNS
TNS
EXT
STS
C
DST
R
SRC DST
PLC3 phys. address
Data (max. 238 bytes
or 119 words)
The EXT STS field may be attached to the reply packet only when there is an error.
Publication 17706.5.16 - October 1996