Omron CJ1W-SCU22, Руководство по эксплуатации, Страница: 361 / 478

R-27
A Standard System Protocol
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
R
-2
Com
p
o
W
a
y
/F Mast
er Pr
otoc
o
l
Re
f
R
-2-8
Str
ucture of
the Protocol
Receive Data Word Allocation (4th Operand of PMCR(260))
The received frames are stored in order from the leftmost word to the rightmost word of the I/O
memory address.
Offset Contents (data format) Data
+0 Number of receive data words 0003 to 00FA Hex (3 to 250 decimal)
+1 Response code (4 digits hex) The CompoWay/F command response code is
stored in hexadecimal code.
+2
on Receive data (4 digits hex) The read data is stored.
Receive data
storage words
+0
+1
+2
on
Number of receive data words
Response code
Receive data
1 2 3 4
5 6 7 8
Receive data words
Receive frame
"12" "34" "56" "78"
Rightmost word
Leftmost word