Omron CJ1W-SCU32 Operation Manual page 366

A Standard System Protocol
Receive Data Word Allocation (4th Operand of PMCR(260))
Receive data
storage words
Offset
+0 Number of receive data words
+1 Response code (4 digits hex)
+2 Parameter type (4 digits hex)
+4 First read address (4 digits hex)
+5 Read data (4 digits hex)
on
The received frames are stored in order from the leftmost word to the rightmost word of the I/O
memory address.
R-32
Number of receive data words
+0
Response code
+1
Parameter type
+2
First read address
+3
Number of elements
+4
Read data
+5
on
Contents (data format)
Receive frame
"12" "34" "56" "78"
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
0006 to 00FA Hex (6 to 250 decimal)
The CompoWay/F command response code is stored in
hexadecimal code.
The parameter type is stored in hexadecimal code.
The first read address is stored in hexadecimal code.
The read data is stored.
Receive data words
5 6 7 8 Rightmost word
1 2 3 4 Leftmost word
Data