Omron CJ1W-SCU32 Operation Manual page 144

4 Using Protocol Macros
A) Structure of Variable Area Read (MRC/SRC: 0101)* send message
MRC SRC
0 1 0
2
B) Structure of Variable Area Read (MRC/SRC: 0101)* receive message
MRC SRC
0 1 0
2
* MRC/SRC (0101) represents the Variable Area Read service available via CompoWay/F communication.
Detailed Example of CompoWay/F Message
CompoWay/F communication protocol for digital temperature controller E5@N
Send message
Node No.
STX
1
Receive message
Node No.
STX
1
For message details, refer to the E5CN/E5AN/E5EN/E5GN Digital Temperature Controllers Commu-
nications Manual (Basic Type) (Cat. No. H158).
4-8
Variable type Read start address
1
2 2
Response code
1
2 4
Subaddress
0 0
2 2
BCC calculation range
Subaddress
0 0
2 2
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Bit number
0 0
4 2
Read data (for number of elements)
Number of elements
Text
SID Command text
0
1
Text
End code Command text
2
BCC calculation range
Number of elements
4
×
8 or 4
BCC
ETX
1 1
BCC
ETX
1 1