Omron CS1W-SCU21 Operation Manual page 233

CompoWay/F Master Protocol
2. The read data is returned as 4-digit hexadecimal as follows: F0019999 to 00099999 Hex.
The 3rd and 4th operands of the PMCR(260) instruction are specified as follows.
Send Data Word Allocation (3rd Operand of PMCR(260))
Receive Data Word Allocation (4th Operand of PMCR(260))
Broadcast with ASCII Conversion, No Response
(Sequence No. 601 (Hex 0259))
This sequence converts the specified data beginning with the command code to ASCII and broadcasts it. No
responses are received.
Send Data Word Allocation (3rd Operand of PMCR(260))
Note 1. Set the number of send bytes to twice the number of bytes in memory. This is necessary because the
data is converted to ASCII data before being sent.
2. When hexadecimal data is converted to ASCII data, data is sent starting from the send data word with
the largest offset. This is done because ladder programming handles data in 4-byte units.
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Offset Contents (data format)
+0 Number of send data words
(4 digits Hex)
+1 (Undefined)
+2 MRC
(2 digits Hex)
+3 Number of send bytes (4 digits BCD)
+4 Send data (12 digits Hex)
+5
+6
Offset Contents (data format)
+0 Number of receive data words
(4 digits Hex)
+1 Response code (4 digits Hex)
+2 Receive data (8 digits Hex)
+3
+0
First word of Number of send data words
send data
+1
MRC
+2
+3
+4
Offset Contents (data format)
+0 Number of send data words
(4 digits Hex)
+1 (Undefined)
+2 MRC
(2 digits Hex)
+3 Number of send bytes (4 digits Hex)
+4 Send data (4-digit Hex)
on
0007 Hex
Node No. (2 digits 0000 Hex
BCD)
SRC (2 digits Hex) 0101 Hex
000C Hex
C000 Hex
0000 Hex
0001 Hex
EX is stored at reception (0004 Hex)
The response code will be stored in hexa-
decimal form.
The normal end response code is 0000.
The 4 bytes of read data.
(Undefined)
SRC
Number of send bytes
Send data
0005 to 00FA Hex (5 to 250 decimal)
---
SRC Set the command code for the required ser-
(2 digits Hex) vice
Number of data bytes from the next byte
after the command code until the byte just
before the ETX.
0000 to 03D8 Hex (0 to 984 decimal)
The data specified in hexadecimal here will
be converted to ASCII and the number of
bytes specified in S+3 will be sent.
Appendix B
Data
Data
Data