Omron SYSMAC CJ1W-SCU21-V1, Руководство по эксплуатации

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CompoWay/F Master Protocol Appendix B
Send with ASCII Conversion, with Response:
(Sequence No. 600 (Hex 0258))
• Send word order: Rightmost to leftmost
• Receive word order: Leftmost to rightmost
This sequence converts the specified data beginning with the command code to ASCII and sends it to the
specified Unit. The response is converted to hexadecimal and stored starting at the specified word.
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. Frames are created and sent starting from the rightmost to leftmost word of the address in I/O mem-
ory.
606 (025E) Send word order: Leftmost to rightmost Receive word order: Leftmost to rightmost
607 (025F) Send word order: Rightmost to leftmost Receive word order: Rightmost to leftmost
Offset Contents (data format) Data
+0 Number of send data words
(4 digits Hex) 0005 to 00FA Hex (5 to 250 decimal)
+1 (Undefined) Node No. (2 digits
BCD) 00 to 99
+2 MRC
(2 digits Hex)
SRC (2 digits Hex) Set the command code for the required ser-
vice
+3 Number of send bytes (4 digits Hex) 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)
+4
on Send data (4-digit Hex) The data specified in hexadecimal here will
be converted to ASCII and the number of
bytes specified in S+3 will be sent.
Sequence
No.
Send sequence Receive sequence
1 2 3 4
5 6 7 8
Send data words Send frame
"56" "78" "12" "34"
Rightmost word
Leftmost word
1 2 3 4
5 6 7 8
Receive data words
Receive frame
"12" "34" "56" "78"
Rightmost word
Leftmost word
1 2 3 4
5 6 7 8
Send data words Send frame
"12" "34" "56" "78"
Rightmost word
Leftmost word
1 2 3 4
5 6 7 8
Receive data words
Receive frame
"12" "34" "56" "78"
Rightmost word
Leftmost word
Send data
First word of
send data Number of send data words +0
+1
+2
+3
+4
(Undefined)
MRC
SRC
Number of send bytes
Node No.
1 2 3 4
5 6 7 8
Send data words Send frame
"12" "34" "56" "78"