Omron SYSMAC CJ1W-SCU41-V1 User Manual

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CompoWay/F Master Protocol Appendix B
Variable Area Write
(Sequence No. 611 (Hex 0263))
This sequence writes the contents of the specified number of elements from the address of the specified variable type to
the specified node number.
Send Data Word Allocation (3rd Operand of PMCR(260))
Set the number of write bytes to twice the number of send data in memory. This is necessary because the data
is converted to ASCII data before being written. When hexadecimal data is converted to ASCII data, data in the
first write address +0 and +1 is stored in I/O memory in order from the rightmost word to leftmost word and the
data is sent starting from the send data word with the largest offset. This is done because ladder programming
handles data in 2-word (4-byte) units.
Receive Data Word Allocation (4th Operand of PMCR(260))
Offset Contents (data format) Data
+0 Number of send data words 0007 to 00FA hex (7 to 250 decimal)
+1 (Undefined) Node No.
(2 digits BCD)
00 to 99
+2 Variable type
(2 digits hex)
Set the area type (2 digits) and the first
read word (6 digits). The leftmost byte of
the first write address specifies the address
and the rightmost byte specifies the bit
location. Set the rightmost byte to 00 when
bit access is not required.
+3 First write address
(6 digits BCD)
+4 Number of elements
(4 digits BCD)
Set the number of elements to write.
+5 Number of bytes to write
(4 digits hex)
Set the number of bytes to send in the com-
munications line.
Note: The data is converted to ASCII in the
communications line, so the number of data
bytes is doubled from S+6 and onwards.
+6
on
Write data Set the data to write from the first write
address.
Write data
First word of
send data
Number of send data words
+0
+1
+2
+3
+6
(Undefined)
First write address
Variable type
Node No.
Number of elements+4
Number of bytes to write
+5
0003
0002
0001
0000
4
3
2
1
0000 0001 0003
1 2 3 4
000 2
Send data words
Send frame
Offset Contents (data format) Data
+0 Number of receive data words Always 0002 hex (2 decimal)
+1 Response code (4 digits hex) The CompoWay/F command response
code is stored in hexadecimal code.
Receive data
storage words
+0
+1
Number of receive data words
Response code

Omron SYSMAC CJ1W-SCU41-V1 Specifications

General

Brand	Omron
Model	SYSMAC CJ1W-SCU41-V1
Category	Network Hardware
Language	English