Omron SYSMAC CJ1W-SCU21-V1, Operation Manual

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Host Link FINS Command Master Appendix D
DM AREA READ
(Sequence No. 754 (Hex 02F2)
This sequence sends command code 0101 hex to the specified Host Link Unit, reads the contents of consecu-
tive DM Area words, and stores the data starting from the designated word.
Send Data Word Allocation (3rd Operand of PMCR(260))
Receive Data Word Allocation (4th Operand of PMCR(260))
Offset Contents (data format) Data
+0 Number of send data words
(4 digits hex) Always 0005 hex (5 decimal)
+1
Host Link unit
No.
(2 digits BCD) Remote destina-
tion network
address (DNA)
(2 digits hex) Host Link unit number: 00 to 31
Remote destination network address
(DNA): 00 to 7F hex
+2 Remote destina-
tion node
address (DA1)
(2 digits hex) Remote destina-
tion unit address
(DA2)
(2 digits hex) Remote destination node address
(DA1): 00 to FE hex
Remote destination unit address (DA2):
00 to FE hex
+3
First read address (4 digits hex) 0000 to 7FFF hex
Specify the first read address
(4 digits hex)
+4 Number of read elements
(4 digits hex) 0001 to 00F0 hex
Specify the number of read elements
(4 digits hex)
+0
+1
+2
+3
+4
First word of
send data
Number of read elements
Number of send data words
First read address
Host Link unit number
Remote destination node
address
Remote destination
network address
Remote destination
unit address
Offset Contents (data format) Data
+0 Number of receive data words
(4 digits hex) 0003 to 00F2 hex (3 to 250 decimal)
+1
End code (4 digits hex) The end code is stored in hexadecimal.
+2 Receive data The receive data is stored.
+0
+2
+1
Read data
Receive data
storage words
Number of receive data words
End code