Omron SYSMAC CJ1W-SCU21-V1, Operation Manual

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Host Link FINS Command Master Appendix D
MEMORY AREA READ
(Sequence No. 751 (Hex 02EF)
This sequence sends command code 0101 hex to the specified Host Link Unit, reads the contents of consecu-
tive I/O memory 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 0006 hex (6 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
Memory area
code
(2 digits hex) Specify the memory area (2 digits hex)
and the first read address (2 digits hex)
+4 First read address (6 digits hex)
+5 Number of read elements
(4 digits hex) Specify the number of read elements
(4 digits hex)
Number of read elements
Number of send data words
+0
+1
+2
+5
+3 Memory area code
+4 First read address
Host Link unit number
Remote destination node
address
First word of
send data
Remote destination
network address
Remote destination
unit address
Offset Contents (data format) Data
+0 Number of receive data words
(4 digits hex) 0003 to 00FA 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.
Read data
Receive data
storage words
Number of receive data words
+0
+2
+1 End code