Omron SYSMAC CJ1W-SCU21-V1, Operation Manual

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Digital Controller Protocol Appendix K
Read SP Data (Sequence No. 255 (Hex 00FF))
Reads the SP data for the variable type “analog data” in the variable area.
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) Number of units + 2
+1 Number of units (4 digits Hex) 0001 to 0020 (1 to 32 decimal)
+2 1st unit
Unit No. (2 digits BCD)
00 to 31
+3 2nd unit
Unit No. (2 digits BCD) 00 to 31
•
•
•
+33
(max.) 32nd unit
Unit No. (2 digits BCD) 00 to 31
Offset Contents (data format) Data
+0 Number of receive data words
(4 digits Hex) Number of units
×
2 + 1
+1 1st unit
SP data (rightmost 4 digits)
(4 digits BCD) 00000000 to 09999000
F indicates a negative number.
+2 1st unit
SP data (leftmost 4 digits)
(4 digits BCD)
+3 2nd unit
SP data (rightmost 4 digits)
(4 digits BCD) 00000000 to 09999000
F indicates a negative number.
+4 2nd unit
SP data (leftmost 4 digits)
(4 digits BCD)
•
•
•
+63 32nd unit
SP data (rightmost 4 digits)
(4 digits BCD) 00000000 to 09999000
F indicates a negative number.
+64 32nd unit
SP data (leftmost 4 digits)
(4 digits BCD)
(Undefined) Unit No.
First word of
send data Number of send data words +0
+1
+2
+3
+33
(Undefined) Unit No.
Number of units
(Undefined)
Unit No.
~ ~
32nd unit (max.)
2nd unit
1st unit
Receive data
storage words Number of receive data words
+0
+1
+2
+3
+4
+63
+64
SP data (rightmost 4 digits)
~ ~
SP data (leftmost 4 digits)
SP data (rightmost 4 digits)
SP data (leftmost 4 digits)
1st unit
32nd unit
SP data (rightmost 4 digits)
SP data (leftmost 4 digits)
2nd unit