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Appendix H
ES100j Digital Controller Protocol
251
Read PV Data (Sequence No. 254)
Reads the PV data for the variable type “analog data” in the variable area.
Send Data Word Allocation (2nd Operand of PMCR)
(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
Offset Contents (data format) Data
+0 Number of send data words
(4 digits BCD)
Number of units + 2
+1 Number of units (4 digits BCD) 0001 to 0032
+2 1st unit
Unit No. (2 digits BCD)
00 to 31
+3 2nd unit
Unit No. (2 digits BCD)
00 to 31
D
D
D
+33
(max.)
32nd unit
Unit No. (2 digits BCD)
00 to 31
Receive Data Word Allocation (3rd Operand of PMCR)
Receive data
storage words
Number of receive data words+0
+1
+2
+3
+4
+63
+64
PV data (rightmost 4 digits)
~ ~
PV data (leftmost 4 digits)
PV data (rightmost 4 digits)
PV data (leftmost 4 digits)
1st unit
32nd unit
PV data (rightmost 4 digits)
PV data (leftmost 4 digits)
2nd unit