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R-107
A Standard System Protocol
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
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Protocol
Configur
ation
Receive Data Word Allocation (4th Operand of PMCR(260))
None.
Offset Contents (data format) Data
+0 Number of send data words
(4 digits Hex) 0019 (0025 decimal) (fixed)
+1 Segment number (1 digit BCD) 1 to 5
+2 Measurement interval number
(1 digit BCD) 1 to 7
+3 Lower limit value (Decimal por-
tion) (4 digits BCD) 0000 to 9999
+4 Lower limit value (integer por-
tion) (3 digits BCD) 000 to 999
+5 Lower limit value (Sign)
(ASCII 1 character) If +: 20 (' ')
If –: 2D ('–')
+6 to +8 Upper limit value Same as lower limit value
+9 to +11 Reference value Same as lower limit value
+12 Analog output scale number
(1 digit BCD) 0 to 3
+13 to
+15 Unused
+16 Data output conditions
(1 digit BCD) 0 to 6
+17 Data output timer value
(3 digits BCD) 000 to 999
+18 Number of seconds for latch
timer (2 digits BCD) 00 to 99
+19 Yes/No for segment setting
(1 digit BCD)
Set: 1(SG)
Don't set: 0
+20 Yes/No for measurement inter-
val number setting (1 digit BCD)
Set: 1(M)
Don't set: 0
+21 Yes/No for upper/lower limit
value setting (1 digit BCD)
Set: 1(LL, LH)
Don't set: 0
+22 Yes/No for reference setting
(1 digit BCD)
Set: 1(REF, SCL)
Don't set: 0
+23 Yes/No for data output condition
setting (1 digit BCD)
Set: 1(PR, PRT)
Don't set: 0
+24 Yes/No for latch timer setting
(1 digit BCD)
Set: 1(RLT)
Don't set: 0
Example –123.4567
4 5 6 7
0 1 2 3
2 D 0 0
+3
+4
+5