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R-95
A Standard System Protocol
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
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Protocol
Configur
ation
When the sample measurement condition is from 1 to 999, this sequence performs a single run mea-
surement and requests the measurement results.
Send Data Word Allocation (3rd Operand of PMCR(260))
None.
Receive Data Word Allocation (4th Operand of PMCR(260))
If the sample measurement condition is zero, a zero run measurement is started.
Send Data Word Allocation (3rd Operand of PMCR(260))
None.
Receive Data Word Allocation (4th Operand of PMCR(260))
None.
Single Run Measurement Start (3000-series) (Sequence No. 410
(Hex 019A))
Offset Contents (data format) Data
+0 Number of receive data words
(4 digit Hex) With no reference setting: 0006
With reference setting: 0009
+1 Program number
(1 digit BCD) 0 to 9
+2 Decision result
(ASCII 2 characters) With no limit setting: 0000
With limit setting: 2B4E ("+N"), 4F4B ("OK"),
2D4E ("–N")
+3 Measurement value (decimal
portion) (4 digits BCD) 0000 to 9999
+4 Measurement value (integer por-
tion) (3 digits BCD) 000 to 999
+5 Measurement value (Sign) (BIN) If +: 0
If –: F
+6 to +8 Deviation value Same as measurement value
*The deviation will be stored in this area only when reference
setting is made.
Zero Run Measurement Start (3000-series) (Sequence No. 411 (Hex
019B))
Receive data stor
age words
Number of receive data words
+0
+1
+2
+3
+4
+5
+6
+7
+8
Decimal portion
(Undefined) Integer portion
Sign
Decimal portion
(Undefined)
(Undefined) Integer portion
Sign (Undefined)
(Undefined)
Decision result
Program number
Measurement value
Deviation value
4 5 6 7
0 1 2 3
F 0 0 0
+3
+4
+5
Example –123.4567