35
Detailed Description of User Settings Area Data
Section 4-2
If the value is abnormal, change the zero adjustment value in the DM Area,
and adjust the offset (parallel movement) value.
5.
Input a signal equivalent to 100% from the calibration device, and check
the process value in the CPU Unit’s CIO Area using the Programming De-
vice. If the value is abnormal, change the span adjustment gain value in
the DM Area.
4-2-4
Scaling Function Settings
This function applies only to the voltage or current setting.
The input signal is scaled according to the input signal’s lower limit and upper
limit, and transferred to the CPU Unit as the process value. The lower limits
and upper limits used to scale each input are set in DM Area words m+22 to
m+38, as shown in the following table.
In the following example, an input 1 current input signal of 4 to 20 mA is
scaled to industrial units of 0 to 800 Pa. The input 1 scaling upper limit in
D20022 is set to 0320 hex (800 BCD) and the input 1 scaling lower limit in
D20023 is set to 0000 hex (0 BCD).
Note
This function is not applicable to temperatures.
DM word
Function
Set value
m + 5
Input 1 zero adjustment value
−
9,999 to
−
1 (D8F1 to FFFF hex)
0 to 9,999 (0000 to 270F hex)
(set value
×
LSB)
m + 9
Input 2 zero adjustment value
m + 13
Input 3 zero adjustment value
m + 17
Input 4 zero adjustment value
DM word
Function
Set value
m + 4
Input 1span adjustment value
0 to 32,000 (0000 to 7D00 hex)
(set value
×
0.0001)
m + 8
Input 2 span adjustment value
m + 12
Input 3 span adjustment value
m + 16
Input 4 span adjustment value
DM word
Function
Set value
m + 22
Input 1 scaling (upper limit)
−
32,768 (8000 hex) to 32,767 (7FFF hex)
m + 23
Input 1 scaling (lower limit)
m + 27
Input 2 scaling (upper limit)
m + 28
Input 2 scaling (lower limit)
m + 32
Input 3 scaling (upper limit)
m + 33
Input 3 scaling (lower limit)
m + 37
Input 4 scaling (upper limit)
m + 38
Input 4 scaling (lower limit)
Input signal
Industrial unit
4
20 mA
0
Lower limit
Set to 0 (0000 hex).
800 Pa
Upper limit
Set to 800 (0320 hex).
Summary of Contents for SYSMAC CJ1W-AD04U
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Page 61: ...42 Expansion Setting Area Section 4 3...
Page 69: ...50 Dimensions Appendix A...
