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6.2 KT4 Command Table
If
[Modbus ASCII (KT4 command allocation)] or
is selected in [Communication protocol], the following KT4 command can be used.
6.2.1 A Single Piece of Data Read/Write Command
Modbus
Function
Code
03/06H
0001H
03/06H
0002H
03/06H
0003H
03/06H
0004H
03/06H
0005H
03/06H
0006H
03/06H
0007H
03/06H
0008H
03/06H
0009H
03/06H
000AH
03/06H
000BH
03/06H
000CH
03/06H
000DH
03/06H
000EH
03/06H
000FH
03/06H
0010H
03/06H
0011H
03/06H
0012H
03/06H
0013H
03/06H
0014H
03/06H
0015H
03/06H
0016H
03/06H
0017H
03/06H
0018H
03/06H
0019H
03/06H
001AH
03/06H
001BH
03/06H
001CH
03/06H
001DH
03/06H
001EH
03/06H
001FH
03/06H
0020H
03/06H
0021H
03/06H
0022H
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Data Item
SV1
Not used
(*1)
AT/Auto-reset Perform/Cancel
OUT1 proportional band
OUT2 proportional band
Integral time
Derivative time
OUT1 proportional cycle
OUT2 proportional cycle
Not used
(*1)
EV1 alarm value
(*4)
EV2 alarm value
(*4)
Not used
(*1)
Not used
(*1)
Not used
(*1)
Loop break alarm time
Loop break alarm span
Set value lock
SV high limit
SV low limit
Sensor correction
Overlap band/Dead band
Not used
(*1)
Scaling high limit
Scaling low limit
Decimal point place
PV filter time constant
OUT1 high limit
OUT1 low limit
OUT1 ON/OFF hysteresis
OUT2 cooling method
OUT2 high limit
OUT2 low limit
OUT2 ON/OFF hysteresis
[Modbus RTU (KT4 command allocation)]
Set value, Decimal point ignored
0000H : AT/ Auto-reset Cancel
0001H : AT/ Auto-reset Perform
Set value, Decimal point ignored
Set value, Decimal point ignored
(*2)(*3)
Set value
Set value
Set value
Set value
Set value
Set value, Decimal point ignored
0000H : Unlock
0001H : Lock 1
0002H : Lock 2
0003H : Lock 3
0004H : Lock 4
0005H : Lock 5
Set value, Decimal point ignored
Set value, Decimal point ignored
Set value, Decimal point ignored
Set value, Decimal point ignored
Set value, Decimal point ignored
Set value, Decimal point ignored
0000H : No decimal point
0001H : 1 digit after decimal point
0002H : 2 digits after decimal point
0003H : 3 digits after decimal point
Set value, Decimal point ignored
Set value
Set value
Set value, Decimal point ignored
0000H : Air cooling
0001H : Oil cooling
0002H : Water cooling
Set value
Set value
Set value, Decimal point ignored
Data
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