RKC INSTRUMENT Z-TIO-G, Instruction Manual

Page: 138 / 246

9. COMMUNICATION DATA DESCRIPTION
IMS01T28-E4
9-30
PV low input cut-off
RKC communication
identifier DP
Modbus
register address ch1: 00DEH (222)
ch2: 00DFH (223)
PV low input cut-off is used with Square root extraction function. The measured value less than the PV low
input cut-off is ignored to prevent control disturbance caused by input variation at low measured value range.
Attribute:
R/W
When square root extraction is “0: Unused,” the PV low input cut-off will be RO.
Digits:
7 digits
Number of data:
2 (Data of each channel)
Data range:
0.00 to 25.00 % of input span
Factory set value:
0.00
Related parameters:
Square root extraction (P. 9-49)
Function:
When input signal square root extraction is used for in flow control, etc., the square
root extraction result varies widely at the low measured value range. The measured
value less than the PV low input cut-off is ignored to compute control output in order
to prevent control disturbance caused by input variation at low measured value range.
100 %
70.7 %
50 %
Output
Input
100 % 50 % 25 %
When set value of the PV low input cut-off is 15 %
0 %
When set value of the
PV low input cut-off is
0 %
RS bias
(Cascade bias)
RKC communication
identifier RB
Modbus
register address ch1: 00E2H (226)
ch2: 00E3H (227)
RS bias adds bias to the Remote setting (RS) input value.
Attribute:
R/W
Digits:
7 digits
Number of data:
2 (Data of each channel)
Data range:

Input span to +Input span
(Varies with the setting of the decimal point position. However, even if "3: Three
decimal places" is set, the maximum settable decimal places are 2.)
Factory set value:
0.00
Related parameters:
Remote/Local transfer (P. 9-16), SV select function (P. 9-83),
Remote SV function master channel module address (P. 9-87),
Remote SV function master channel selection (P. 9-88)
When the cascade control is selected, this is used as the cascade bias.