RKC INSTRUMENT Z-TIO-G, Instruction Manual, Page: 178 / 246

9. COMMUNICATION DATA DESCRIPTION
IMS01T28-E4
9-70
Action (high) at input error
RKC communication
identifier WH
Modbus
register address ch1: 024EH (590)
ch2: 024FH (591)
Action (low) at input error
RKC communication
identifier WL
Modbus
register address ch1: 0252H (594)
ch2: 0253H (595)
Action (high) at input error:
Use to select the action when the Measured value (PV) reaches the Input error determination point (high).
Action (low) at input error:
Use to select the action when the Measured value (PV) reaches the Input error determination point (low).
Attribute:
R/W
Digits:
1 digit
Number of data:
2 (Data of each channel)
Data range:
0: Normal control (PID control output)
1: Manipulated output value at input error
Factory set value:
Input error determination point (high): 0
Input error determination point (low): 0
Related parameters:
Input error determination point (high/low) (P. 9-48),
Manipulated output value at input error (P. 9-71)
Function:
Input Error Determination
Example: Input
range:

50.000 to +150.000

C
Input error determination point (high): 100.000

C
Input error determination point (low): 0.000

C
Action area at input error
Differential gap
(0.1 % of input span)
Input error determination point
(low)
Input error determination point
(high)

50.000

C 0.000

C 100.000

C
Manipulated output value
at input error
150.000

C
Select one of these
PID control output
Input range
(Within input scale range)
Action area at input error
Manipulated output value
at input error
Select one of these
PID control output

Auto mode
Manipulated output value (MV)
obtained by PID control

Manual mode
Manipulated output value (MV)
at manual setting
[Manipulated output action at input error]

Auto mode
Selected to the Manual mode just when determined to be at input error to output the Manipulated output value set by the
“Manipulated output value at input error.”

Manual mode
Not selected to the “Manipulated output value at input error” even if determined to be at input error.