RKC INSTRUMENT Z-TIO-G, Инструкция по эксплуатации

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9. COMMUNICATION DATA DESCRIPTION
IMS01T28-E4
9-68
Integral/Derivative time decimal point
position
RKC communication
identifier PK
Modbus
register address ch1: 0236H (566)
ch2: 0237H (567)
Use to select a decimal point position of integral time and derivative time.
Attribute:
R/W
Digits:
1 digit
Number of data:
2 (Data of each channel)
Data range:
1: 0.1 seconds setting (One decimal place)
Factory set value:
1
Related parameters:
Integral time (P. 9-23), Derivative time (P. 9-23),
Integral time limiter (high/low) (P. 9-79),
Derivative time limiter (high/low) (P. 9-80)
Derivative action
RKC communication
identifier KA
Modbus
register address ch1: 023AH (570)
ch2: 023BH (571)
Use to select the derivative action.
Attribute:
R/W
Digits:
1 digit
Number of data:
2 (Data of each channel)
Data range:
0: Measured value derivative
1: Deviation derivative
Factory set value:
0
Related parameters:
PID/AT transfer (P. 9-13)
Function:
Measured value derivative:
PID control putting much emphasis on response most adaptive to fixed
set point control (mode).
Deviation derivative:
PID control putting much emphasis on follow-up most adaptive to ramp control
or cascade control using a ratio of setting change limiter, etc. It is used to initiate
follow-up upon start-up of load and to suppress overshooting when switching
from ramp to soak.
Overshoot
Disturbance
Measured value derivative (PID control)
Set value (SV)
Disturbance
Measured value (PV)
Follow-up
Deviation derivative (PID control)
Follow-up
Set value (SV)
Measured value (PV)