RKC INSTRUMENT Z-TIO-G, Инструкция по эксплуатации

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9. COMMUNICATION DATA DESCRIPTION
IMS01T28-E4
9-26
Setting change rate limiter (up)
RKC communication
identifier HH
Modbus
register address ch1: 00B6H (182)
ch2: 00B7H (183)
Setting change rate limiter (down)
RKC communication
identifier HL
Modbus
register address ch1: 00BAH (186)
ch2: 00BBH (187)
This function is to allow the Set value (SV) to be automatically changed at specific rates when a new Set
value (SV).
Attribute:
R/W
Digits:
7 digits
Number of data:
2 (Data of each channel)
Data range:
0 (0.0, 0.00) to Input span/unit time *
0 (0.0, 0.00): Unused
(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.)
* Unit time: 60 seconds (Factory set value)
Factory set value:
Setting change rate limiter (up): 0.00
Setting change rate limiter (down): 0.00
Related parameters:
Setting change rate limiter unit time (P. 9-80)
:
 Setting change rate limiter
This function is to allow the Set value (SV) to be automatically changed at specific rates when a new Set
value (SV). Setting change rate limiter (up) is used when the SV is changed to a higher SV. Setting change
rate limiter (down) is used when the SV is changed to a lower SV.
[Application examples of setting change rate limiter]
SV
Decrease gradually
at specific rate
SV
[After changing]
SV
[Before changing]
Changing the set value
Time

Decreasing the SV to a lower value
Increase gradually
at specific rate
Changing the set value
SV
[After changing]
SV
[Before changing]
Time

Increasing the SV to a higher value
SV
When the setting change rate limiter is used, the SV will also ramp up or ramp down by the
function at power-on and operation mode change from STOP to RUN.
If the Autotuning (AT) function is activated while the SV is ramping up or ramping down by the
setting change rate limiter, AT will starts after the SV finishes ramp-up or ramp-down by the
limiter, and the controller is in PID control mode until AT starts.
When the value of setting change rate limiter is changed during normal operation, the ramp-up or
ramp-down rate will be changed unless the SV already has finished ramp-up or ramp-down by
the function.
If the rate of setting change limiter is set to any value other than “0 (0.0, 0.00): Unused,” the
event re-hold action to be taken by a Set value (SV) change becomes invalid.