RKC INSTRUMENT Z-TIO-G, Instruction Manual

Page: 188 / 246

9. COMMUNICATION DATA DESCRIPTION
IMS01T28-E4
9-80
Derivative time limiter (high)
RKC communication
identifier
D6
Modbus
register address
ch1: 02BEH (702)
ch2: 02BFH (703)
Derivative time limiter (low) RKC communication
identifier
D7
Modbus
register address
ch1: 02C2H (706)
ch2: 02C3H (707)
Derivative time limiter (high): Use to set the high limit value of Derivative time.
Derivative time limiter (low): Use to set the low limit value of Derivative time.
(However, Derivative time limiter (high)

Derivative time limiter (low))
Attribute:
R/W
Digits:
7 digits
Number of data:
2 (Data of each channel)
Data range:
0.00 to 3000.0 seconds (0.0: PI action)
Factory set value:
Derivative time limiter (high): 3000.0
Derivative time limiter (low): 0.0
Related parameters:
PID/AT transfer (P. 9-13), Derivative time (P. 9-23),
Integral/Derivative time decimal point position (P. 9-68)
Function:
The Derivative time range is restricted while the Autotuning (AT) function is being
executed.
If the Autotuning (AT) function is executed when the Derivative time limiter (high) is set at “0.0,”
P and I values suitable to PI control are computed.
Setting change rate limiter unit time
RKC communication
identifier HU
Modbus
register address ch1: 031EH (798)
ch2: 031FH (799)
Set the time unit for Setting change rate limiter (UP/DOWN).
Attribute:
R/W
Digits:
7 digits
Number of data:
2 (Data of each channel)
Data range:
1 to 3600 seconds
Factory set value:
60
Related parameters:
Setting change rate limiter (up) (P. 9-26), Setting change rate limiter (down) (P. 9-26)
Soak time unit
RKC communication
identifier RU
Modbus
register address ch1: 0322H (802)
ch2: 0323H (803)
Use to select the time unit for Area soak time.
Attribute:
R/W
Digits:
1 digit
Number of data:
2 (Data of each channel)
Data range:
0: 0 hours 00 minutes to 99 hours 59 minutes
RKC communication: 0 hours 00 minutes to 99 hours 59 minutes
Modbus: 0 to 5999 minutes
1: 0 minutes 00 seconds to 199 minutes 59 seconds
RKC communication: 0 minutes 00 seconds to 199 minutes 59 seconds
Modbus: 0 to 11999 seconds
Factory set value:
RKC communication: 1
Modbus: 1
Related parameters:
Memory area soak time monitor (P. 9-10), Area soak time (P. 9-27)