4-10
Chapter 4. Functions
Configuration is possible for any range type of thermocouple, resistance
temperature detector, DC voltage, or DC current.
Even if the number of decimal places for PV is changed, the decimal point position
for the linear scaling and LSP in the AI bank does not change.
The decimal point position is set so that the entire value does not exceed 5 digits.
Ex.: If there are 2 digits after the decimal point, 999.99 is displayed as "999.99"
Ex.: If there are 2 digits after the decimal point, 1000.00 is displayed as "1000.0"
z
Sampling cycle
This setting is common to all AI blocks. The sampling cycle can be changed as
necessary.
The update cycle of analog input and the execution cycle of control operation are
called the sampling cycle.
Item (bank)
Display
Description
Initial value
Sampling cycle
(Basic action bank)
MENU > BasicAction
Sampling cycle
0: 10 ms
1: 50 ms
2: 100 ms
1
z
PV Hold
Updating of the PV value can be stopped by using PV Hold for the digital input
(DI).
When a hold is applied, a blinking "PV" is displayed on the monitor screen.
When a hold is applied, the PV does not change if the analog input (AI) setting or
input status changes.
Even if a hold is applied, the alarm function is still activated by a change in the
analog input (AI) status.
PV Hold is disabled for RSPs.
z
Power supply frequency
Regardless of whether this product is an AC or a DC power model, be sure to set to
the power supply frequency for the region where the product will be used.
This is effective for stabilizing the value of the analog input (PV, RSP, CT input, and
VT input).
Item (bank)
Display
Description
Initial value
Power supply frequency
(Basic action bank)
MENU > BasicAction
Power supply frequency
0: 50 Hz
1: 60 Hz
0
