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Temperature Input Units Section 6-4
■ Example of Bottom Hold
Note A delay in network transmission time will occur from the time the Hold Flag
turns ON (or OFF) in the Master’s ladder program until notification of the flag’s
status is actually sent to the Slave. Therefore, even when the Hold Flag is
ON, the first temperature data transmitted to the Master when the CPU Unit
power is turned ON may be the data from when the Hold Flag was OFF. To
collect peak/bottom hold data using the Hold Flag at the Master, configure a
ladder program that considers the transmission delay when the Hold Flag is
turned ON, then enables the peak/bottom hold values after a fixed time inter-
val.
Setting Procedure (Example: DeviceNet Configurator)
1,2,3... 1. In the Network Configuration Window, double-click the icon of the Slice I/O
Terminal that is to be set. Alternatively, right-click the icon and select Pa-
rameters - Edit. The Edit Unit Parameters Window will be displayed.
2. Select the Temperature Input Unit to be edited from the I/O Module Tab
Page.
3. Click the Edit Button on the I/O Module Tab Page. The Edit Unit Parame-
ters Window will be displayed.
4. Select the tab page for the input where peak/bottom hold is to be set, and
select the Peak/Bottom Hold Check Box in the Function Choice Area.
ON
OFF
Temperature input value
The bottom value
will be updated.
Hold value
Previous value
Hold Flag
Bottom hold value
Hold function starts Hold function stops
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