YOKOGAWA STARDOM FCN-500, Engineering Manual

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<5. Function Test>
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TI 34P02K35-02E Jun. 6, 2018-00
2. Gain and Bias
Specify the gain and bias as values to be added to analog output values to give
analog input values. Specify gain and bias values as required.
This setting is enabled only for closed loop wiring.
3. First Order Lag Time Constant
Specify the first order lag time for varying input valuse with values of the output.
If this value is large, the response of input values to variance in output values is
delayed.
Investigate the response time in the actual plant environment and specify a first-
order lag time constant value accordingly.
This setting is enabled only for closed loop wiring.
4. Sampling Cycle and Number of Sample Points
Specify the sampling interval and the number of output values to be sampled.
This setting is enabled only for closed loop wiring.
5. UP time and DOWN time
If time-series wiring input is selected, specify the time interval for increasing the
analog input value from 0 to 100% or the time interval for decreasing the analog
input value from 100% to 0%.
● Instantiating Software Wiring and Starting its Execution
Defining a software wiring creates a logical POU for the software wiring but does not
start its execution. Like other logical POUs, the created logical POU must be
instantiated in a control task for its execution.
● Starting Execution of Software Wiring
Software wiring, even after instantiation, does not start execution if I/O is in
connected state.
To start the execution of software wiring, set global variable "GS_NFIO_DISCONNF”
to TRUE to put I/O in disconnected state as described in Section 5.6.3,
“Disconnecting I/O.”
● Disabling Software Wiring
Canceling I/O disconnection disables Software wiring.
When I/O disconnection is cancelled, however, entering of device label variable
values in Logic Designer’s Debug mode will be disallowed.
For this reason, do not disable software wiring by canceling I/O disconnection.
Instead, delete the logical POU of the instantiated software wiring from the task, and
then perform an online download.