Wcon Function Block - Honeywell UMC800 Reference Manual

2.78 WCON Function Block

Description
The WCON label stands for Write Constant. This block is part of the Auxiliary category. It looks like this
graphically on the Control Builder.
Function
Writes the numerical value of selected configuration parameter to a given control block. Select the index
number of the required parameter from the specific function block reference data and enter it in the
appropriate field in the "Write Constant Properties" dialog box.
•If EN is ON, change the selected parameter to the value of X.
ATTENTION
Invalid for block number whose type is other than PID, CARB, TPSC, ONOFF, SPP, SCB, SQR,MSP, HMON,
LMON, HLLM, VLIM, XFR, and LDLG.
Input
X = Value to be written (invalid for parameters of type other than BOOL or REAL)
EN = Enable command
Block Properties
Double click on the function block to access the
function block properties dialog box.
Block Order (Read Only)
You can change the assigned execution order
number by selecting "Execution Order" in the
"Configure" menu and arrange the order to suit
your control strategy.
Configuration Parameters
You must configure the WCON function Block
parameters to the desired value or selection that
matches your operating requirements.
Table 2-67 describes the parameters and the
value or selection.
3/99 Function Block Reference Guide
Function Blocks
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