CTD
Counts downwards and signals reaching zero.
Input
Name | Type | Description |
|---|---|---|
CD | BOOL | Rising edge decrements counter value by 1. |
LD | BOOL | TRUE loads start value. |
PV | BOOL | Start value and counter limit |
Output
Name | Type | Description |
|---|---|---|
Q | BOOL | TRUE, if CV = 0 |
CV | INT | Current counter value |