CK_COV: Check change of value for 2 MS & 2 Real
Block CK_COV (FB885) checks 2 multistate values and 2 real values for a change of value. The results are pending on the output.
Application: Displays in chart {CenGlrThPrt01} for a change to blinds positioning value.
Functioning
The block compares all input values with their value for the last cycle. For change a value, [PlsCovInd] is set to = 1 (one cycle in length).
The input values are switched directly to the outputs.
Input values
Pin | Description | Data type | Standard value | Engineering unit or text group | Min. | Max. |
InMs1 | Multistate input 1 | INT | 1 |
| 0 | 32767 |
InMs2 | Multistate input 2 | INT | 1 |
| 0 | 32767 |
InR1 | Real input 1 | REAL | 0.0 | % | 0.0 | 100.0 |
InR2 | Real input 2 | REAL | 0.0 | % | 0.0 | 100.0 |
Output values
Pin | Description | Data type | Standard value | Engineering unit or text group | Min. | Max. |
OutMs1 | Multistate output 1 | INT | 1 | Off...Stage15, Max | 1 | 32767 |
OutMs2 | Multistate output 2 | INT | 1 | Off...Stage15, Max | 1 | 32767 |
OutR1 | Real output 1 | REAL | 0.0 | % | 0.0 | 100.0 |
OutR2 | Real output 2 | REAL | 0.0 | % | 0.0 | 100.0 |
PlsCovInd | Pulse for change of value indication | BOOL | 0 | False, True |
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Process response
Standard (see General rules and information).
Troubleshooting
Standard (see General rules and information).