For groups in the I/O image of the Safety Logic Controller (SLC) the following is defined: Only the first n channels are used (n is the set value of the corresponding parameter NumberOf..).
The following table shows the connection between values of the I/O configuration and the I/O images:
|
I/O configuration |
Corresponding I/O image |
|---|---|
When configuring the data exchange, the amount of data is limited. Any error detected is reported when compiling if these limits are exceeded in your configuration.
The total amount of exchange data (in both directions) is limited to 75 points, where
8 Bool = 1 point
1 INT = 1 point
1 UINT = 1 point
1 UDINT = 1 point
The maximum number of bytes in the direction of the Safety Logic Controller to a Logic Motion Controller (LMC) or the Logic Motion Controller (LMC) to the Safety Logic Controller is limited to 128 bytes, where
8 Bool = 1 byte
1 INT = 2 bytes
1 UINT = 2 bytes
1 UDINT = 4 bytes
In addition, the amount of each data type is limited (according to the definition in the column of the editor). The limits are verified by Logic Builder during the configuration process.