Configuration of I/O Data Objects

Data objects added to CM588-CN CANOPEN Slave configures I/O data. Inserting variable names at the data objects maps the variables to dedicated I/O channels.

Several types of data object groups I/O variables by size and direction. The I/O driver of the PLC firmware copies the amount of data bytes configured by these data objects cyclically. The copy cycle time is defined by the parameter Min. update time.

Note

Keep basic load of PLC low by configuring only as much data objects as really needed. If further I/O variables need to be added later additional data objects can be inserted.

The maximum amount of bytes used for I/O data is limited to 512 bytes for input data and 512 bytes for output data.

Inserting new data objects checks these limits and generates an error message if the new object does not fit. Pasting a single or a number of copied data objects checks these limits also. In case of a limit violation the paste operation is canceled completely and no data object is inserted.