Drawing Environment > Detailed command descriptions > Symbol Insert Tool > Buttons, controls and views > Resource category view > 8: PLC

I/O symbols are supplied in both vertical and horizontal versions.

Figure 1038: Vertical and Horizontal I/O symbols

The vertical symbols are supplied in versions with the connections on the upper side as well as with the connections on the lower side.

Figure 1039: Vertical I/O symbols with the connection on the upper and the lower side

In the same way the horizontal symbols are supplied in versions with the connections on the left side as well as with the connections on the right side.

Figure 1040: Horizontal I/O symbols with the connection on the right and the left side

For digital I/O’s all combinations with 1, 2, 3 and 4 connections per I/O are included.

Figure 1041: Digital output symbols with 2 and 4 connections per I/O

For analogue I/O’s all combinations with any number of connections from 1 to 12 per I/O are included.

Figure 1042: Analogue input symbols with 4, 7 and 11 connections per I/O.

The table below shows the exact content of the PLC I/O symbol library.

Figure 1043: Standard PLC I/O symbols in cadett ELSA