Tool I/O

External devices can be connected to the robot system through the M12 connectors. There are two secure and two non-secure output connectors in each case.

Safety devices must be connected to the safety connectors.

Illustration 33: M12 control unit

1. M12.IO1 port (non-safe)
2. M12.IO2 port (non-safe)
3. M12.S1 port (safe)
4. M12.S2 port (safe)

The pin assignments for the M12 connectors are shown in the following figure:

Illustration 34: Pin assignment for the plug and socket of the M12 connector

• A — Socket
• B — Plug
• 1-5 — Pins

Pin number	M12.S1 (plug)	M12.S2 (plug)	M12.IO1 (socket)	M12.IO2 (socket)
1	24 V	24 V	24 V	24 V
2	Safe output 1.1	Safe output 2.1	Input M12.1	Input M12.2
3	Ground	Ground	Ground	Ground
4	Monitoring of safe output 1	Monitoring of safe output 2	Output M12.1	Output M12.2
5	Safe output 1.2	Safe output 2.2	n/a	n/a