C-863.12 Mercury Controller MS249E Version: 1.2.1 49
5.8 Connecting Digital Inputs and Outputs
The digital inputs and outputs on the I/O socket of the C-863.12 can be used as follows:
▪ Outputs: Triggering of external devices; see "Digital Output Signals" (p. 76).
▪ Inputs: Use in macros (p. 86) and/or as source for the reference and limit switch signals
of the axis (p. 86)
5.8.1 Connecting the Digital Outputs
Digital output signals are available on pins 5, 6, 7 and 8 of the I/O socket.
If the C-170.PB pushbutton box from PI is connected to the I/O socket, it displays via LEDs the
state of the digital output lines.
Tools and accessories
▪ Suitable cable, e. g. C-170.IO IO cable with open end, available as an optional accessory
(p. 10)
▪ Device to be triggered having digital input for TTL signals
Connecting a device to be triggered
➢ Connect an appropriate device to one of pins 5, 6, 7, and 8 of the I/O socket of the C-
863.12.
5.8.2 Connecting the Digital Inputs
Digital input signals can be fed via pins 1, 2, 3, and 4 of the I/O socket into the C-863.12.
The digital inputs (pins 1 to 4) on the I/O socket can also be used as analog inputs.
▪ Digital: TTL
▪ Analog: 0 to +5 V
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