Interface specifications
The GPIO supports low current/power devices like relays, contactors, lamps and/or separate PLC units.
The GPIO has the following features:
• Four inputs, for use with 24V, but robust against 48V.
• Four outputs, for use with 24V.
The following table contains the description of the pins of the GPIO interface.
Pin number
Signal name
Max. current
Description
1
O1
1A @ 24V
Output 1.
2
RTN
Protected return.
3
O2
1A @ 24V
Output 2.
4
RTN
Protected return.
5
O3
1A @ 24V
Output 3.
6
RTN
Protected return.
7
O4
1A @ 24V
Output 4.
8
RTN
Protected return.
9
I1
PNP Input 1.
10
24V
1A @ 24V
Protected output.
11
I2
PNP Input 2.
12
24V
1A @ 24V
Protected output.
MiR500 user guide, 2019/03, rev.1.1
67