insys icom MRX Installation And User Manual page 37

MRX Technical Information
7.3.2.2 Digital inputs
The card provides two different digital inputs. Input IN1 is low-active, i.e. active, if
connected to GND. Input IN2 is high-active and based on the electrical requirements
of the PLC standard DIN EN 61131-2 for digital inputs type 1. You'll find more infor-
mation under Technical Data in Table 1. The figure below shows an exemplary con-
nection of the different inputs.
Figure 19: MRcard PL – Digital inputs – connection examples
37