insys icom MRX Installation And User Manual page 45

MRX
O
O
O
GND
IN2
O
O
O
GND
IN1
Figure 24: MRcard SI – connections at the connector
7.5.2.1 Digital inputs
Both inputs are high-active and based on the electrical requirements of the PLC stand-
ard DIN EN 61131-2 for digital inputs type 1. The figure below shows an exemplary
connection.
Figure 25: MRcard SI – Digital inputs – connection example
Digital output 2
2,2
Digital output 2
2,1
Digital output 2
2,4
Ground
Digital input 2
Digital output 1
1,2
Digital output 1
1,1
Digital output 1
1,4
Ground
Digital input 1
normally closed (opening contact, NC)
–
common contact (COM)
–
normally open (closing contact, NO)
–
normally closed (opening contact, NC)
–
common contact (COM)
–
normally open (closing contact, NO)
–
Technical Information
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