Siemens Simatic CFU User Manual

Digital output
Table 7-5 Wiring variant "Digital output with 1-wire interface"
Wiring scheme Terminals Connection
Q!
Q!
0
● <n>+, <n+1>+,....
Multiple output signals DQ<n>+, DQ<n+1>
+, ...
● M or <n>-: Ground
One common ground connection
for multiple channels:
● M terminal block -
or
● Channel ground <n>-
Table 7-6 Wiring variant "Digital output with 2-wire interface"
Wiring scheme Terminals Connection
Q!Q!
● <n>+: Output signal, channel DQ<n>+
● <n>-: Associated ground, channel DQ<n>-
One ground connection for one
channel
7.5 Connect cables for sensors, actuators and power supply to the
connector
7.5.1 Selecting connection system
Terminal types
The following terminal types are available for the CFU for connecting the cables to the sensors
and actuators, or to the power supply.
● Push-in terminals (included in scope of delivery of the CFU)
● Screw-type terminals (available as an accessory)
Additional information
● Section "Preparing cables (Page 63)"
● Section "Connecting the cable using push-in terminals (Page 63)"
● Section "Connecting cables using screw terminals (Page 64)"
● Section "Connecting the power supply to the CFU (Page 56)"
● Section "CFU PA: Connecting a PROFIBUS PA field device (Page 59)"
● Section "Connecting a sensor / actuator to the CFU (Page 60)"
● Section "Tools and tightening torques (Page 186)"
Connecting
7.5 Connect cables for sensors, actuators and power supply to the connector
SIMATIC CFU
62 Commissioning Manual, 08/2019, A5E39252870-AD

Siemens Simatic CFU Specifications

General

Brand	Siemens
Model	Simatic CFU
Category	I/O Systems
Language	English