
About the PS 4-271
Compact PLC
6
06/99 AWB 2700-1364 GB
Setup
Figure 1 provides an overview of the controls,
indicators and connecting terminals of the PLC.
Warning!
Always ground yourself before touching the PLC
to protect the components against electrostatic
discharge.
Key to figure 1:
120/240 V AC power supply
Digital inputs 120/240 V AC
Status LEDs for digital inputs 0.0 to 0.7
Plug-in screw terminal
Analog inputs AI
0
, AI
1
: 0 to 10 V/0(4) to 20 mA
Analog inputs AI
2
, AI
3
: Pt1000, Ni1000
Analog outputs AQ
0
, AQ
1
: 0 to 10 V
Analog outputs AQ
2
, AQ
3
: 0 to 20 mA
Status LEDs for digital inputs 1.0 to 1.3
Relay outputs (make contacts) 24 V DC or 250 V AC
Status LEDs for digital outputs C0 to C7
Suconet K interface
Setpoint potentiometers P1, P2
Switch S1 for bus terminating resistors
Programming device interface (PRG)
Memory module
Status LEDs for PLC
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