JUMO LOGOSCREEN 500 Operating Instructions Manual page 85

Resistance thermometer
in 4-wire circuit
Voltage input ≤ 210mV
Voltage input > 210mV
Current input
Supply
Supply voltage
Interfaces (extra code)
RS232C
9-pin SUB-D
RS485
9-pin SUB-D
Relay outputs (extra code)
Relay K1, K2, K3
(changeover)
Logic inputs (extra code)
Supply
24V 50mA
Logic inputs
voltage-operated
LOW = DC -3 to +5V
HIGH = DC 12 to 30V
9 Electrical connection
1 to 6
1 to 6
1 to 6
1 to 6
PE
N (L-)
L1 (L+)
20.
20.
30, 31, 32
33
6 +24V
5 GND
4 logic input 1
3 logic input 2
2 logic input 3
1 logic input 4
2 RxD receive data
3 TxD transmit data
5 GND ground
3 TxD+/RxD+
transmit/receive data +
5 GND ground
8 TxD-/RxD-
transmit/receive data -
Example:
Logic input 4, operated
from internal supply
voltage
83