Moeller PS 416-BGT-4 Series, Hardware And Engineering, Page: 77 / 150

74
02/98 AWB 27-1208-GB
Figure 26: Wiring of the central unit and programming
device via PRG/RS 232
PRG interface/RS 485:
If the PRG interface on the central unit is used as a
RS 485 interface, the UM 1.5 interface converter
must be used in the connection between the RS 485
interface and the RS 232 interface of the
programming device.
Figure 27: Wiring of the central unit and the programming
device via PRG/RS 485
햲
Required for lengthening the RS 485 interface
–
5
PRG/RS232
SGND
RxD
TxD 3
2
TxD
RxD
SGND
Programming device
Screen
I/O Pin Signal Signal
O
I
(sender)
(receiver)
–
UM 1.5
TB/RB
TA/RA
PGND
3
4
7
PRG/RS 485
PGND
TxD
RxD
SGND
RxD
TxD
SGND
NG 31
+5 V DC 220 V AC
+5 V ext.
햲
I/O
Screen
Receiver/
sender
I/O Pin Signal
(if required)
I/O
Programming device
(sender)
(receiver)
Signal Signal
Receiver/
sender
Signal
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