Operating Manual: PMImicro diag
4-2
Unit Description
Side view, including interfaces
Fig. 4-2: Side view, including interfaces
1:
Supply voltage with polarity protection
2:
Threaded insert (M4) for the functional earth connection
3:
RS 232 interface
4:
RS 485 interface
5:
RS 485 interface termination
Notice
Please note the following during diagnostics on the PNOZmulti.
The RS 232 interfaces on the PNOZmulti and PMImicro diag do not have
galvanic isolation. If the units are connected to different voltage sources,
any potential difference between the power supplies could destroy the RS
232 interface.
Connect the PNOZmulti and PMImicro diag to the same voltage source!
INPUT 24V/DC
RS232
LAN
RS485
OFF
ON
1
3
0V
+2
4V
2
4
3
4
2
1
5