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DC
DC
POWOK
D+,D-
POS(9:0)
MB+24V
L-
0V
MB+5V
SB
SA
L-
L+
P(owok)
R(un)
F(ault)
ORx2
ORx1
X3
X1A
1
2
1
3
3
2
TB820-1
TB820-2
Electrical Modulebus
Connector
E
O
DIN-rail
X1B
CLK+,CLK-
POS(9:7)
E
O
E
O
E
O
X2
ERx
X4 X5
MBI-4
Reset logic,
+5V Supervision
+5V
MB +5V MB +5V
+5V
0V
0V
Current
Limit
MB +5V
0V
0V
+5V
RS-485
RS-485