12
•
750-643 [MP-Bus Master Module]
Indicating
devices
WAGO-I/O-SYSTEM
750
I/O
Modules
2.1.1.3 Indicating devices
LED
Designation
State
Function
off
Enable Handheld not active
A
Enable
Handheld
active
green
Enable Handheld active
off
Transmission signal TxD not present
B TxD
green
Transmission signal TxD present
off
24 V MP-Bus supply not present
C
24 V
MP-Bus
supply
green
24 V MP-Bus supply present
off
Receive signal RxD not present
13
14
C
D
B
A
D
C
B
A
Fig. 2.1.1-2:
Indicating devices
g063802x
D RxD
green
Receive signal RxD present
2.1.1.4 Schematic circuit diagram
750-643
1
2
3
4
5
6
7
8
RxD
TxD
OUT
IN
RxD
TxD
Enable Handheld
MP-Bus
+24 V
0 V
Enable
Handheld
MP-Bus
+24 V
0 V
Enable
Handheld
Logic
Voltage
Supply
MP-Bus
MP-Bus
Voltage
Supply
Fig. 2.1.1-3: Schematic circuit diagram
g064301e
