7-26
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
1
2
S+ S–
3579
46 8
10
S+ S–
QV M
ANA
QV M
ANA
L+ M
DC 24 V
QV
(4/8)
S+
(3/7)
M
ANA
(6/10)
S–
(5/9)
R
L
Key:
QV: Analog Output “Voltage”
S”: Sensor Line
M
ANA
: Chassis Ground Terminal of the Analog Unit
R
L
: Load Resistor
Figure 7-9 Load Connection via a Four–Wire Circuit (6ES5 470–8MA11,
6ES5 470–8MD11)
Figure 7-10 shows how to connect loads to the current outputs of the follow-
ing modules:
470–8MB11 (2 20 mA)
and
470–8MC11 (2 +4 to 20 mA)
Analog Value Processing
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