As of product version 3: Wiring: 2-wire and 4-wire connection for voltage output
The following picture shows
ā The 2-wire connection without compensation of the line resistances and
ā The 4-wire connection with compensation of the line resistances.
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ā DAC
ā” Internal supply
ā¢ Equipotential bonding
ā£ Functional ground
ā¤ Backplane bus interface
ā„ Electrical isolation
Figure 10-14 Wiring and block diagram
ET 200PA SMART I/O modules
10.5 Analog output modules
ET 200PA SMART
Operating Instructions, 06/2019, A5E34192013-AB 203
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