Pepperl+Fuchs WHA-ADP2-F8B2 Z1 Series Manual page 23

WHA-ADP2-F8B2-*-**-Z1(-EX1)
Installation
Figure 3.11
1 PLC, Remote I/O, DC power supply without communication resistor
2 Field device (passive)
Control loop with communication resistor
In this configuration, the field device is powered externally by a PLC, Remote I/O or DC power
supply and outputs a 4 ... 20 mA signal. Alternatively it is used in HART multidrop mode. The
adapter provides the following functions:
HART digital communication
For communication with the adapter, an Ex ia certified HART modem can be connected to
terminals 5/7 and 6/8.
Note!
The circuits in the following 2 figures are electrically identical as terminal 4 is connected
internally to terminal 5 and terminal 3 is connected internally to terminal 6.
see Figure 3.12 on page 24
see Figure 3.13 on page 24
Existing installations: For existing installations, we recommend that the adapter is wired as
shown in the following figure.
Alternative method of connection of adapter to a control loop without communication
resistor
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