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SIMATIC PDM, HART Handheld:
You can set the HART parameters either with an external HART handheld or with
SIMATIC PDM. SIMATIC PDM accesses through the HART analog module while
the HART handheld is connected directly parallel to the field device.
PROFIBUS-DP
4 to 20 mA
Field device with
HART functionality
Figure 15-3 System Environment for Using HART
ET 200iS Distributed I/O Station
A5E00087831-02
Fieldbus isolating transformer
Analog Electronics Modules with HART
SIMATIC PDM
HART resistor
ADU
M : Chassis (internal)
HART HANDHELD
L+: 24V
Filtering out
Modem
HART signals
Analog-to-digital conversion
of cyclic measured value
15-5
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