Siemens sitrans PROBE LU - Applications; Level, Volume, or Flow Measurement; System Implementation

A5E32337695 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS Page 5
SITRANS Probe LU
SITRANS Probe LU System Implementation
SITRANS Probe LU supports the HART communications protocol and SIMATIC® PDM
software.
1 2
Typical PLC/mA configuration with HART
Programming
SITRANS Probe LU carries out its level measurement function according to the set of
built-in parameters. Parameter changes can be made via the handheld programmer, via a
PC using SIMATIC PDM, or via a HART Handheld Communicator.
SITRANS Probe LU Approvals and Certificates
1.
Depending on the system design, the power supply may be separate from the PLC, or
integral to it.
2.
A 250 Ohm resistor may be required if the loop resistance is less than 250 Ohms.
Note: Please see Approvals on page 10 for an approvals listing.
handheld programmer
active PLC
SITRANS
Probe LU
HART modem
HART
communicator
power supply
1
R
2
= 250 Ω