33
ULM.0.01.000RE_10_08_20
Fig. 5.4 Connection of ULM-31A1, ULM-31-HF, ULM-31-HF-F, ULM-31A1-HF
and ULM-31A1-HF-F level transmitters. Option 2.
1 – PC connection;
2 – RS-485/USB converter;
3, 6, 15 – Shield connection of the interface lines;
4 – Control unit, for example, PLC;
5 – HART-modem connection socket;
7 – Analog display unit;
8 – 24V power supply;
9 – Relay indication unit, light indication arrangement example;
10 – MicroSD memory card socket;
11 – Switch, RS-485 line matching load R
A-B
=120Ω;
12 – Modbus address switch;
13 – “Backup program” switch, reset to factory settings;
14 – Selector of the used interface (HART or Modbus).
