Connection Procedure - Vega VEGATRENN 141 Operating Instructions Manual

5 Connecting to power supply
HART multidrop mode
10
In HART multidrop mode, the measured values are transmitted
on the same cable (bus) as the digital HART signals. An analogue
4 ... 20 mA transmission is not possible, the current is limited to 4 mA.
An own, unambiguous address (address range 1-15) must be as-
signed to each connected sensor. In this mode, up to five sensors can
be connected to one channel.
5.2

Connection procedure

The pluggable terminals can be removed as needed to allow more
convenient connection. To make the electrical connection, proceed as
follows:
1. Mount the instrument as described in the previous chapter
2. Connect sensor cable to terminal 1/2, and where applicable, con-
nect the screen
3. Connect power supply (switched off) to terminal 16/17
4. Connect processing circuit, e.g. from PLC to terminal 11/12 or
10/12 (with HART resistor), and screen, if necessary
The electrical connection is finished.
Note:
If several sensors should be connected in HART multidrop mode, a
respective HART address must be assigned to each sensor before
connecting to VEGATRENN 141.
VEGATRENN 141 • 4 ... 20 mA/HART