12
MPR180416 Rev. B
www.bindicator.com
CONNECTING HART
Typical PLC/mA configuration with HART
Depending on the system design, the power supply may be separate from the PLC, or integral to it.
HART resistance (total loop resistance, that is, cable resistance plus 250 Ohm (resistor) must be less than 550 Ohm for the
device to function properly.
Power Supply
PLC
HART Modem
HART Communicator
MP Series Air Radar
R = 250 Ohm
NON-HAZARDOUS LOCATION
(SAFE)
HAZARDOUS LOCATION
CLASS I, DIV.2, GROUPS A, B, C, D
24 V
POWER
SUPPLY
AIR RADAR
1/2 “ NPT
METAL CONDUIT