Emerson Process Management IM-106-910Xi instruction manual Field Communicator Menu Trees

Instruction Manual

IM-106-910Xi, Original Issue November 2010

Xi Advanced Electronics

Field Communicator Menu Trees

OFF-LINE AND ON-LINE OPERATIONS

Connect the 375/475 Field Communicator in the Xi (Xi-to-DCS) 4-20 mA signal loop or to the Xi terminals as shown in Figure 4-3 and refer to Figure 4-4 for the 375/475 Field Communicator Xi menu tree.

The 375/475 Field Communicator can be operated both off-line and on-line.

Off-line operations are those in which the communicator is not connected to the O2 Probe. Off-line operations can include interfacing the 375/475 Field Communicator with a PC (refer to applicable HART documentation regarding HART/PC applications.)

In the on-line mode, the 375/475 Field Communicator is connected to the

4-20 mA analog output signal line. The communicator is connected in parallel to the O2 Probe or in parallel to the 250 ohm load resistor.

4-11