Configuration and Use Manual 33
Connecting with the 275 HART Communicator or 375 Field Communicator
Using the Display Using the CommunicatorUsing ProLink IIBefore You Begin Using the Display Using the CommunicatorUsing ProLink IIBefore You Begin Using the Display Using the CommunicatorUsing ProLink IIBefore You Begin Using the Display Using the CommunicatorUsing ProLink IIBefore You Begin
4.3.2 Connecting to a multidrop network
The Communicator can be connected to any point in a multidrop network. See Figure 4-3.
Note: The Communicator must be connected across a resistance of 250–600
Ω . Add resistance to the
connection if necessary.
Figure 4-3 Connecting to a multidrop network
4.4 Conventions used in this manual
All Communicator procedures assume that you are starting at the on-line menu. “Online” appears on
the top line of the Communicator main menu when the Communicator is at the on-line menu.
Figure 4-4 shows the 275 HART Communicator on-line menu for the Model 2700 transmitter with the
intrinsically safe outputs option board.
Figure 4-4 275 HART Communicator on-line menu
4.5 HART Communicator safety messages and notes
Users are responsible for responding to safety messages (e.g., warnings) and notes that appear on the
Communicator. Safety messages and notes that appear on the Communicator are not discussed in this
manual.
Tran s m itter s
Communicator
Master
device
250–600 Ω resistance
(if necessary)