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Instruction Manual
IM-106-880C, OI
September 2009
Hazardous Area OCX 8800
http://www..raihome.com
Section 6 Field Communicator
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-1
Field Communicator Connections . . . . . . . . . . . . . . . . . . page 6-1
Hart Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-4
Fieldbus Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-8
OVERVIEW The 375 Field Communicator is a communication interface device. It supports
HART and Fieldbus devices letting you configure and troubleshoot in the field.
The 375 Field Communicator includes an LCD with touch-screen display and
keypad. Use touch-screen or keypad to enter data into 375 Field Communica-
tor.
Three terminals for the lead set are on the top of the 375 Field Communicator.
The lead set and the terminals let you connect the 375 Field Communicator to
a device. An access door ensures only one pair of the terminals can be used
at any time. Several markings indicate which pair of terminals is for which pro-
tocol. The "F" indicates the Fieldbus protocol while "H" indicates the HART
protocol.
The infrared port (IrDA) lets the 375 Field Communicator interface with the
PC. IrDA is a PC interface supported for transfer of device descriptions (DD),
software update, configurations and application licenses. IrDA communication
can either be built into the PC or provided through a USB to IrDA adaptor. The
PC application can either be AMS Suite or 375 Easy Upgrade Programming
Utility. The 375 must be in the "Listen for PC" mode when communicating
through IrDA.
Refer to the 375 Field Communicator User Manual for details.
FIELD COMMUNICATOR
CONNECTIONS
Connecting to a HART loop
Connect 375 Field Communicator with the supplied lead set in parallel with
the device or load resistor, Figure 6-1. The HART connections are not polarity
sensitive. A minimum 250 ohms resistance must be present in the HART loop
for the 375 Field Communicator to function properly.
Explosions can result in death or serious injury. Do not make connections to the Field
Communicator's serial port, digital signal line, or NiCad recharger jack in an explosive
atmosphere.