Emerson Process Management OXYMITTER 4000 instruction manual Hart Communicator PC Connections

Hazardous Area Oxymitter 4000

Instruction Manual

IB-106-340C Rev. 4.1 July 2004

AC L1

AC N

+

-

+

4-20

-

TERMINAL BLOCK

LOOP CONNECTORS

SERIAL PORT & BATTERY	LOOP CONNECTORS	USE INTERFACE
		00275 0013 ONLY
CHARGER MUST		SERIAL PORT
NOT BE USED IN
HAZARDOUS AREAS

HART COMMUNICATOR

REAR PANEL

RL < 250Ω

4-20 mA SIGNAL LINE

ANALOG OUTPUT DEVICE

250 OHM

LOAD

RESISTOR

(NOTE)

HART

COMMUNICATOR

NOTE: THE SIGNAL LOOP MUST BE BROKEN TO INSERT THE OPTIONAL 250 OHM LOAD RESISTOR.

23230002

Figure 7-2. Signal Line Connections, < 250 Ohms Load Resistance

7-3 HART COMMUNICATOR PC CONNECTIONS

There is an option to interface the HART Com- municator with a personal computer. Load the designated AMS software into the PC. Then link the HART Communicator to the PC using the interface PC adapter that connects to the serial port (on the communicator rear panel).

Refer to the proper HART Communicator docu- mentation in regard to the PC interface option.

7-4 OFF-LINE AND ON-LINE OPERATIONS

The HART Communicator can be operated both off-line and on-line.

a.Off-line operations are those in which the communicator is not connected to the Haz- ardous Area Oxymitter 4000. Off-line op- erations can include interfacing the HART Communicator with a PC (refer to applica- ble HART documentation regarding HART/PC applications.

b.In the on-line mode, the communicator is connected to the 4-20 mA analog output signal line. The communicator is connected in parallel to the Hazardous Area Oxymitter 4000 or in parallel to the 250 ohm load resistor.

NOTE

If the HART Communicator is turned on while connected to the 4-20 mA

analog output signal line, an undefined7 status indication appears while the

communicator warms up. Wait until the warmup period ends to continue.

c.The opening menu displayed on the LCD is different for on-line and off-line operations. When powering up a disconnected (off-line) communicator, the LCD will display the Main Menu. When powering up a connected (on-line) communicator, the LCD will display the On-line Menu. Refer to the HART Communicator manual for detailed menu information.

Rosemount Analytical Inc. A Division of Emerson Process Management HART/AMS 7-3