Emerson Model 1700 Manuel D’Utilisation

HART/RS-485 communications parameters support HART communication with the
transmitter's RS-485 terminals.

HART/RS-485 communication parameters include:

•

Protocol

•

HART Address

 (Polling Address)

•

Parity

, Stop Bits, and Baud Rate

Devices with the Chinese-language display do not support HART/RS-485 communications.

The transmitter uses the same RS-485 terminals for HART/RS-485, Modbus RTU, and Modbus ASCII
communications. All RS-485 connection requests must use the same protocol and connection
parameters that are configured in the transmitter.

1.

Set Protocol to HART RS-485.

2.

Set Baud Rate to match the baud rate that will be used by your HART master.

3.

Set Parity to match the parity that will be used by your HART master.

4.

Set Stop Bits to match the stop bits setting that will be used by your HART master.

5.

Set HART Address to a unique value on your network.

Valid address values are between 0 and 15. The default address (0) is typically used
unless you are in a multidrop environment.

Devices using HART protocol to communicate with the transmitter may use either HART
Address

 or HART Tag (Software Tag) to identify the transmitter. Configure either or both, as

required by your other HART devices.

6.6.3

Configure Modbus/RS-485 communications

Display (standard)

OFF-LINE MAINT

 > OFF-LINE CONFG > COMM

Chinese-language
display

Offline Maintain

 > Configuration > Communication > Modbus Address

ProLink II

ProLink

 > Configuration > Device > Digital Comm Settings

ProLink III

Device Tools

 > Configuration > Communications > RS-485 Terminals

Field Communicator Configure > Manual Setup > Inputs/Outputs > Communications > Set Up RS-485 Port

Integrate the meter with the control system

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