Emerson Model 1700 Manuel D’Utilisation

HART/Bell 202 communications parameters support HART communication with the
transmitter's primary mA terminals over a HART/Bell 202 network.

The HART/Bell 202 communications parameters include:

•

HART Address

 (Polling Address)

•

Loop Current Mode

 (Chinese-language display and ProLink II) or mA Output Action

(ProLink III)

•

Burst Parameters

 (optional)

•

HART Variables

 (optional)

1.

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.

2.

Ensure Loop Current Mode (mA Output Action) is configured appropriately.

Enabled

The primary mA output reports process data as configured.

Disabled

The primary mA output is fixed at 4 mA and does not report process
data.

If you use ProLink II or ProLink III to set HART Address to 0, the program automatically enables
Loop Current Mode

. If you use ProLink II or ProLink III to set HART Address to any other value, the

program automatically disables Loop Current Mode. This is designed to make it easier to
configure the transmitter for legacy behavior. Always verify Loop Current Mode after setting
HART Address

.

3.

(Optional) Enable and configure Burst Parameters.

In typical installations, burst mode is disabled. Enable burst mode only if another device on
the network requires burst mode communication.

4.

(Optional) Configure HART Variables.

Integrate the meter with the control system

103