Description of hart interface, 3 connection variants, 2 multi-drop connection (2-wire connection) – KROHNE OPTIWAVE 7300C EN User Manual

Page 114

DESCRIPTION OF HART INTERFACE

114

OPTIWAVE 7300 C

www.krohne.com

03/2014 - 4000172405 - HB OPTIWAVE 7300 R07 en

HART

identification codes and revision numbers

9.3 Connection variants

The signal converter is a 2-wire device with 4...20 mA current output and HART

interface.

• Multi-Drop Mode is supported

Multi-Drop Mode is supported

Multi-Drop Mode is supported
In a Multi-Drop communication system, more than 1 device is connected to a common
transmission cable.

• Burst Mode is not supported

Burst Mode is not supported

There are two ways of using the HART

communication:

• as Point-to-Point connection and
• as Multi-Drop connection with 2-wire connection.

9.3.1 Point-to-Point connection - analogue / digital mode

Point-to-Point connection between the signal converter and the HART

Master.

The current output of the device is passive.

Also refer to

Point-to-point connection

on page 43.

9.3.2 Multi-Drop connection (2-wire connection)

Up to 15 devices may be installed in parallel (this signal converter and other HART

devices).

For an illustration of multi-drop networks, refer to

Multi-drop networks

on page 44.

For data on communication in multi-drop mode, refer to

Network configuration

on page 68.

Manufacturer ID:

0x45

Device:

0xE5

Device Revision:

DD Revision

HART

Universal Revision:

FC 375/475 system SW.Rev.:

≥ 1.8

AMS version:

≥ 7.0

PDM version:

FDT version:

≥ 1.2