Multidrop mode (‘three-wire’), 2 ids and revision numbers – KROHNE UFC 030 HART User Manual

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KROHNE Messtechnik GmbH & Co. KG · Ludwig-Krohne-Str. 5 D-47058 Duisburg

5/20

Tel.: 0203-301 0 Fax: 0203-301 389 · e-mail: [email protected]

Supplementary Installation and Operating Instructions UFC 030 HART

HC275, FC375, AMS, PDM

In case the UFC 030's current output shall work continuously active a 'third wire' is needed to properly connect it
together with two-wire loop powered devices in the same network.

2 IDs and Revision numbers

The HART Device Descriptions described in this document have the following IDs and revision numbers:
Manufacturer ID:

69 (0x45)

Device Type:

231 (0xE7)

Device Revision:

DD Revision:

HART Universal Revision: 5
HC 275 OS Revision:

≥ 4.9

FC 375 System SW Rev.:

≥ 1.6

AMS Version:

≥ 6.0

PDM Version:

≥ 5.2

FDT Version:

≥ 1.2

For information about Transmitter Revisions and related Device Descriptions refer to the KROHNE HART Device
List.

Multidrop Mode (‘three-wire’)

(Connecting two-wire and four-wire devices in the same network)

≥ 250 Ω

HART

two-wire
loop powered
devices

4 mA

. . .

Addr. > 0

4 mA

. . .

four-wire
active
source
devices

4 mA

HART

Secondary Master

Primary Master

Power
Supply

HART

Modem

UFC 030
Addr. > 0

Terminal V+

Terminal I/C