Manual

7 DESCRIPTION OF HART INTERFACE

SMARTSENS ORP 1590

www.krohne.com 11/2013 - 4002547102 - MA SMARTSENS ORP 1590 R02 en

7.4 Inputs/outputs and HART

dynamic variables and device variables

PV = Primary Variable; SV = Secondary Variable; TV = Tertiary Variable

Code = device variable code

Device variables

The HART

dynamic variable PV is always connected to the HART

current output which is

assigned to the ORP value.

7.5 Field Communicator 475 (FC 475)

The Field Communicator is a hand terminal from Emerson Process Management that is

designed to configure HART

and Foundation Fieldbus devices. Device Descriptions (DDs) are

used to integrate different devices into the Field Communicator.

7.5.1 Installation

The HART

Device Description for the sensor must be installed on the Field Communicator.

Otherwise only the functions of a generic DD are available to the user and the entire device

control is not possible. A "Field Communicator Easy Upgrade Programming Utility" is required to

install the DDs on the Field Communicator.

The Field Communicator must be equipped with a system card with "Easy Upgrade Option". For

details consult the Field Communicator User’s Manual.

HART

dynamic variable

PV SV TV

ORP Electrode voltage Temperature

HART

device variable

Code Type

ORP value 0 linear

Electrode voltage 1 linear

Temperature 2 linear

.book Page 30 Wednesday, October 30, 2013 11:26 AM