Procedural Considerations; Transmitter Type And Communication Mode - Honeywell MCT404 User Manual

1. Introduction

1.2. Transmitter Type and Communication Mode


The MC Toolkit application software is used for configuring, calibrating, monitoring, and
diagnosing the Honeywell Digital Enhanced (DE) devices.

Field Device Configurator (FDC) application software is used for configuring, calibrating,
monitoring, and diagnosing HART devices. FDC uses the IEC 61804-3 EDDL standard
specification for providing an open solution for supporting any HART device with a registered DD
file with HART Communication Foundation (HCF).

Procedural Considerations

CAUTION! WARNING!
In some cases, the use of a field communicator with a transmitter that is connected on-line can
have an adverse effect on process operations.
Before using the MC Toolkit, be certain that you know the potential consequences of each procedure,
and that you use the appropriate safeguards to prevent problems. For example, if the transmitter is an
element of a control loop, the loop should be placed in the manual operating mode, and alarms and
interlocks ("trips") should be disabled as appropriate before beginning the procedure.
The primary factors to be considered are separated into three categories under the following three
headings.
The information under the following headings is intended as background for use of the DE Procedures
and HART Procedures, which are given in separate sections of this manual.
1.2 Transmitter Type and Communication Mode
The MC Toolkit can be used with various types of field transmitters, most of which can be operated in
more than one mode.

Honeywell DE transmitter operating in Smart Analog Mode

Honeywell DE transmitter operating in Digital Enhanced (DE) Mode

Honeywell (and other) HART transmitter operating in point-to-point (Analog w/ HART digital
mode)

Honeywell (and other) HART transmitter operating in multi-drop (HART-only digital mode)
The salient characteristics of each item listed, and the implications of each characteristic in procedures
are described under Transmitter/Communications Characteristics
Revision 3 MC Toolkit (MCT404) User Manual 3