Specifications

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ProLinx Communication Gateways, Inc. 21

HART Master Protocol Drive Manual

August 17, 2004

5.3 HART Command Entry Formats

Appendix Reference

Refer to the Appendix for a complete discussion of the HART commands

supported by the module and of the structure and content of the data returned for

each command.

An example of a command list section of the CFG file is displayed below:

[HART Port 0 Commands]

# The file contains examples for a pressure transducer.

START

# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

# Float DB Poll Word Swap Short Func Int. DB Word Swap Use Enable DB Done DB Write DB Swap Byte Fixed

# Enable Address Interval Count Code Address Code Address Count Code Long Address Address Address Code Count Data

3 0 0 0 2 2 44 0 2 0 1 -1 9 -1 0 1 04

5 0 0 0 2 2 44 10 2 0 1 9 19 -1 0 1 04

5 22 0 6 2 2 110 28 1 0 1 19 29 -1 0 0

5 0 0 0 2 2 44 30 2 0 1 29 39 -1 0 1 05

5 40 0 8 2 2 3 48 1 0 1 39 9 -1 0 0

1 50 0 4 2 3 2 54 2 0 1 -1 59 -1 0 0

1 60 0 0 2 3 12 60 14 0 1 -1 -1 -1 0 0

END

Each parameter is discussed below:

Command

Parameter

Range

Description

Enable 0 ,1,2,3,4,5 This field is used to define whether or not the command is to be executed

and under what conditions.

If the parameter is set to 0, the command is disabled and will not be

executed in the normal polling sequence.

Setting the parameter to a value of 1 for the command causes the

command to be executed each scan of the command list if the Poll Interval

Time is set to zero. If the Poll Interval time is set, the command will be

executed, when the interval timer expires.

If the parameter is set to 2, the command will execute only if the internal

data associated with the command changes. This value is valid only when

there is a specified “Write DB Address” (see below) with a non zero

bytecount for write commands.

If the parameter is set to 3, the command will execute only once on startup

of the ProLinx module after a restart. This is mainly used for configuration

of HART devices on startup.

Setting this parameter to 4, places the command in enabled mode. This

option is valid only if there is a specified “Enabled DB Address” (see

below). If the Virtual Database word specified in “Enabled DB Address”

has “-1” the command will be executed otherwise it will not.

Setting this parameter to 5, places the command in one shot enabled

mode. This option is valid only if there is a specified “Enabled DB Address”

(see below). If the Virtual Database word specified in “Enabled DB

Address” has “-1” the command will be executed otherwise it will not.

When the command has been successful the Virtual Database word

specified in “Enabled DB Address” will be written with “0”, so the command

will be executed only once.

Float DB

Address

0 to 3999 This field specifies the internal database register where the floating point

values returned by the command will be placed.