Tishunt - transducer interface shunt, Tishunt - transducer interface shunt 51 – MTS SWIFT 40 Sensor User Manual

Page 51

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TISHUNT - Transducer Interface Shunt

SWIFT 40 Sensors

Software Utilities

51

TISHUNT - Transducer Interface Shunt

This program is a utility with various functions related to shunts. The SWIFT
system includes the ability to connect a shunt resistor across each of the resistive
bridges in the transducer. This shunt function can be used as a simple verification
that the SWIFT system is working normally. Shunt verification activates the
shunts and compares the results to those recorded during calibration. While this
does not guarantee the transducer is still in calibration, it provides some level of
confidence it is working normally. If the shunt results differ significantly from
those recorded during calibration the SWIFT system should be evaluated for
possible problems.

Syntax

The tishunt command requires one argument, as follows:

tishunt port box

port is the communications

1 = COM1:

2 = COM2:

box is the SWIFT-TI communications address

1 = lowest possible address

9 = highest possible address

Example

The Shunt Main Menu options are described in the following paragraphs.

Option 0

Use this option to exit the program.

Option 1

Use this option to read the shunt tolerance, the last measured shunt values, the
reference values, and the shunt error status.

Note

The shunt error status is not maintained over power cycles, so it is only
valid if the shunt is executed after power is applied. Refer to

, “Shunt

Error Status,”

on page 58.

Initializing box...SWIFT TI Shunt Main Menu

0...exit
1...Read current Shunt values
2...Set the TI shunt tolerance
3...Restore Shunt parameters from a file
4...Scan inputs & outputs with shunts
5...Command a shunt cal
6...Write last shunt measurements to a parameter file

Enter choice:

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