Vici 340 Dynacalibrator Manual de usuario descargar pdf (Pagina 24)

Serial Port Communication

The Dynacalibrator Model 340 can be monitored and controlled remotely by

means of a serial port connection and a terminal emulation program such as

HyperTerminal.

The unit is controlled by entering two-character commands, shown in the table

below. Commands may be either upper case or lower case. Parameters enclosed

in brackets ([ ]) are optional. Note that for enable/disable commands, the states

indicated by an “*” are the defaults at power-up. Only the altered set point tem-

perature and function coefﬁcients are retained when power is off and restored at

power-up.

Command Meaning

DC[ [=] n ] Show/set decimation count

(Data logging rate, in seconds)

L+ Start data logging

(Log data at the interval set by the decimation count:

DC=1 sets a one second interval)

L- Stop data logging*

P+ Enable front panel control*

P- Disable front panel control

(Prevent set point from being changed with panel controls)

SC Show coeffecients

TE Read environment temperature

TR Read controlled temperature

TS[ [=] n ] Show/set temperature setpoint

VR Show firmware version

?? Display the list of available commands

* Factory defaults, reset at start-up

Setting Up Serial Communication via HyperTerminal

1. To open HyperTerminal in Windows

, click Start > Programs > Accessories >

Communications > HyperTerminal. The following screen will appear:

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Vici 340 Dynacalibrator Manual de usuario Pagina 24