Serial procedures -10 – Hardy HI 2151/30WC Single-Scale Controller User Manual

Page 74

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HI 2151/30WC MANUAL

5-10

DISPLAY

MEANING

PRINT

Selects print mode. P sets print trigger and "-" sets
continuous output.

BI-DIR

Selects bi-directional mode. The bi-directional
codes are:

A

Altered print (removes checksums)

P

Bi-directional with print trigger

-

Bi-directional without print trigger.

ADDRESS

Selects the instrument address. This is a two digit
value, being 01 to 99.

ECHO

Selects whether instrument commands are returned
or displayed. Echo can be turned on or off. If the
(bi-directional only) Echo is turned on, commands
sent to the instrument are returned. If turned off,
only data transmitted from the instrument will be
displayed.

CONTRL

Selects hardware and software handshaking
control. The hardware mode controls Request to
Send (RTS) lines. In this mode the receiving device
must set Clear to Send (CTS) lines to high to enable
transmission. The software mode controls the trans-
mission by the following control codes:

XOFF - (CTRL-S) halt transmission
XON - (CTRL-Q) resume transmission

When a serial port is configured for bi-direc-
tional communication with a Print Trigger for-
mat, the control port will respond to the remote
function print or serial print command just like a
print port.

Serial Procedures

NOTE:

If you have a problem with weight readings not changing or not being able to exit
from a menu, check to see that the instrument has not been set in the Display Hold
mode by a serial command. A C H (change hold) command will toggle between Hold
and Unhold. There is no visual indication showing the present mode.

Step 1.

Enter the Option Setup Menu by pressing the 7/Option button.
The Rate of Change Sub-Menu ROC appears.

NOTE:

Display may show an option other than "ROC", depending upon the options installed.
The HI 2151/30WC will show the first available option, in the example, ROC.

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