Demand Print Displaying; Serial Commands; Remote Display Command Format - Rice Lake LaserLight3 Series Technical Manual

LaserLight3 Remote Display
4.4

Demand Print Displaying

The indicator and LaserLight3 remote display can be set up for displaying a demand print string. Demand print display is set up
using Auto-Learn when the HoldWt (Hold Weight) parameter is turned on (see
manually by configuring the parameters of the remote display and indicator. Using Auto-Learn, ensure HoldWt is on and
continuously push the print button on the indicator to acquire a demand print display.
4.5

Serial Commands

The LaserLight3 has the ability to receive commands, display messages, or use digital I/O. Commonly used serial command
scenarios, include:
• When interfaced to an indicator which has a configurable serial string, the print ticket format can be configured, allowing
the user to press Print on the indicator and send a message which temporarily interrupts the streamed weight display.
The length of time the message displays is defined by the MSG TM (Message Time) parameter in the Config menu
(Section 5.2.6 on page
• If the LaserLight3 remote display is interfaced with a programmable smart indicator, a user program can be written
allowing the user to send messages. The user can send one message to temporarily override the streamed weight
display.
• The remote display accepts serial commands to return the current time and date or to set the time and date to a new
setting. This information can be used in conjunction with user programs in the indicator and remote display to ensure
both have the same time and date settings.
4.5.1

Remote Display Command Format:

The following is an example of serial command format or message formatting commands:
|<AA><CC>|<Data>!
Where:
| = Pipe character (Ox7C)
AA = Two byte address, ASCII digits (0-31)
CC = Two byte command, ASCII characters
| = Pipe character (Ox7C)
Data = Data depending on command
! = Exclamation point character (0 x21)
NOTE: Commands, GT, ST, DI, DO, GV, and the feedback results are not displayed on remote display. Display message
commands must not be sent faster than once every second.
Command
DM Display message <Data> is a six character message
GT Get time and date; Information gathered is sent back to the indicator; Ensure both remote
display and indicator match
ST Set time and date
NOTE: Two spaces are required between time and date entries. Time must be
entered in a 24-hour format.
DI Read digital input levels and returns a hex representation of 0 - F (0 - 15) of all active
digital inputs bits. Digital Input bits follow:
• Digital input bit 1 = 1
• Digital input bit 2 = 2
• Digital input bit 3 = 4
• Digital input bit 4 = 8
NOTE: The returned value must be converted from hex to decimal. For example, all
bits turned on would be a hex value of F (15 in decimal).
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63).
Description
Table 4-3. Remote Display Commands
www.RiceLake.com
Section 5.2.6 on page 63). It can also be set up
Example
|00DM|HELLO !
Alternative command |00DM HELLO !
|00GT!
|00ST08:00:00 2003-01-31!
|00ST15:00:00 2003-01-31!
To obtain a P.M. time of 3:00P.M.
|00DI!