Laurel Electronics Custom ASCII Protocol For Laureate Series 2 Digital Panel Meters, Counters, Timers & L-Series Transmitters User Manual

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Mode 7 is not addressable, and data representing a value to be displayed is received in a point-
to-point connection. In addition to being displayed, that value is put into Item 3, where it may
be selected for Alarm comparisons and/or for Analog Output. If a Coded Alarm character is
included, it overrides the internal alarm comparisons.

Modes 8-11 are able to extract one value of data from a sequence of values, and display that
particular value only. Using this mode, multiple slave counters connected to a Host Counter
could each be displaying a different Item value. Also, the extracted value is put into Item 3
where it may be selected for Alarm comparisons and/or Analog Output. If a Coded Alarm
character is included at the end of the sequence, it is ignored. The remote display reading can
only be changed by Meter Reset, a *1C4 Remote display reset command, or another remote
display H or L command.

Mode 12 - Remote display "C" allows extraction of data from an ASCII string that contains
multiple data values or non-numeric characters. It can accommodate selected Remote Start
and Remote Stop characters. Any number of characters between the Remote Start character
and the data can be masked OFF. Up to 8 display characters (including sign and DP) can be
masked ON. Any number of characters between the last displayed character and the Remote
Stop character can be masked OFF.

When CONFIG, CXXX is set, the meter is a Masked Remote Display, and the following para-
meters determine its operation. These must be set while the meter is set to something other
than CONFIG, CXXX, because that is the one setting for which there is no two-way serial
communication with the meter. It is suggested to use CONFIG, 6XXX to set the following
parameters, and then to use CONFIG, CXXX for operation.

1. Remote Start character (set to 00 if none desired).
2. Remote Stop character (set to 00 if none desired).
Note: Only one of the above can be set to 00.
3. Number of characters following the Remote Start character to be ignored.
4. Number of characters following the ignored characters to be displayed.

Either Instrument Setup.exe or Serial.exe may be used to set the values for the Remote Display
C mode. These programs may be downloaded from our website.

COMMAND FORMATS

The basic two Command formats of the data sent via Serial Communications are:

*#CSDDDDDD.A where the decimal point is to the right of any one of the D’s (digits).
*#CSD.DDDEPA This is the exponential format. The decimal point is fixed.
Alarm comparison and Analog Output are not valid in this format.

= Recognition character

= Device address from 1-9, A to V, or 0 for common address.

= Command letter H, K, L.