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Laurel Electronics LTSE6 - Manual User Manual

Page 21

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Remote A is an addressable input mode that uses the K command letter. It can convert remote
data on one or more transmitters having the command address in a multi-point configuration or a
single transmitter having the command address in a point-to-point configuration.

Remote S is not addressable, and data representing a value to be retransmitted as an analog
output is received via a point-to-point connection. The value is stored where it may be selected for
Alarm comparisons. If a Coded Alarm character is included, it overrides the internal alarm compa-
risons.

Remote C is used to extract data from an ASCII string that contains multiple data values and non-
numeric characters. It can accommodate selected Start and Stop characters. Any number of
characters after the start character can be masked off up to the beginning of the desired data. From
1 to 6 numeric characters can be selected for the data (8 characters if sign and decimal point are
included). The following parameters determine the operation:

1. Start character. This can be any ASCII character in the received string. It must be at a fixed

number of characters from the beginning of the desired data, which must have a fixed
number of characters. Enter 00 if no start character is available. The stop character then
becomes the start character.

2.

Stop character

. Set to 00 if no stop character is available. Note: Only either the start or

stop character can be set to 00. The start and stop characters cannot be any character
included in the data string.

3.

Skip No

. Number of characters following the Start character to be ignored.

4.

Show No

. Number of characters following the ignored characters to be processed.

Warning: Instrument Setup (IS) software sets the mode to Remote A when
first accessing the transmitter or performing a

Get Setup

command. This is

because the transmitter will not communicate with the host PC using IS
software in the Remote C mode. The user must reset the mode to Remote C
prior to executing a

Put Setup

command, which will load the setup information

into the transmitter.

If you desire the transmitter to operate in the Remote C mode and you later need to perform a

Get

Setup

command to change a setup parameter, do not forget to change the transmitter back from

Remote A to Remote C prior to performing a

Put Setup

command.

Remote A Data Format: *#KSDDDDDD.A

*

= Recognition character. Another command recognition character may be chosen to

make the transmitter compatible with an existing system. The transmitter will still
respond to an asterisk.

#

= Device address. See Address Codes table on next page.

K

= Command letter.

S

= Sign of value (optional), space (or +) for positive, - for negative value.

D

= Data. Number of digits can be 1-6.