Continuous Weight Transmission To Remote Displays Protocol - LAUMAS TLU Installation And User Manual

CONTINUOUS WEIGHT TRANSMISSION TO REMOTE DISPLAYS PROTOCOL

This protocol allows the continuous weight transmission to remote displays. The communication
string is transmitted 10 times per second.
Following communication modes availables (see SERIAL COMMUNICATION SETTINGS section):
- : communication with RIP5/20/60, RIP50SHA, RIPLED series remote displays; the remote
display shows the net weight or gross weight according to its settings.
- : communication with RIP6100, RIP675, RIP6125C series remote displays; the remote
display shows the net weight or gross weight according to its settings.
- : communication with RIP6100, RIP675, RIP6125C series remote displays.
The instrument sends the following string to the remote display:
&NxxxxxxLyyyyyy\ckckCR
where: & = 1 initial string character (38 ASCII).
N = 1 character of net weight identification (78 ASCII).
xxxxxx = 6 characters of net weight or PEAK if present (48  57 ASCII).
L = 1 character of gross weight identification (76 ASCII).
yyyyyy = 6 characters of gross weight (48  57 ASCII).
\ = 1 c. of separation (92 ASCII).
ckck = 2 ASCII checksum characters calculated considering the characters between &
and \ excluded. The checksum value is obtained from the calculation of XOR (or exclusive)
of the 8-bit ASCII codes of the characters considered. This obtains a character expressed in
hexadecimals with two digits that can have the values from "0" to "9" and from "A" to "F".
"ckck" is the ASCII code of the two hexadecimal digits.
CR = 1 c. of end string (13 ASCII).
In case of negative weight, the first character on the left acquires the value « - » (minus sign - ASCII
45).
If  has been set, the decimal point at the position shown on the instrument's display can also
be transmitted. In this case, if the value exceeds 5 digits, only the 5 most significant digits are
transmitted, while if the value is negative, no more than the 4 most significant digits are transmitted.
In both cases, however, the decimal point shifts consistently with the value to display.
If has been set, in addition to what stated in protocol, the instrument transmits the
prompt  every 4 seconds in the gross weight field, if on the instrument, it has been carried out a
net operation (see SEMI-AUTOMATIC TARE (NET/GROSS) section).
In case of weight value is under -99999, the minus sign ('-') is sent alternated with the most
significant figure.
In case of error or alarm, the 6 characters of the gross weight are substituted by the
messages found in the table of the ALARMS section.
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