Rice Lake SCT-10 - Manual (Page 51)

Operation 47
• Hdrl P: remote display shows the net or gross weight, depending on the
remote display setting.
• Hdrl Pn:
See next page for more information.
The instrument sends the following string to the remote display:
&NxxxxxxLyyyyyy\ckckCR
in which:
& = 1 character of string start (38 ASCII).
N = 1 reference character for net weight. (78 ASCII).
xxxxxx = 6 ASCII characters for net or peak weight if present (48 ÷ 57
ASCII).
L = 1 reference character for gross weight (76 ASCII).
yyyyyy = 6 ASCII characters for gross weight (48 ÷ 57 ASCII).
\ = 1 character for separation (92 ASCII).
ckck = 2 ASCII control characters calculated considering that the
characters between “&” and “\” are excluded. The control value is
obtained by carrying out the XOR (or exclusive) operation for the 8 bit
ASCII codes of the characters considered. Character expressed in
hexadecimal is thus obtained, with 2 digits which may acquire values from
“0” to “9” and from “A” to “F”. “ckck” is the ASCII code of the two
hexadecimal digits.
CR = 1 character for string end (13 ASCII).
In case of negative weight, the first character on the left acquires the value « - »
(minus sign - ASCII 45).
If the protocol on Hdrl P 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 Hdrl Pn has been set, in addition to what stated in Hdrl P protocol, the
instrument transmits the prompt net every 4 seconds in the gross weight field, if
the instrument is in the net mode (see Section 3.1 “Semi-Automatic Tare (Net/
Gross)” on page 32).
In case 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 and net weight are
replaced by the messages found in “Alarm Descriptions” on page 33.
Note