Rice Lake Signal Conditioning Transmitter/Indicators - Manual (Page 62)

58 SCT Weight Transmitter Operator’s Manual
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 net mode. (see Section 3.1 “Semi-automatic Tare (Net/
Gross)” on page 33).
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
Table 3-1 on page 34.
3.15 Interface to Remote Display
Remote Display (Laser Light)
1. Press and hold , then press to enter set-up menu, CALIb is displayed.
2. Press or until SErIAL is displayed, press . rS485 is displayed.
3. Press , nOnE is displayed.
4. Press or until COntIn is displayed, press .
5. Press or until NOd td is displayed.
6. Press or until desired protocol is displayed, press .
7. Press twice to exit set-up menu.
Laser Light Setup
E CHAR = CR
LWPOS = 7
LENGTH = 19
Laser Light SCT
Connector Pin Connector
J8 (RS-232) 3 RS-485 RX-
5 RS-485 RX+
OR
J9 (RS-485) 1 RS-485 RX+
2 RS-485 RX-