HBM WE2108 Serie Referenzhandbuch Seite 102

102
(Write Parameter)
Writing in the parameter memory (RAM)
Application examples:
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HBM
WRP
Command:
Parameter:
Range:
Factory setting:
Password protection: depending upon the address
Parameter backup:
Query:
Certain parameters can be accessed directly by individual user software. The address
assignment of the parameters is stated in the appendix for this purpose.
The input and output is in the ASCII format (3 characters / byte).
Parameters with a setting range of more than 255 are composed of several bytes. Since
the commands RDP and WRP work in the byte format, a direct relationship between the
answers and weight values for instance does not exist. The values must be composed by
the external program (the LSB is located on lower address, see appendix exam-
ple).Instead of this, the commands LIV, CAP, and CTR should be used from software
P82 on.
The complete parameter set can also be transferred to any number of new scales with-
out knowledge of the address assignment if all settings are made on a "Master" scale
(possibly by menu). For this purpose a copying loop (software of the user) must read out
with RDP the parameters of the master byte by byte and write them with WRP in the new
WE2108.
Write−protected parameters can also be changed through WRP only with password. If
authorization is lacking, the command is not executed and the answer ?CRLF is output.
Changes by WRP act basically only on the RAM memory. TDD1 must be entered subse-
quently for backing up in the EEPROM.
Without password TDD1 stores only the free parameters (limits, filters, manual tare
value, interface parameters). If the password is set, the scale settings (calibration, zero
run−on etc.) are also stored. In this case the calibration counter is incremented if legal−
for−trade mode is set.
If a parameter is set with WRP and then read with RDP, then the result is always the
newly written value, even if this has not yet been activated and stored by TDD1. To read
the values from the EEPROM, the changed values must be overwritten again with TDD2.
WRP(x),(y);
(writes byte y at address x)
2
0...219,0...255
−−−
with command TDD1
not intended
Scale electronic unit (NSW)
WE2108