Western Scale M2000 - DF2500 Command Mode 7

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APPENDICES
The format of the command string sent to the indicator must be as follows:
POSITION CHARACTER CHARACTER VALUES
1
STX
Start of text (02H)
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
Data. These characters are filled by the
numeric weight values used for the TARE and
SETPOINT functions.
9
*Cmd
The command character (see table below)
10
CR
Carriage Return
The M2000 will reply with the DF2500 output string when it receives a valid
command. The returned data will reflect the command executed. Failure of the
indicator to respond with the correct mode or weight indicates that execution of
the command was not permitted.
Some commands may be inhibited (i.e. push to zero) and the return data will
reflect the indicator’s inability to complete these commands.
DF2500 COMMAND MODE 7
This mode is identical to DF2500 Command Mode 6 with the inclusion of an
‘Exclusive OR’ checksum. The checksum is included in both the SEND and
RECEIVE data strings as a two-character string immediately preceding the CR.
The checksum is calculated using an ‘Exclusive OR’ of all characters between
the STX and the first character of the checksum. The STX, checksum and CR
are not included in the checksum . The single byte calculated is converted into
two hexadecimal characters, each representing half of the byte. The most
significant 4 bits are sent first. The values are sent in hexadecimal format (0-F).