Transcell Technology PC 150, Руководство по обслуживанию

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Page B-3
B.1.4 TOLEDO 8213 DEMAND FORMAT
Figure B-3 shows the weigh data record sent to the host when the scale receives a Print
(“W”) command. The same weigh data record is sent out of the serial port if the PRINT key
is pressed on the scale’s front panel. If the weigh data is invalid, the scale responds with a
status record instead – as shown in Figure B-4. See section below for more information.
NOTE: Since this SDF (Serial Data Format) does not support units of measure. It is
recommended that lb/kg conversion be disabled.
<STX> XXX.XX <CR>
Weight Data
Start
Transmission Carriage
Return
FIGURE B-3. Toledo 8213 “Demand” Weigh Data Record
<STX> <?> <SS> <CR>
Start
Transmission Carriage
Return
Status Byte: ( "1" = "True")
Invalid Weight
B7 Parity bit
Center of zero
Outside zero capture range
Under zero
B6
Bit Function
Always "1"
Always "1"
B5
B4
B3
B2
B1
B0
Out of range
Motion
See Table
STATUS BYTE TABLE
FIGURE B-4. Toledo 8213 “Demand” Status Record
B.1.4.1 RECOGNIZED HOST COMMANDS
These commands are issued from the host to the scale and are single ASCII
characters.
“W” - This command is sent to the scale to print the indicated display. The scale
will respond with the status record if the weight is less than zero or the scale
is in motion, positive overload or negative overload. Otherwise, the scale
responds with the weigh data record.
“H” – Same as the “W” command except that the scale outputs an extra character
at the beginning and end of the weigh data record.
“Z” - This command is sent to the scale to zero the scale. The scale will disregard
this command if the scale is in motion, positive overload or negative
overload. The scale will also disregard this command if it is not in gross mode
or within the zero reset range. Whether the command was successful or not,
the scale sends a status record to the host.