Specifications

17
SERIAL DATA OUT AND WEIGH ON DEMAND FUNCTION
The PC series scale will transmit SMA Level 1 compliant serial weight data when the PRINT key is
depressed
or
when connected to a host (Weight On Demand). When connected to a host, serial
weight data will be transmitted to the host in a SMA Level compliant format when the host sends the
scale a <If> W <cr> (linefeed, capital W, and a carriage return)
or
in an alternate format when the
host sends the scale a W (capital W only).
The Weight On Demand feature equires a special serial cable (Cardinal P/N
8529-B305-0A) connected between the scale and host.
SMA Level 1 Compliant Format
When the PRINT key is depressed or the Weight On Demand command (<If> W <cr>) is sent by the
host, the weight data will be transmitted in the following format:
<If>srnmfxxxxxx.xxxuuu<cr>
where: <If> - line feed (oA hex)
s - Status 'Z' = Center of Zero
'O' = Zero Error
' ' = space (none of the above)
r - Range '1'
n - Gross/Net status
m - Motion Status 'm' = scale in motion
' ' = scale not in motion
f - Reserved for future use
xxxxxx.xxx - Weight (fixed at 10 characters)
uuu - Unit of measure
<cr> - Carriage return (0D hex)
Alternate Weight On Demand Format
When the alternate Weight On Demand command “W” (57H) is sent, the weight data will be
transmitted in the following format:
Response: Weight
1 byte STX 02H
5 byte WEIGHT Kg = XX.XXX
1 byte CR 0DH
Response: ERROR
1 byte STX 02H
1 byte ? 3FH
1 byte STATUS
1 byte CR 0DH
STATUS:
Bit 4 = 1 center of zero
Bit 2 = 1 under zero
Bit 1 = 1 out of range
Bit 0 = 1 motion