HBM WTX110, Руководство по эксплуатации

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Data transfer
194
A4774-1.0 HBM: public
WTX110
Weighing terminal
→
PC
Control character /
data Comment
Start character Can be set in Service Mode or also turned off
Data fields in ASCII
format Data fields and their length, order and the position of the
decimal separator depend on the configuration. The individual
fields are separated from each other by a semicolon.
End character Can be set in Service Mode or also turned off
Checksum Can be set in Service Mode or also turned off; optionally
XOR, twos complement or without checksum
PC
→
weighing terminal
Control character Comment
ACK Positive response when a data set is received correctly
PC
→
weighing terminal
Control character Comment
NAK Positive response when a data set is received correctly
The Timeout time for receiving ACK or NAK is 6 seconds. If no response has
been received after 6 seconds, the data set is repeated. If NAK is received or
there is no response, the data set is repeated a maximum of 4 times. If there is
no response or if only NAK has been received after sending a total of 5 times,
an error message is generated that must be acknowledged by the user.