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After sending the weight, the scale waits for an answer before the end of the
preset time (TIME OUT). If no answer is received when this time expires, the scale
displays 'Error 9'. If the character 'ACK' is received before the time has elapsed
(TIME OUT), the scale beeps, displays the indication 'TXD OK' for 2 seconds
and finally beeps again, returning to the weight mode. If a negative answer is
received, 'NAK', the scale displays 'Error 10'.
TPV 1 (IBM Protocol):
In order to operate with the IBM protocol, you must select the value ''TYPE
1'' in the ''CONEX TPV'' option.
This communication mode is compatible with the basic work modes Weight-
Tare, Levels and Part Counting.
There are 2 control functions from the TPV, Weight Request and Autozero
Request. The scale only has 2 possible answers: Weight Transmission and Invalid
Result.
Weight request
TPV Scale
<S><CR><LF>
Weight Transmission trace:
<S><SP><SP><PPPPPPPPP><UU><CR><LF>
Invalid Result trace:
<S><I><SP><CR><LF>
The scale must answer in less than 5 s. The weight trace if the weight is
stable, has varied since the last request, the weight is in range, and the scale is not
autozeroing. If these conditions are not met, the scale returns the Invalid Result
trace.
If the weight is unstable, it waits a maximum time of 3 seconds. If after this
time it is not stable it sends invalid result.
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