Partlow MRC 7000 Installation & Operation Manual page 49

One and two pen circle chart recorder
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Momentary ER 70 -
Controller unable to respond
within 250 milliseconds
Momentary ER 71 -
Byte received before the
response was transmitted
Momentary Er 72 -
Incorrect Block Check
character was received
Momentary Er 73 -
Byte received with incorrect
parity.
1. May occur when incrementing or decrementing a
value. Error clears itself.
1. Computer program must wait longer for a response
from the instrument.
1. Data received not valid, possible corruption on the
comm line. Possible noise problems. Check baud
rates, instrument addresses, line connections, and
termination.
1. Check baud rate.
2. Possible noise problems. Check instrument
addresses, line connections, and termination.
49

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