Thermo Scientific AquaSensors
™
DataStick
™
Ethernet Communications User Guide
42
The Pending Writes counter is incremented every time the Ethernet product has been
asked to write to the DataStick but has not yet completed the operation. The counter is
decremented each time a write completes.
The Read Errors counter is incremented every time the Ethernet product receives an error
while trying to read from the DataStick. It is a count of the total number of read errors
for all of the protocols supported. Some configuration data might not be available
depending on the type of Sensor Head installed in the DataStick Body. When the
Ethernet product tries to read this unavailable data the DataStick will respond with an
error and this will cause the Read Errors counter to be incremented. The Ethernet
product will realize that this data is unavailable and stop requesting it.
The Write Errors counter is incremented every time the Ethernet product receives an
error while trying to write to the DataStick. It is a count of the total number of write
errors for all of the protocols supported. For instance, if an attempt is made to change the
Sensor Filter value to 200 using the Web Server’s Configuration Page, the DataStick will
respond with an error because the largest acceptable value is 100 and this will cause the
Write Errors counter to be incremented.
The Timeout Errors counter is incremented every time the Ethernet product fails to
receive a response from the DataStick in a reasonable amount of time. It is a count of the
total number of write errors for all of the protocols supported.
The error counters can be cleared to 0 by clicking the Clear Error Counters button.
5.4.3 Upgrading the Firmware
The firmware in the Ethernet product can be upgraded by clicking on the ISP Download
button. Thermo Fisher Scientific will provide you with further instructions in the event
that a firmware upgrade becomes necessary.
