d. the sensor is powered by an Alpha-Log’s actuated output, ensure that the sensor powering
mode and the actuator’s number are correct. If powering mode is set on Pre-feeding time,
ensure that the set time matches the sensor’s specifics. 3DOM’s parameters to be checked
are: Sensor feeding mode, Power output and Pre-feeding time of the concerned measure
Sampling tab (§2.2.4).
2. If the measure is acquired via serial line (sensor connected to Alpha-Log’s port Com3 (10) and/or
Com2 (6)):
a. Ensure the sensor (or ALIEM) generating the measurement is powered and connected as
described in the wiring diagram.
b. Ensure the communication parameters of Alpha-Log’s serial port (see 3DOM’s Input Types)
are configurated correctly in the sensor (or ALIEM).
c. Ensure Modbus parameters for the measure reading are correct. See measure’s Modbus RTU
Master Parameters of the Type tab on 3DOM.
d. It might be useful to check the functioning of the sensor connecting it to the PC, on which is
installed a program that allows communication with Modbus RTU devices.
e. If the measurement is acquired by ALIEM and Alpha-Log has been reconfigured, turn off and
power on ALIEM to reactivate its serial port.
f. If the measure is acquired from Com2 serial port, to wich an E-Log data logger is connected,
make sure that the acquisition rate on the Alpha-Log is less than or equal to 30 seconds since
E-log, if not interrogated within this time, itt turns off its serial port.
3. If the measure is calculated:
a. At least one main measure is in error. Determine the cause.
b. Check the measure configuration. See the measure’s parameters from the Type and Sampling
tabs (§2.2.4).
❖ Alpha-Log won’t update the configuration via FTP
1. Ensure the site that the configuration was sent on has the checkmark near the Configuration
Authority parameter (§2.2.6.1).
2. Ensure Alpha-Log is connected to the Internet by running a connection test (§2.6). In case of failure,
check the FTP protocol’s connectivity parameters set with 3DOM (§2.2.6.1). If they are correct, run a
connection test directly from the program. If this test fails as well, contact the FTP server’s provider.
❖ Alpha-Log won’t send the data files to the FTP server and/or MQTT messsages
1. Ensure Alpha-Log is in Run normal status, which is the normal operative status (§5.1.4.2, menu item:
Status).
2. Ensure Alpha-Log had enough time to generate the elaborations. See parameter Time rate of the
Elaborations tab (§2.2.4).
3. Ensure Alpha-Log had enough time to save/send the processed files. See Elaboration data delivery
time rate and Elaboration data delivery time rate in alarm condition (§4.1.7).
4. For the FTP server:
a. Ensure Alpha-Log is connected to the Internet by running a connection test (§0). In case of
failure, check the FTP protocol’s connectivity parameters set with 3DOM (§4.1.3). If they are
correct, run a connection test directly from the program. If this test fails as well, contact FTP
server’s provider.
5. For MQTT:
a. Ensure Alpha-Log is configurated to connect to the Internet. See the configurated network
interfaces (§4.1.3).
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