IMB222
Rev.4.05 May 2022
61
ATTENTION: This procedure ALWAYS involve restoring the factory configuration.
16 Troubleshooting
In this chapter, the most common problem and their possible solutions are described. LEDs
on EvominiSER can be used to determine device status.
NOTE: if at power up LEDs are off, they have probably been disabled. Enable them by reading
the device with EvoPlatfor
m and turn to ON both led status in “Info & Setup” tab.
16.1
Communication errors
In case of missing communication, the following list of operations should be checked.
1) The master unit (e.g. PLC) must be configured with the same serial communication
parameters (baud rate, Parity, number of stop bits) of the EvominiSER device
2) The master unit is requesting data from a Modbus address on the network that does not
exist.
If the listed above has been executed but there is still a missing communication, please
restore COM factory settings as described in chapter 14.1.5.
16.2
LEDs are off after device power up
If the LEDs on the device do not light up at power-on, check the status of the coils relating
to the LEDs (Coils with address 4 and 5). Refer to chapter 11 "Modbus Coils Table"
16.3
ERR LED
If ERR LED is permanently on, the device is in boot mode
. This happens either if the “update
FW”
command from tools has been sent or if device firmware is corrupted. In the latter case,
it is necessary to upload the device with a new firmware. See chapter 15 for more information
about this operation.
If ERR LED blinks, the non-volatile memory is corrupted or the sensor is detecting a process
variable beyond the allowed limits
Try use “Set default values” command
(refer to chapter
14.1.5) or check if the sensor is working in the allowed ranges.. If, after device reset, ERR
LED is still blinking, please contact our technical service: carefully read the instructions given
in chapter 5.1.
16.4
PWR LED
If the device is working properly after have being turned on, the PWR LED should be
permanently on. However, if PWR LED is still blinking after device initialization, an error has
occurred.
If PWR LED blinks rapidly (with period less than one second), a short circuit has been
detected. Immediately turn off the device. Wait few seconds and turn the device on again.
If the same error is given, turn off the device and contact our technical service.
If PWR LED blinks slowly (with period of about one second), either a missing communication
between the transmitter and the sensor probe or a measurement error has occurred.
