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6.5 Event recording
This device supports event recording function. Reading the information of record
and setting relevant parameters only can be realized through communication.
Please refer to communication list for detailed instruction.
SOE recording include 32 pieces of events which contain activation time of digital
input and relay output. The resolution is 1ms.
Off-limit alarm recording includes 10 pieces each of voltage, current and active
power which are judged every 1 second. When any phase voltage and phase
current or total active power is higher or lower than a threshold value, the relevant
event will be recorded. Alarm value can be changed.
7. Common problems and troubleshooting
7.1 About communication
1) The meter does not send data back
First make sure the communication setting information of the meter such as
subordinate machine address, baud rate and check mode corresponds to the
requirements of host computer. If several meters on spot do not send data back,
please check whether the communication bus on spot is connected correctly and
whether RS485 converter works normally.
If there is only one meter or a few meters communicate abnormally, related
communication bus is also needed to be checked. You may check whether there is
an error in the host computer by exchanging the subordinate machine addresses of
normal meter and abnormal meter. Besides you may check whether there is a fault
in the meter by exchanging the installation positions of normal and abnormal
meters.
2
）
the data sent back by the meter is incorrect
Communication data which is opened to users includes primary grid “float” type
data and secondary grid “int/long” type data. Please read the instruction for data
storage address and format in communication address table carefully, and make
sure to transmit data according to relative format.
