SMA Com Gateway, Руководство по установке

Страница: 27 / 36

8 Troubleshooting SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 27
Problem Cause and corrective measures
Not all RS485 devices are
being detected. Not all RS485 devices are in operation.
Corrective measures:
• Ensure that all RS485 devices are in operation.
Then perform a renewed RS485 device detection. To do this,
press and hold the function button on the SMA Com Gateway
using a sharp object (e.g. paperclip) for between 1 and 5
seconds.
There are too many RS485 devices in the system.
Corrective measures:
• Ensure that there are no more than 50 RS485 devices in the
system.
Then perform a renewed RS485 device detection. To do this,
press and hold the function button on the SMA Com Gateway
using a sharp object (e.g. paperclip) for between 1 and 5
seconds.
or
• Ensure that the value set in the SMA Com Gateway for the
number of RS485 devices to be detected is not too low.
Then perform a renewed RS485 device detection. To do this,
press and hold the function button on the SMA Com Gateway
using a sharp object (e.g. paperclip) for between 1 and 5
seconds.
The baud rate of one or more RS485 devices has been configured
incorrectly.
Corrective measures:
• Ensure that all baud rates in the system are in accordance with
the SMA Com Gateway.
Then perform a renewed RS485 device detection. To do this,
press and hold the function button on the SMA Com Gateway
using a sharp object (e.g. paperclip) for between 1 and 5
seconds.