10-02-2009, 03:20 AM
We have found the problem with the Autostar units
There is a DIP switch next to the TD/RD connectors which sets Rs232 or RS485 interface
For RS485 1,2,3 should be ON and 4,5,6,7,8 should be OFF. There is small marking on the DIP switch indicating this
Hence for the units which you have to reverse the connections, they are actually set to RS232. This may work but there is distance limitation which may have an effect, so you should change the switch settings to RS485 and reverse your KA/KB connections to the original
This was not known to us before. We will amend the documentation accordingly
There is a DIP switch next to the TD/RD connectors which sets Rs232 or RS485 interface
For RS485 1,2,3 should be ON and 4,5,6,7,8 should be OFF. There is small marking on the DIP switch indicating this
Hence for the units which you have to reverse the connections, they are actually set to RS232. This may work but there is distance limitation which may have an effect, so you should change the switch settings to RS485 and reverse your KA/KB connections to the original
This was not known to us before. We will amend the documentation accordingly