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No. 1515 Re: Re: Re: CSE-H55N2 Client - server configuration BACnet MS/TP 2017-09-01

Hello Ferry,

Thank you for detail information.

We checked your configuration on both devices and there is nothing wrong with these configurations. There are some possible reasons which make your system work unstably.
1. IP address is conflicted with IP of another device.
2. Power source us unstable and it could make CSE-H55N2 reset and then the connection will be lost and re-established.
3. Ethernet cable is unstable, it could make the connection lost

Could you please check these above reasons?

If the problem is not solved, please feel free to contact us!

Best regards,


> ferry wrote:
> ------------------------------------
>
> Hello again,
>
> In the attachment you find the 2 configuration exports.
>
> When i look in the state in EZ manager, normally the state is "connection established"
>
> When my BACnet device is offline in the controller, the state is "connection lost" (or something). a few minutes later the connection is back. and the communication is back.
>
> > Sollae Systems wrote:
> > ------------------------------------
> > Hello Ferry,
> >
> > Thank you for using our products.
> >
> > In order to find out the reason, we would like to ask some additional information.
> >
> > 1. Could you please describe more detail about your network topology (for example, PC <-> internet <-> CSE-H55N2 <-> BACnet MS/TP device ....)?
> > 2. Could you please tell us how you detect that connection is lost ?
> > 3. Could you please send us the configuration files of both CSE-H55N2 device (on ezManager software, go to "Advanced Menu" -> Export Variables -> save file and send us)
> >
> > Thank you,
> >
> > Best regards,
> >
> >
> > > Ferry wrote:
> > > ------------------------------------
> > > Hi,
> > >
> > > On a site i have 1 BACnet MS/TP device, running over a server-client configuration with 2 CSE-H55N2's.
> > >
> > > ~ 4-6 times a day the conection between the two devices get lost.
> > > On the same plant i have the same configuration with MODbus RTU, works fine.
> > >
> > > The only different is the protocol and the baudrate.
> > > Modbus is running on 9600 with parity even, Bacnet is running on 19K2 without parity.
> > >
> > > Do i need to do a special setting in the H55N2's?

Writer Sollae Systems Company