Use of LDT HSI-88 with Viessmann 5233

[alainv]

I have a problem when using the HSI interface with two Viessmann 5233 feedback module. In this case when starting Digipet, the software hangs after initialisation of the HSI interface. The message in the pop-up window says that the interface is initialsed with 13 modules. When the software hangs, I have to use the task manager of Windows to kill the WDIGIPET process in order to stop it. During the initialisation of the software, I can see the read LED flickering on the HSI interface, but it light off after a while. When I disconnect the two Viessmann module from the S88 bus, I can start WIndigipet without any problem.
To connect the HSI interface, I'm using a USB to RS232 cable as I'm running out of serial ports. I've also a Lenz LI101 interface connected using a USB to RS232 cable, and the connection with Windigipet is running fine.
I'm running WindowsXP SP1 with 256 Mbytes of RAM, the RS232 port is 9600Bauds, 8 Bits, 1 Stop, No parity and Hardware handcheck. I'm using the french Windigipet 8.1 demo software, as I'm planning to buy the real software once I can see the demo working.

Any advices are welcome...

Alain  

[Dietloff]

Hi Alain,

hard to say from the distance, but please try the following.
As soon as you encounter problems during the initial phase of the LDT click on the COM-button of the relevant COM-port in the upper menu bar. This forces LDT to initialize again.

It is mandatory that you type in the correct amount of S88 into the WDP system-settings. If you still encounter problems try to deactivate the COM-port of WDP (COM=0) and restart again. When then anything is running fine, it could also be a problem of your USB-serial converter - but as mentioned before: It´s hard to say from the distance.

Regards

Rüdiger
 

[Gerd Boll]

Hy Alain
The HSI-Manual said, you must deactivate the FIFO Buffer at this com-Port !
The flickering LED shows aktivity at the com-Port.
Without any aktivity the LED light on , but your LED light off ?
Did you ask Mr. Litfinski for this Problem?