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  •  » No setting and communication T7410 sensor with TSensor in Modbus RS485

#1 07-03-2013 09:52:12

Benito
Member
Registered: 07-03-2013
Posts: 4

No setting and communication T7410 sensor with TSensor in Modbus RS485

Hello !

I'am trying to set a T7410 sensor with TSensor but when I click on "Connect", I have an error message "Sensor connection failed".
I can set the device with the Windows hyperterminal without problem.

Have you got a solution ?

Material:

T7410
connection between PC and sensor: converter USB -> dual RS232 jack, then converter RS232 connector -> RS485 connector, then RS485 connector ->  T7410 sensor
Windows XP v5.1

TSensor configuration data: Serial RS485, Com Port: COM1, Address: 1, Baudrate: 9600.

Best Regards,

Benito.

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#2 08-03-2013 11:48:07

RadimM
Administrator
Registered: 30-05-2007
Posts: 17

Re: No setting and communication T7410 sensor with TSensor in Modbus RS485

Hello, it is hard to tell where the problem might be. Could you answer these questions, please?

Which communication protocol is configured in your T7410 sensor? Is it Modbus, Advantech Adam, Amit Arion or HWG Poseidon?

What types of converters have you got and how have you adjusted them? It means: switching control, handshake, parity mode, data bits, stop bits etc.? In your case, communication in TSensor software will be set like this: COM=1, Baudrate=9600, Address=1, no parity, 8 data bits, 1 stop bit.

How is your T7410 sensor powered? Is it powered from the interface (port) directly?  Or from the external power supply? Sometimes, powering from the interface (port) may cause problems, the voltage signal may be too weak. In this case, using the external power supply is much better.

Best regards,

Radim

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#3 08-03-2013 14:48:14

Benito
Member
Registered: 07-03-2013
Posts: 4

Re: No setting and communication T7410 sensor with TSensor in Modbus RS485

Hello Radim !

I provide next informations:

Communication protocol in Modbus.
Communication settings: COM=1, baudrate= 9600, address= 1, no parity, 8 data bits, 1 stop bit.

Tsensor is powered by battery (9V) or external power supply (12V), but without improving.

Best Regards,

Benito.

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#4 11-03-2013 13:50:28

MichalV
Administrator
Registered: 18-06-2007
Posts: 132

Re: No setting and communication T7410 sensor with TSensor in Modbus RS485

Hello Benito,

did you use the latest TSensor program version (3.0.4.0)?

Mike

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#5 11-03-2013 14:00:30

Benito
Member
Registered: 07-03-2013
Posts: 4

Re: No setting and communication T7410 sensor with TSensor in Modbus RS485

Hello !

Yes, I use Tsensor v.3.0.4.0

Benito.

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#6 12-03-2013 15:09:26

RadimM
Administrator
Registered: 30-05-2007
Posts: 17

Re: No setting and communication T7410 sensor with TSensor in Modbus RS485

Hello Benito,

You said you had tried to set the T7410 sensor with the Windows hyperterminal. Please try to press the key '0' when your Windows hyperterminal displays main menu. Some protocol info will be displayed. It contains the real adjustment for communication with your T7410 sensor. Unit address and baud rate (and COM port number, of course) must match the values that you enter into the TSensor program.

If it still does not work, it may be (and most probably is) some problem with the converter. The TSensor program may not support all the converters (which may be a problem with the handshake, DTR&RTS signals, etc.). What type of converter(s) do you use? Could you try this with another type of converter? Certainly, it would be best to run it with the converter which we offer for these purposes.

Best regards,

Radim

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#7 18-03-2013 09:43:42

Benito
Member
Registered: 07-03-2013
Posts: 4

Re: No setting and communication T7410 sensor with TSensor in Modbus RS485

Hello !

Problem was resolved by a converter change. I use a simple RS232 -> RS485 adapatator. Now Tsensor program can communicate with the probe.

Best Regards,

Benito.

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