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Hello,

I have a VISONIC POWERMAX PRO and I am trying to do myself a cable in order to communicate with the software (between rs232 pc and powermax).

I would like to Know the pins fron the poermax pro panel:




After that I think I must connect with RS232 converter to TTl:





I think if I Know the pins in panel powermax, I could connect to pc.

Please, has someone experiencie on that? Do you think am I right?

someone know the pins from powermax pro?

Thanks

dont you also need a small module installed in the powermax to even be able to communicate with it? Like on the picture below..



// Erik (binkey.nl)

Thanks snelvuur,

I am trying to do myself this small module. This module is only for converter signal TTL --- RS232 (by RJ45).

With max232 I think I could the same but I need to Know the pins in the board:

+5v
GND
RX
TX

Thanks in advance

I see in other Topic:

Concerning the wiring-diagram, have a look at the MAX-232 datasheet. Looking at pictures of the PCB the circuit-board is a very standard TTL <--> RS-232 convertor.

Looking again at the PCB:

1: +5V
2: RX from PowerMax to external
3+4: TX/DTR from external to Powermax

All signals TTL level


Please could you confirm these pins in your small module with a multimeter?

Thanks

Tis is the part of your small module:






Thanks in advance if you could confirm the pins:

+5v
GND
RX
TX

i dont know that, perhaps bwired/chak knows..

// Erik (binkey.nl)