Re: CM11A does not get ready for X10-trasmission with Programmable Logic Controller

["dca" <d-anton@xxxxxxxxx>]

Dave Houston ,
You are right again.
It works just fine with a delay of  2 ms only.
I thank you again.
dca

? "Dave Houston" <nobody@xxxxxxxxxxxx> ?????? ??? ??????
news:4380b0c9.49696201@xxxxxxxxxxxxxxxx
> You can probably reduce the delay to 2-3ms. I suggested 25 because I knew
> that would 'fix' this but I also knew it was much more than you probably
> need.
>
> "dca" <d-anton@xxxxxxxxx> wrote:
>
>>Dave Houston ,
>>
>>You are absolutely right!
>>A delay of 25ms solved the problem.
>>
>>Lots of THANKS.
>>Gratefully
>>dca
>>
>>? "Dave Houston" <nobody@xxxxxxxxxxxx> ?????? ??? ??????
>>news:437fcd89.69181516@xxxxxxxxxxxxxxxx
>>> Your PLC may be responding too quickly. Those who have controlled the
>>> CM11A
>>> with microcontrollers have found they had to insert a delay between
>>> receiving the checksum and sending the 00h. Try 25ms.
>>>
>>> "dca" <d-anton@xxxxxxxxx> wrote:
>>>
>>>>I am trying to control an X10 installation from a Programmable logic
>>>>controller (PLC S7-200) via a CM11A.
>>>>For test purposes there are only A2 (AM12) and A5(LM15) installed.
>>>>
>>>>The following work without any problem:
>>>>-Get status 8BHEX
>>>>-Write time 9BHEX
>>>>-X10 reception (5AHEX from CM11A) and subsequent response C3HEX to
>>>>receive
>>>>serial data buffer
>>>>(Note: I occcasionaly used TM13 (as A1) and a remote control unit to
>>>>trigger
>>>>the serial ring on CM11A)
>>>>
>>>>
>>>>However when  I try X10 transmission the following happens:
>>>>
>>>>PLC                                      CM11A
>>>>
>>>>046eHEX
>>>>//address A2
>>>>                                            72HEX
>>>>//checksum ok
>>>>00HEX
>>>>//  acknowledge
>>>>                                             00HEX
>>>>// not OK, ought to be the expected 55HEX
>>>>
>>>>
>>>>if one continues with the function
>>>>0662HEX
>>>>//function A On
>>>>                                            68HEX
>>>>//checksum ok
>>>>00HEX
>>>>//  acknowledge
>>>>                                             00HEX
>>>>// not OK, ought to be the expected 55HEX
>>>>
>>>>and A2 remains Off.
>>>>
>>>>Just in case, I changed the CM11A with a brand new one. To no avail.
>>>>
>>>>Both the CM11As work fine with the ActiveHome AND HomeSeer software on
>>>>my
>>>>PC.
>>>>
>>>>I would be grateful for any suggestions.
>>>>Many thanks in advance
>>>>
>>>>dca
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>
>