No communication with s7 226 cpu

[bogdan_cioric]

Hello,

I have a genuine PPI cable (USB) serial number 6ES7 901-3DB30-0XA0 and i cannot communicate with a 226 cpu. I selected the cpu from list but no results. I choose "Read PLC" i receive the message "PLC time out".
I use a MicroWIN 3.2 version, USB port, PPI cable
Please tell me what's wrong.
thanks for your time.

bogdan

 

[sie625]

Go to 'Set the PG/PC Interface' and under Properties, then the Local Connection Tab make sure USB is selected and not COM1. Also make sure that the baud rate is set correctly.

 

[bogdan_cioric]

Thanks for your advice but i haven't this option. I have only com1 and com3 not usb port.My version of MicroWin is 3.1.

 

[bogdan_cioric]

Hi sie625,
I think i need a com to usb adaptor to use this cable. i'm not sure and i'm waiting an advice. thanks.

 

[Cryogen]

You may have to upgrade your software.. download all the service packs. These are available for free downloads on the siemens website..

You can find them here

 

[bogdan_cioric]

i will try to do this job.
keep in touch. i come back with the results.
thanks

 

[Cryogen]

Good.. the same thing happened to me but it worked later after I updated the software.. So let me know..

 

[sie625]

i would definately recommend upgrading the software. if you have COM1 available why dont you just get the PPI cable that plugs into a com port, i believe the part number is 6ES7-901-3CB30-0XA0

 

[bogdan_cioric]

hy cryogen,
first of all thanks for your advice. i saw the siemens web page and i think is not possible to update microwin for 3.1 version to 4.0 version. i will try to do this but i'm not sure this will be possible.
thanks for your time.
i will inform you.
plase tell me what upgrade you made (from x.x to y.y)
i'm waiting your answer.

 

[bogdan_cioric]

you right sie625 but is to late, i already purchased the cable.is no problem, i will try to update my version because is the best way.

 

[Cryogen]

The last upgrade I did was from 4.0.105 to 4.0.2 (service pack 2). But I have done all the other upgrades too from Microwin 3.2 You probably have to do this upgrade first:

STEP 7-Micro/WIN V3.2 Service Pack 1 Update (V3.2.x to V3.2.1.34)

What exact version do you have?

 

[bogdan_cioric]

my actual version is 3.1.1.6

 

[Cryogen]

Can you try this first then?

Service Pack 2 (V3.x to V3.1.2) for STEP 7-Micro/WIN 32

 

[bogdan_cioric]

thanks for your link to siemens web page. iwill call to our siemens office tommorow (the time in romania is 18:30) and i will buy the new version 4.x.
thanks again and see you tommorow.

 

[Damir]

The USB PC/PPI cable is supported at least from Microwin V3.2 + SP4.
There is no free update from V3.1 to V3.2/V4.x.

You need a Microwin upgrade (about half price of full version).
6ES7 810-2CC03-0YX3