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SIMATIC S5 / STEP 5

Connection problem S5 with Lauer HMI

Thread Starter: Spud2408   Started: 8/27/2008 5:02 PM   Replies: 7

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  8/27/2008, 5:02 PM
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Hi
I have  problem. I have the old system with S5 115U CPU 943 (with 2 TTY) which is connected with HMI Lauer PCS090 on TTY2 and it is working perfect.
Now I`m making new same maschine whith same system, HMI Lauer which is connected with S5 115U CPU 943 B (with 1 TTY), I upload  the same program to  CPU and  to HMI, only difference is that HMI is now connected to TTY 1 (becouse this CPU has only 1 TTY) could this be a reason why  HMI is showing:                           -connection  error-
                                           -wrong DB-


What is the difference between CPU 943(with 2 TTY)  and 943B (with 1)?

Thanks
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  8/27/2008, 7:18 PM
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In the single serial interface, the interface port uses AS511 protocol for communication using TTY signals. If there is a second interface, the SI2 (second serial interface) of the CPU could be configured to communicate in different protocols such as point-to-point, ASCII, 3964R etc.
May be your HMI is using some protocol other than AS511.

Did you try connecting new HMI on the old CPU?

Jomy M Jose
Jacobs Engineering Group Inc.
111 Corning Rd., Suite 200
Cary, NC 27518, USA
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  8/27/2008, 7:25 PM
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Also check this manual if you need more info

http://support.automation.siemens.com/WW/view/en/1085937

Jomy M Jose
Jacobs Engineering Group Inc.
111 Corning Rd., Suite 200
Cary, NC 27518, USA
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  8/28/2008, 8:32 AM
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Hi JMJ,
  thanks for  answer.
Thing is that we have on stock only this CPU.
But normali S5 program that I put on this CPU with one SI is made for CPU with two SI and I think that  protocol for this HMI is also AS511.
I don t know what to do if problem is in CPU it is not a problem to buy a new.
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  8/28/2008, 11:19 AM
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Hello Spud2408,

Please check you S5 programm. Is it using FB51 (TDOP511) then it is AS511 protocol
or is it using FB53 (FAP protocol, only SI2 interface)?

Best regards,

Wizard
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  8/28/2008, 4:37 PM
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Hi Wizard,

                  it is using FB50, does this means anything?
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  8/28/2008, 6:28 PM
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As per my knowledge these are the blocks for TDOP communication for S5

 

ConnectionFB No.FB Name
AS511FB51TDOP:511
FAP to SI2FB53TDOP:FAP
FAP via CP521 SIFB52TDOP:521
FAP via CP523FB52TDOP:523
PROFIBUS-DPFB58TDOP:DP
SINEC L1FB56TDOP:L1
PROFIBUSFB55TDOP:L2
ParallelFB54TDOP:PAR

Now, I do not know what FB50 is, what is the FB name?

Jomy M Jose
Jacobs Engineering Group Inc.
111 Corning Rd., Suite 200
Cary, NC 27518, USA
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  8/28/2008, 6:48 PM
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I find at Lauer site that tey have comm manual for PCS with S5 but it is in German. I do not undestand much German, but it look like they have their own blocks for communication.

http://www.lauer-systeme.net/web/lauer_en.nsf/AllDocuments/56C0956211F4317AC1257380002FD9BD


http://ft.beijer.se/files/C12572A600329472/972EAF32BD285600C125740100547693/91SIE_D.PDF

May be someone who understands German can help.

Jomy M Jose
Jacobs Engineering Group Inc.
111 Corning Rd., Suite 200
Cary, NC 27518, USA
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