Siemens S5 Help Needed

beethoven_ii · Feb 10, 2012

Hello guys,

I'm conversant with Step 7 but a client wants to log cycle times on a machine which is controlled by an S5 plc. I have attached a screenshot of what I want to do in Step 7 and wonder if someone could give me some help on how to write the same thing in Step 5.

Any help would be greatly appreciated.

Regards,

Barry

L D[AR2P#0.0] · Feb 10, 2012

Untested conversion:

beethoven_ii · Feb 10, 2012

Thanks for the reply. I'm just trying to get my head around it and if I have any questions I'll post again.

beethoven_ii · Feb 10, 2012

Looks good to me. I've forwarded the screenshot to the client and asked them to give it a try.

Thanks again for your help.

L D[AR2P#0.0] · Feb 10, 2012

Here's the Step 7 code produced by the S5/S7 convertor:

Code:

FUNCTION FC 1 : VOID
  NAME: BERT
  BEGIN
  NETWORK
       AN  T 120;
       L   S5TIME#1s;
       SD  T 120;
       //;
       A   T 120;
       AN  I 5.2;
       JC  M001;
       JU  M002;
  M001:OPN DB 11;
       L   DBW 2;
       L   1;
       +I;
       T   DBW 2;
  M002:NOP 0;
       A   I 5.2;
       AN  M 10.0;
       JC  M003;
       JU  M004;
  M003:OPN DB 11;
       L   DBW 2;
       T   DBW 0;
  M004:NOP 0;
       AN  I 5.2;
       AN  M 10.1;
       JC  M005;
       JU  M006;
  M005:L   0;
       OPN DB 11;
       T   DBW 2;
  M006:A   I 5.2;
       =   M 10.0;
       =   M 10.1;
  
  
END_FUNCTION

beethoven_ii · Feb 10, 2012

Thanks again.
Does the S5 support marker bits in the M format?
There are none in the rest of the code.

moggie · Feb 10, 2012

beethoven_ii said:
Thanks again.
Does the S5 support marker bits in the M format?
There are none in the rest of the code.

Markers are addressed with F not M in S5
ie: F10.0, FY10, FW10
Also depending on the CPU type being used there may be S markers available.

jvdcande · Feb 10, 2012

Marker bits are addressed with F bits in the English version of Step5 and with M in the German version. Normally you can switch languages without problem if the different languages are installed.

Kind regards,

beethoven_ii · Feb 12, 2012

Could I ask one further question about the solution you posted please. In my sample S7 code I used M10.0 & M10.1 as oneshot pulses. In your solution it say AN F 10.0 Will this act as a oneshot or just an ordinary marker bit?

L D[AR2P#0.0] · Feb 12, 2012

A one shot due to the processing at label M006

beethoven_ii · Feb 12, 2012

Thanks, I see it now but I think F10.0 should be true when I5.2 is high and F10.1 should be true when it is low. To do this I presume I'd have to delete the line = F10.1; and add a JU M007 and put M007:AN I5.2 = F 10.1?

L D[AR2P#0.0] · Feb 12, 2012

Step7 code now tested in PLCSIM, code modified as follows:
Note use of M10.2

Code:

      AN    T    120
      L     S5T#1S
      SD    T    120
      =     M     10.2
//;
      A     M     10.2
      AN    I      5.2
      JC    M001
      JU    M002
M001: OPN   DB    11
      L     DBW    2
      L     1
      +I    
      T     DBW    2
M002: NOP   0
      A     I      5.2
      AN    M     10.0
      JC    M003
      JU    M004
M003: OPN   DB    11
      L     DBW    2
      T     DBW    0
M004: NOP   0
      AN    I      5.2
      AN    M     10.1
      JC    M005
      JU    M006
M005: L     0
      OPN   DB    11
      T     DBW    2
M006: A     I      5.2
      =     M     10.0
      AN    I      5.2
      =     M     10.1

Siemens S5 Help Needed

beethoven_ii

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L D[AR2P#0.0]

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beethoven_ii

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moggie

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