Siemens S7 to codesys

[RREGMI]

Hello all,

First Time in PLCtalk.net...
Looks like i am at the right place.
New to PLC world. Need some help to figure this out.
I want to convert this step7 program to codesys but got stucked on this prg.
How do i achieve this?
In siemens, they have accumulator, does codesys have one too?
How is BEU, structured in codesys?
Is there a similar type of BEU instruction in codesys?

Desp. need your Help Guys!


Thanks

Y'all have a great weekend!

 

[L D[AR2P#0.0]]

BEU is block end unconditonal so any instructions after the BEU can be deleted (provided they are not jumped to - they are not in your example).

 

[L D[AR2P#0.0]]

Quick code convert:

pole:=Stepper_position MOD 4;
Q20.0:=(pole == 0);
Q20.1:=(pole == 1);
Q20.2:=(pole == 2);
Q20.3:=(pole == 3);

 

[RREGMI]

Quick code convert:

pole:=Stepper_position MOD 4;
Q20.0:=(pole == 0);
Q20.1:=(pole == 1);
Q20.2:=(pole == 2);
Q20.3:=(pole == 3);

What is accumulator in ABB AC500 PLC's as compared to simens ACCU-1, ACCU-2?

 

[RREGMI]

Need help on Conversion!

I am new to siemens so does not no whole lot of STL language.
Needed to convert this program from siemens to Codesys but got stuck. Could anyone please help me achieve this. I would be really grateful.

Thanks

 

[L D[AR2P#0.0]]

I've already posted the converted program. Replace Q20.0,1,2,3 with the output variables you have assigned in your codesys project.

 

[shooter]

be sure the stepper_position is an integer or better
and be aware the maximum speed is about 500 steps/ second
and no current control.
better to use a special stepper card for this.

 

[RREGMI]

I've already posted the converted program. Replace Q20.0,1,2,3 with the output variables you have assigned in your codesys project.

hi LD,

Thanks for your support. I really appreciate that!


I understand the middle portion.
How do i convert the top part and bottom part in codesys:

here is the code for top part:

L #Stpr_Start_Qbyte_Adress
SLW 3
L #Stpr_Start_Qbit_Address
+I
LAR1 // put the value QByte + QBit into adress register 1 (p#QByte.QBit)


here is the code for bottom part:
&

A T 21
= Q [AR1,P#0.0] // turns on output whose address is in AR1

I know it is easy for you to understand but for me it's a rocky mountains!

I hope you will understand it!

Thanks

 

[L D[AR2P#0.0]]

The code you are referring to is not used. The code I posted is the complete functionality.

 

[RREGMI]

The code you are referring to is not used. The code I posted is the complete functionality.

Thanks LD,

I really appreciate it!

 

[Noli2]

Quick code convert:

pole:=Stepper_position MOD 4;
Q20.0:=(pole == 0);
Q20.1:=(pole == 1);
Q20.2:=(pole == 2);
Q20.3:=(pole == 3);

pole:=Stepper_position MOD 4;
Q20.0:=(pole = 0);
Q20.1:=(pole = 1);
Q20.2:=(pole = 2);
Q20.3:=(pole = 3);