S7 -> TIA (SCL code)

Hi,

I have something like this in S7 Classic in a FB200 that I wanna use in TIA Portal:


HW_ADDR is a integer input on the block. But, this does not work in TIA. Is this replacable with an easy peace of code ?

Thanks,
Kind regards,
Combo

Which type of CPU?

1513

thomas_v2 said:

which type of cpu?

Click to expand...

1513

Combo said:

1513

Click to expand...

There you need the PEEK-Function.

Like this:

Peek

Thanks Thomas,

Would these replacements work:

// INLEZEN SICK DATA + OP VOLGORDE BRENGEN
// #FIRST_BEAM := PIB[#HW_ADDR];
#FIRST_BEAM := PEEK(area := 16#1, dbNumber := 0, byteOffset := #HW_ADDR);
// #LAST_BEAM := PIB[#HW_ADDR + 1];
#LAST_BEAM := PEEK(area := 16#1, dbNumber := 0, byteOffset := #HW_ADDR + 1);
// #STATUS := PIB[#HW_ADDR + 2];
#STATUS := PEEK(area := 16#1, dbNumber := 0, byteOffset := #HW_ADDR + 2);

FOR #i := 1 TO 12 DO
// #BEAM_BYTES[#i] := PIB[#HW_ADDR + 2 + #i];
#BEAM_BYTES[#i] := PEEK(area := 16#1, dbNumber := 0, byteOffset := #HW_ADDR + 2 +#i);
END_FOR;





Thanks,
Kind regards,
Combo

Thomas_v2 said:

Like this:

Code:

#FIRST_BEAM := PEEK(area := 16#1, dbNumber := 0, byteOffset := #HW_ADDR);

Click to expand...

Combo said:

Would these replacements work:

Click to expand...

I'd say yes.

But with a S7-1500 you have another option: You can create a PLC datatype (UDT) with your structure, and assign a variable in the variable table to this UDT.

I'm using this for example for frequency inverters, where I create a UDT (STW : WORD; MAV : INT) and assign the UDT to the address in the input area. You can also split down the STW into the single bits.
Then my drive FB has a Parameter with this UDT, and another UDT parameter for output area. You have much better cross reference data with this access type.

Thomas_v2 said:

I'd say yes.

But with a S7-1500 you have another option: You can create a PLC datatype (UDT) with your structure, and assign a variable in the variable table to this UDT.

I'm using this for example for frequency inverters, where I create a UDT (STW : WORD; MAV : INT) and assign the UDT to the address in the input area. You can also split down the STW into the single bits.
Then my drive FB has a Parameter with this UDT, and another UDT parameter for output area. You have much better cross reference data with this access type.

Click to expand...

I'll 2nd this; it's one of my favorite hidden tricks with the new CPUs. It works great for things like drive telegrams.

You need one PLC Data Type for the inputs and one PLC data type for the Outputs, then you assign it to the first bit of the IO address. Example: if your drive was IW200-210, you'd declare a tag of type "Combo's Custom Drive Status UDT" at I200.0.

Hi

Great tip, thanks guys !!

mk42 said:

I'll 2nd this; it's one of my favorite hidden tricks with the new CPUs. It works great for things like drive telegrams.

You need one PLC Data Type for the inputs and one PLC data type for the Outputs, then you assign it to the first bit of the IO address. Example: if your drive was IW200-210, you'd declare a tag of type "Combo's Custom Drive Status UDT" at I200.0.

Click to expand...