FC 105 scaling block

Egil-s · Feb 3, 2010

Hi.

I am going to use the FC105 to scale a pressure transmitter.

But when i put in the values in hi/low limit, it says "Constant format for data type INT does not fit the formal type REAL of the formal parameter HI_LIM"

That is when i put for example 200 as high limit.
But when i put in 2.000000e+002, its ok.

Why is this.

Oh, another problem.

When i type 1 or 0 in the BIPOLAR field, is says "Compiler information: type conflict."

L D[AR2P#0.0] · Feb 3, 2010

When a real number is required as a parameter, it must be entered in the format of a real number. No ifs or buts.

If using the ladder editor, you cannot enter a constant for a boolean parameter - use an M flag that is always true or false as required.

If using STL, you can enter True or False for a boolean but the editor generates code that either sets or resets a local boolean variable and passes the local variable to FC105

Highlight FC105 in your blocks folder then F1 will give you the in-built help.

Egil-s · Feb 3, 2010

Ok, but then i cant understand what i am going to do.

I attach a print screen, so you can see my problem easier.

L D[AR2P#0.0] · Feb 3, 2010

...

Cobonweb · Feb 3, 2010

You always need to pass the correct TYPE of variable/value.

If you click on the input, you can see which TYPE the compiler expects. For example, if you click on the lo_lim input of FC105, you will see, at the bottom of your screen, IN/REAL.

This means you have to pass the value in REAL format; IE: 1.0

Assigning a BOOl input, requires you to define a variabe of the TYPE BOOL, assign it (TRUE/FALSE) and then use it as input variable for FC105.

Press F1 and search for "DATA TYPES" for extra info.

Paul B · Feb 3, 2010

This is always my first rung of OB1.
Then you can use whichever you need for the Bipolar input on the FC105.

L D[AR2P#0.0] · Feb 3, 2010

... and your last rung should check that AlwaysOn and AlwaysOff are as expected. Say, due to a programming error AlwaysOn is inadvertently set to zero, you may have code executing relying on AlwaysOn to be just that, only to find that it isn't.

shooter · Feb 4, 2010

i always declare variables
like:
twohundred : REAL:=200;
or same hlimit: real:=200;
in my globals i have a list with these.
zeroint :INT:=0;
zeroreal :REAL:=0;
oneint
onereal
etc.

Einstein_86 · Nov 2, 2011

Scaling Function does not accept PIW input

You enter a PIW here to the integer input and it's accepted !
Whenever i enter it in my program (with the address it is stored in) , it's not accepted and it gives me the message " Data type of IN does not fit the symbol table entry of the actual side".
When I try to enter it by the symbol name (for example i called this input LC1), when i write LC1 it gives the same message

Can you help me in that ??

L D[AR2P#0.0] · Nov 2, 2011

What data type is your PIW in the symbol table? - it must be of type INT to pass to FC105

FC 105 scaling block

Egil-s

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L D[AR2P#0.0]

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Egil-s

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L D[AR2P#0.0]

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Cobonweb

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Paul B

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L D[AR2P#0.0]

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shooter

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Einstein_86

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L D[AR2P#0.0]

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