GSV in 5000

EAT_A_PIG_PLEASE

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• Nov 6, 2013

• #1

Can someone help me with a GSV command please? I am trying to use it for a clock. My class name is WallClockTime. I have no instance name. Attribute Name is DateTime, My Dest is DINT7, a DINT with a length of 7. I am getting an error that says my DEST is missing reference to array element. I am also wanting to know if I can use an EQU with Source A being DateTime[1] and will that reference the month? I would then set Source B equal to 11 for November. I am just trying to grasp this GSV/SSV command. Please help!

 

bernie_carlton

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• Nov 6, 2013

• #2

I am getting an error that says my DEST is missing reference to array element.

Click to expand...

Reference the destination as DateTime[0] - the first element.

I am also wanting to know if I can use an EQU with Source A being DateTime[1] and will that reference the month? I would then set Source B equal to 11 for November.

Click to expand...

Yes

 

EAT_A_PIG_PLEASE

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• Nov 6, 2013

• #3

That worked. Thanks. Now what is the function of the SSV?

 

bernie_carlton

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• Nov 6, 2013

• #4

Opposite the GSV (Get System Variable). It Sets a System Variable.

 

EAT_A_PIG_PLEASE

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• #5

So would I use it to clear a fault then? Is that a good example?

 

EAT_A_PIG_PLEASE

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• #6

Also if I am using FaultCode as Attribute Name, what is the importance of the Class Name? I got an error for class name too.

 

EAT_A_PIG_PLEASE

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• #7

I just found what the class names are. I am not sure how you know the length needed for each one. How long is the DINT for MajorFaultBits for example?

 

EAT_A_PIG_PLEASE

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• #8

I think it is 11 for that one. I found some literature online.

 

bernie_carlton

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• Nov 6, 2013

• #9

A DINT is a DINT - it's always 32 bits long.

Only bits up to 11 have particular meaning but there are still 32 of them existing.

 

EAT_A_PIG_PLEASE

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• Nov 6, 2013

• #10

I understand there are 32 bits in a DINT, but don't you need a DINT of length 7 for TimeDate?

 

bernie_carlton

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• Nov 6, 2013

• #11

The 'DINT of length 7' is an array of 7 DINTS in a row with indexes 0 - 6. You were referencing the second one - DateTime[1] - when you wanted to look at the month.

The DINT for MajorFaultBits is a single DINT. The individual bit positions - MajorFaultBits.0 through MajorFaultBits.31 - can be referenced. Only those shown in the help file have particular meaning.

 

Last edited: Nov 6, 2013

EAT_A_PIG_PLEASE

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• Nov 6, 2013

• #12

The literature does say it is a single DINT for that. I will look through it some more. I have Studio 5000 and am unable to get the Emulator to work. Do you have any suggestions for that?