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How to use a CONST in SCL ????

5/3/2012 1:55 PM	Rate (0)
Lpmspa Advanced Member Joined: 2/8/2007 Last visit: 8/27/2025 Posts: 12 Rating: (10)	Hi, i want use a CONST in SCL but ???? does not work? my code: CONST C1 := 123; C2 := 321; END_CONST; in a code: CASE DataType OF C1: // ; 8 : // Istruzioni_8 ; ELSE: // Istruzioni_ELSE STRING_PARSE := 31; RETURN; END_CASE; any idea? about how to make it work????
	Last edited by: RangO at: 5/3/2012 1:57 PM Last edited by: RangO at: 5/3/2012 1:55 PM
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5/3/2012 3:42 PM	Rate (0)
Aret Posts: 2348 Rating: (265)	Such code is compiled Initially i took it from Insert->Control structure->CASE FUNCTION FC1 : void VAR_TEMP qwe: INT; END_VAR CONST abc :=8; END_CONST; CASE qwe OF 0..3 : // Statements_0..3 ; abc : // Statements_8 ; ELSE: // Statements_ELSE ; END_CASE; END_FUNCTION
Aret Posts: 2348 Rating: (265)
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5/3/2012 4:08 PM	Rate (0)
smiffy Platinum Expert Joined: 1/17/2007 Last visit: 7/10/2025 Posts: 1561 Rating: (540)	Interesting. I have found out how to fix it, but I cannot explain what is happening. Change the 'C' in your 'Cn' to another latter (e.g. 'A' and it works A1, A2 in place of C1, C2). I assume that C is a reserved word in SCL, but I can't find any reference to it. I might be the shorthand format for the CHAR type.
	Last edited by: smiffy at: 5/3/2012 4:10 PM Last edited by: smiffy at: 5/3/2012 4:09 PM Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. So far, the universe is winning...
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5/3/2012 4:16 PM	Rate (0)
Aret Posts: 2348 Rating: (265)	Maybe C1 is resolved as counter1 memory cell? But then it shouldn't allow using it as const name...
Aret Posts: 2348 Rating: (265)
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This contribution was helpful to 1 thankful Users smiffy

5/3/2012 7:05 PM	Rate (0)
Marciano Bronze Member Joined: 4/30/2007 Last visit: 6/17/2025 Posts: 231 Rating: (23)	For obvious reason, C or C1 stands for Counter… English mnemonics – for you guys must be Z or Z1 …

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This contribution was helpful to 1 thankful Users smiffy

5/3/2012 11:16 PM	Rate (0)
smiffy Platinum Expert Joined: 1/17/2007 Last visit: 7/10/2025 Posts: 1561 Rating: (540)	Ah yes, counters. You are right. I forgot about those. Don't use them very often myself. The SCL compiler could have been a little more helpful with its error message though. I wasn't exactly clear why the compile had failed.
	Programming today is the race between software engineers building bigger and better idiot proof programs, and the universe producing bigger and better idiots. So far, the universe is winning...
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