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1st Time converting S5 program to S7

Created by: swing7 at: 7/29/2009 5:59 AM (6 Replies)

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7/29/2009 5:59 AM	Rate (0)
swing7 Posts: 15 Rating: (0)	Hi there, This is my 1st time converting and need some help, OPN DB 5 L #INPT L -1.000000e+000 R RND T #OUTT L #OUTT L #HI05 >I = M 1236.7 L #OUTT L #HI04 >I = M 1236.6 L #OUTT L #HI03 >I = M 1236.5 L #OUTT L #HI02 >I = M 1236.4 L #OUTT L #HI01 >I = M 1236.3 L #OUTT L #LO01 <I = M 1236.2 L #OUTT L #LO02 <I = M 1236.1 L #OUTT L #LO03 <I = M 1236.0 //L MY 1236; <-------may i know how can i resolve this?* T #BITS thiscame from an extended flag byte in the S5 code.
swing7 Posts: 15 Rating: (0)
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7/29/2009 8:09 AM	Rate (0)
sps-concept Gold Member Joined: 4/5/2006 Last visit: 8/13/2023 Posts: 642 Rating: (131)	Hello, is this code originally from a S5-FB? Input: #INPT #HI01 - #HI05 #LO01 - #LO03 Output: #OUTT #BITS The block compares the values and set the bits M1236.0 - M1236.7. Then the bits are transferred to #BITS. M1236.0 - M1236.7 = MY 1236. It's ok so. Better is when you don't use global variables inside. You also can set L0.0 - L0.7 and transfer LB0. Regards André Räppel --------------------------------------------------------------------------------- www.raeppel.de work faster withinnovative PLC-Tools

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7/29/2009 8:27 AM	Rate (0)
swing7 Posts: 15 Rating: (0)	Hi Andre, Yes they are originally from a FB in S5. The code that I have pasted are the converted version in S7. So what exactly is wrong with the "//L MY 1236;" ? It was originally ":L SY980" in S5. Then i tried to remove the slashes and semicolon but it gives a syntax error. Why is that? Regards, Alvin
swing7 Posts: 15 Rating: (0)
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7/29/2009 8:32 AM	Rate (1)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 12/3/2024 Posts: 3028 Rating: (1057)	Hello swing7 The "L MY 1236" is due to a(known and not yet corrected and possibly never will be)S5 converter bug. It should convert this to "L MB 1236" and from memory this bugonly occurs if you work withEnglish mnemonics settings and it only affects S5 Flagbyte addresses (FY or SY xxx). Can't remember for surethough and sinceit is an easy source file related "search & replace" fix, this "bug" never inconvenienced me too much. Anyway, hope this helps.
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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7/29/2009 8:41 AM	Rate (0)
sps-concept Gold Member Joined: 4/5/2006 Last visit: 8/13/2023 Posts: 642 Rating: (131)	Hello, M0.0 - M255.7 are converted to M0.0 - M255.7. S0.0 - S... are converted to M256.0 - ... SY980 + 256 -> MY1236. You must modify it to MB1236. Whenyou convert S5-programs -not insert from clipboard! Import the source file to source folder and compile. Regards André Räppel --------------------------------------------------------------------------------- www.raeppel.de work faster withinnovative PLC-Tools
	Last edited by: sps-concept at: 7/29/2009 8:52 AM
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7/29/2009 8:49 AM	Rate (0)
swing7 Posts: 15 Rating: (0)	Thanks guys! I will try out both methods....
swing7 Posts: 15 Rating: (0)
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8/6/2009 6:55 PM	Rate (1)
Bhaskaran Posts: 107 Rating: (13)	In the englsih version of S5 there is no instruction called as L MY xxx. It was always L FY xxx The letter F stands for Flags whereas M for Merker is a German word. The S flags were referrred by some programmers as Semaphores. In S5 the letter Y is used to address the byte of Inputs, Outputs and flags. For the data blocks it is DL or DR ( data left or data right ). because in S5 the DB's are organised word wise and not byte wise as in S7. There is a small correction - The input and output bytes are addressed as IB or QB but only flags or peripherie addresses are not used with B since PB is Program Block and FB is Function block in S5. That's why they are used as as PY and FY
Bhaskaran Posts: 107 Rating: (13)	Last edited by: Bhaskaran at: 8/9/2009 8:00 AM
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