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SIMOCODE calculations in S7

Created by: big_muzzy at: 3/11/2011 5:15 PM (1 Replies)

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3/11/2011 5:15 PM	Rate (0)
big_muzzy Posts: 48 Rating: (0)	Hello! Can anyone advise on how to interprete the SIMOCODE manual and scaling ranges for ie data record 94. Max current Imax as WORD 0-65535 [1%/Ie]. Does it represent value in % or scaling is required? If yes then what it corespond to? Active Power P as DWORD 0..0xFFFFFFFF [1W]. Is it expressed in BCD code? FFFFFFFF is equal to 4294967296. I wish to convert it to DI, BCD_DI supports max +/-9999999. All advices are welcome. Thanks!
big_muzzy Posts: 48 Rating: (0)
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3/12/2011 1:22 AM	Rate (0)
fritz Diamond Member Joined: 10/7/2005 Last visit: 2/12/2025 Posts: 3036 Rating: (1060)	Hello big_muzzy Max current Imax is a simple Integer which gives you a % value of the rated current (see the "Set current ls1" setpoint value that you configured in "Overlaod/Unbalance/Stall"protection of the device configuration). If you want to convert it to a real current value you need to scale it, for example:: L #Max_Current_INT_%// Max currentvalue as INT in % of Set current ITD // Integer to Double integer DTR // DoubleInteger to real L #Rated_Current // Rated current *R L 1.000000e+002 /R T #Max_Current_REAL // Max currentvalue as REAL in Amps Active Power isa Double Integerin 1W resolution. Allall other DR94 related "DWORD" valuesare also simple Double Integers, all "WORD" values are Integers. I 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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