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Is it possible to read the Single bit in part program?

Created by: Y.DHINAKARAN at: 8/2/2010 7:13 AM (2 Replies)

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8/2/2010 7:13 AM	Rate (0)
Y.DHINAKARAN Posts: 43 Rating: (2)	Hi, It is possible to read the Single bit in part program For Eg: In my PLC hardware configuration i used starting input isi32 but i need to read the input i32.1in the part program. Pleaseadvice...... Y.Dhinakaran. splitted from READING PLC I/O'S IN PART PROGRAM.
Y.DHINAKARAN Posts: 43 Rating: (2)	Last edited by: O_Moderator at: 8/2/2010 12:38 PM new subject after splitting
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8/2/2010 8:41 AM	Rate (0)
Pee El Sea Gold Member Joined: 1/19/2008 Last visit: 10/2/2024 Posts: 992 Rating: (64)	Hi, Thre straight answer is no. I have never really understood why it has never been implemented. The easiest route to read I/O is to map it to the fast I/O in DB10 which you can read in the part program. This solution requires modifiying the plc program. If you cannot change the plc program you can wire physical inputs into connecter X121. 4 are available and these can be read in the part prgram. Pee

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8/2/2010 8:10 PM	Rate (0)
MBA Gold Member Joined: 3/19/2006 Last visit: 4/29/2024 Posts: 594 Rating: (78)	Y.DHINAKARAN Hi, It is possible to read the Single bit in part program For Eg: In my PLC hardware configuration i used starting input isi32 but i need to read the input i32.1in the part program. Pleaseadvice...... Y.Dhinakaran. splitted from READING PLC I/O'S IN PART PROGRAM. Read the Byte EB32 and decode Input E32.1 DEF INT PLC_INPUT1 ='B00000010' ; EXX.1 DEF BOOL E32_1 E32_1 = ($A_PBB_IN[0] B_AND PLC_INPUT1) or IF ($A_PBB_IN[0] B_AND PLC_INPUT1) == 1 E32_1=True ELSE E32_1=false ENDIF

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