Steve Bailey Lifetime Supporting Member + Moderator Join Date Apr 2002 Location The boondocks of Western Massachusetts USA Posts 8,533 Aug 24, 2010 #16 You need words for data and bits for boolean instructions. Both types can coexist in the same program.
You need words for data and bits for boolean instructions. Both types can coexist in the same program.
lonegator Member OP L Join Date May 2008 Location Missouri Posts 15 Aug 24, 2010 #17 I understand that. For the DI and DO, I'm using bits. But for the AI and AO, I need to use words. I just don't understand why I'm receiving an error when pointing to a word with an integer data file.
I understand that. For the DI and DO, I'm using bits. But for the AI and AO, I need to use words. I just don't understand why I'm receiving an error when pointing to a word with an integer data file.
sthompson Lifetime Supporting Member + Moderator Join Date Jan 2007 Location Vernon, BC Posts 1,851 Aug 24, 2010 #18 lonegator said: I need words though for the data I'm trying to transfer/display. Click to expand... The example you gave in your first post can only deal with Addresses specified to the Bit level. i.e. N30:0/1. This can only represent 0 or 1. You need to use Instructions that deal with Words. Like this; Stu....
lonegator said: I need words though for the data I'm trying to transfer/display. Click to expand... The example you gave in your first post can only deal with Addresses specified to the Bit level. i.e. N30:0/1. This can only represent 0 or 1. You need to use Instructions that deal with Words. Like this; Stu....
lonegator Member OP L Join Date May 2008 Location Missouri Posts 15 Aug 24, 2010 #19 Ah...there's my answer. Thank you!
sthompson Lifetime Supporting Member + Moderator Join Date Jan 2007 Location Vernon, BC Posts 1,851 Aug 24, 2010 #20 Go to the Allen Bradley Literature page. http://literature.rockwellautomation.com/idc/groups/public/documents/webassets/browse_category.hcst Search for; The SLC500 Addressing Reference Manual - 5000-6.4.23 The Instruction Reference Manual - 1747-RM001G-EN-P The User Manual - 1747-UM011G-EN-P You need to do some quick studying on SLC500 Addressing and Instructions. Stu....
Go to the Allen Bradley Literature page. http://literature.rockwellautomation.com/idc/groups/public/documents/webassets/browse_category.hcst Search for; The SLC500 Addressing Reference Manual - 5000-6.4.23 The Instruction Reference Manual - 1747-RM001G-EN-P The User Manual - 1747-UM011G-EN-P You need to do some quick studying on SLC500 Addressing and Instructions. Stu....