ARRAYS

[kothy 0]

Hello all, Here is the problem im facing in RSLogix 5000. I have two DINT arrays for example TAG1 type DINT[32] and TAG2 type DINT[32]. Is there away that I can compare these two arrays such that when the expression is true to turn on an output? Please help. Thanx in advance. Kothy.

[TConnolly 13]

Kothy, There are several technotes in the AB knowledgebase about doing FAL operations on the Logix-5000 PLCs. The FAL or FSC instruction should do what you want to do - but the application of the instructions is different from the PLC-5. See the Technotes.

[Guest Guest]

The following 2 rungs do it. Make the control length the of your arrays. FSCControl type = Control FSCTag1 type = DINT[32] FSCTag2 type = DINT[32] ArraysMatchBit type = Bool Rung 1 - XIO FSCControl.EN FSC FSCControl ? ? ALL FSCTag1[FSCControl.POS]<>FSCTag2[FSCControl.POS] Rung 2 - OTU FSCControl.IN XIO FSCControl.FD OTE ArraysMatchBit

[TimWilborne 108]

The following 2 rungs do it. Make the control length the of your arrays. FSCControl type = Control FSCTag1 type = DINT[32] FSCTag2 type = DINT[32] ArraysMatchBit type = Bool Rung 1 - XIO FSCControl.EN FSC FSCControl ? ? ALL FSCTag1[FSCControl.POS]<>FSCTag2[FSCControl.POS] Rung 2 - OTU FSCControl.IN XIO FSCControl.FD OTE ArraysMatchBit