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Showing results for tags 'ctbl'.
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Hi, I have found this forum extremely helpful in the past. I greatly appreciate in advance any help/direction. I am having trouble simply placing/invoking a PRV instruction in CX-Programmer. The program seems to not recognize really any of the High Speed Counter instructions. (working with a CT021. I/O table correct, CJ2H CPU67 PLC rack powered on with all green lights.) Please see attached screenshots for what I mean... the PRV, PRV2, CTBL, SPED, etc instructions just show up red (like they are not understood/recognized PLC instructions/functions) when I try to place in the ladder. There must be something simple that I am not considering. Thanks again for any help. Michael
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Hi, I have some code and the PLC scan is quite long 55ms. I have also defined CTBL function with HSC 0 and when the value is reached program (Interrupt TASK 04) is executed - just SET output 100.01 (electrovalve for cutting) . My question is if when I have so long PLC scan, timing for OUTPUT 100.01 is always the same - immediately when Interrupt TASK 04 is executed or is ON after scan is done and then cutting moment is different. If timing can be different how to force OUTPUT 100.01 from Interrupt TASK 04 not after PLC scan is done
