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#1 |
Member
![]() ![]() Join Date: Mar 2009
Location: Ohio
Posts: 3
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GX Works3 and FX5U Ladder Sequencing
Hello,
I'm new to Mitsubishi, but not to PLC programming. I have converted a program we've used on AB, Siemens, and Automation Direct to the FX5U; and the attached rungs do not work. Basically, it just zeros a variable, then adds a number to it based a bit. It is as if it is only executing the MOV and not the ADD. I thought maybe it was just the monitoring was not displaying it correctly, but the routines that follow are not executing. I've also attached the same routine from Siemens, showing the ADD working. Is there something I need to do differently in GX Works3? Has anyone else seen this behavior? |
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#2 |
Member
![]() ![]() Join Date: Nov 2017
Location: cz
Posts: 48
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hello,
MOVE after SM400 will write 0 to D40 in every scan ADDP_U is PULSE controled instruction, so written value will stay in D40 only for one scan |
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#3 |
Member
![]() ![]() Join Date: Mar 2009
Location: Ohio
Posts: 3
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Thank You! I had selected the pulse version by mistake.
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#4 |
Member
![]() ![]() Join Date: Nov 2017
Location: cz
Posts: 48
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i gladly helped
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