GX Developer to prog Fx1N

[tmechanic 0]

I have to convert an old Omron program to a Mitsu FX1N using GX Developer, I'm having trouble finding timers, or will I need to build them out of counters like the original Omron program did. Here are the first 3 rungs I need to convert, notice rung 2 uses a one second pulse and a counter to create a 5 min timer. 00000 |---] [---+---] [-------]/[----------------------------------------( ) | 00003 | 00009 C000 00108 | SEN. #1 | | L. PLATE| |---] [---+ | 00010 | | SEN. #2 | | R. PLATE| |---] [---+ | 00011 | | POWER | | RELAY | |---] [---+ | 00108 | THE NEXT TWO RUNGS WILL SHUT OFF CONVEYORS AFTER FIVE MINUTES | AND RESTART CONVEYORS WHEN A PLATE REACHES ENTRY SENSORS. | | RESET 1 SEC CONV.SHUT | LAMP PULSE OFF TIME 00007 |---]/[-------] [---------------------------------------------[CNT ] | 00202 01902 [ C000] | [ #0300] | SEN. #1 [ ] | L. PLATE [ ] |---] [---+---------------------------------------------------[R ] | 00010 | [ ] | SEN. #2 | | R. PLATE| |---] [---+ | 00011

[Crossbow 295]

You have plenty of timers and counters available in the FX1N (256 of each to be exact). You can certainly use a 1 second pulse (address will be M8012) and a counter, or use a timer address of T0 thru T199 which are 100 msec timers. If you give T0 a preset of 10, that's one second. Timers are coded as output coils, but instead of a Y address for an output, you put T0 K999 (space between Tx and preset, K indicates numeric constant, so this would be a 99.9 second timer). Hope this helps. Be sure to download the FX Programming Manual II (JY992D88101D) from the downloads section here and look at Chapter 4 for more detail.

[tmechanic 0]

Thank you, that helps alot, I was fogetting the constant. Can the time be made dynamic by using a memory location instead of a constant, in AB it would be N for integer in Siemans it would be MW or DMW for memory word, I can't remember what it is for Mitsu.

[navillusi 2]

Yes, timers can be dynamic, replace the K (decimal constant) with a device location such as a "D" register. i.e. -----(T10 D100)

[tmechanic 0]

OK, one last question to make sure I have it straight in my head, to reset a nonretentive timer all I need to do is make the rung false, correct?

[Rodney 21]

Yes as soon as the rung becomes false the elapsed is reset until the rung becomes true again. Rodney

[tmechanic 0]

Thanks Rodney, that's what I thought. I have another question that the manual has been less than helpful with. Is there a dedicated "Start of Scan" bit?

[panic mode 246]

what manual you have?

[tmechanic 0]

The man is Mitsu JY992D88101 rev. C

[panic mode 246]

Chapter 6.2 (page 353 of 468), ---edit--- i'm using version D of same manual