Integrator_99

Hello @AMM, I'm not sure what would cause the "SCREEN ERROR", just a guess that has helped me resolve other GOT issues in the past: 1. GOT Write (and possibly upgrade) the BootOS.  This will erase your project on the panel and reinstall the HMI's base software. 2. GOT Write your Package Data again normally. You can also use GOT Verification to confirm the Package Data in the panel matches your project in GT Designer. Edit: Also take a look in e-Manual Viewer at JY997D52901-4DC.T1RE.  You may have an element assigned to a device that is not available in your PLC.

Hello loki1976, I don't have a lot of experience working with cylinders in the method you describe but I would think a double solenoid with a closed center position is often used for holding positions (maybe something like a 5-way, 3-position, closed center, double solenoid, for example).  What type of solenoid are you controlling the cylinder with? See Figure 2B here. Do you need a rod lock to keep the cylinder from dropping if you lose air pressure (E-stop)?

I forget but can you try increasing Advanced User Alarm Observation > Basic Tab > Buffering - Stored Number and see if that helps?

Hello Tarek_Shawki,      I don't have my GX Works open.  Does the FX3 have the EVAL(P)/DEVAL(P) instructions?  You could use those to convert the ASCII value to a FLOAT (probably store the result in a different register than the source value), then convert the FLOAT to an unsigned DWORD.

Hello Beny236,      I've used the MR-J4 a bit but I'm not an expert with them.  Have you configured the parameters in MR Configurator2?  There's an option in Function Display > Component Parts > Battery > Enabled (Used in ABS pos. detect system).      What fault code does the Amp display?

Hello A.J,      There are lots of ways to do this: One approach would be to use a 1min timer.  When the timer completes, lower the valve and start the timer again. (Timers like TON, TOF, OUT_T, etc.) Another approach would be to use PLC's internal system clock (SD214 - depending on PLC) and lower the valve when the value changes.      Which PLC are you working with and what language are you programming in (ladder, FBD, ST)?