baylys-SAF

Thanks for all your advice. I'm emailing the design engineer for his thoughts. The original motivation for this post was to improve/tweek the U90 code for more useful data. I'd also hoped to be able to observe the system running via wifi through a "raspberry type" mini PC plugged into the PLC but maybe the JZ10-11-UA24 is not very capable of this. But regardless of the above, I should have a plan in place involving a hard wired simple improvised backup system, which can be run from a generator and survive a week long power outage, because I'm dealing with sewage. But I'll chew through this and maybe further on upgrade the PLC to one which more easily allows comms with a PC. Thanks.

Thanks for that. I'll contact the supplier and see if they have a plan.

This post might turn out to become an extended series but here is No1...... By the way, what are Tags ? How are they used on this forum.? We own a camping ground. We had no choice but to install an treatment plant for the camp sewage effluent. The plant(SAF) has been in operation since December 2016, the controller PLC is a JZ10-11-UA24. In consultation with the design engineer we have written a manual which outlines all critical maintenance of the various aspects of the plant. All but except for the Controller componants! 1. In reading info on the Jazz PLC, I see there is an internal battery which has an approx. life ten years. If in years to come someone happened turn the main power off or simply power failure and was unaware the internal battery had expired a week before, I have a feeling there would be a problem. - true or false 2. If 1. is true then I need to keep a copy of the PLC U90 software? 3. The JZ-PRG plug in module and software kit, allows the software, OS etc to be copied to a PC? 4. After 10 years will the JZ10-11-UA24 PLC be out of date? If so, would it be a good plan to check this every 5 years ? Thanks, mark