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If you have a fibre optic cable near by why not use a fibre optic multiplexer of the type supplied by Weed instruments. 1 fibre for upto 10 signals- and no programming. I currently looking at them on a tunnel for distant io. Regards Del

400Hz is used on military equipment, so they can cut down on cable size, hence carry more cable(distance). regards stablefordd

You will also want a home signal, and end of travel hardwired limits. I once had a sevice call to a PLC in a welding shop when the input from the encoder saw a spike and told the PLC code it was a 1m short of the target, unfortunately the machine was only 1.2m long. The 100ton hydralic cylinder...

We had this problem on a Omron CQM1, manufacturer had put in the password, we had to take it to the local omron office, and have a coffee while they looked at it- they brought it back 10mins later cracked. I suspect they did 1 of 2 things; 1, Had a backdoor code. 2, Bruteforced it, by running a...

Looking at the photos, the meter probes are not up to the current designs- with only tips exposed. Also I would consider increasing the safety of the panel, by looking at IP2X components as much as possible to minimise contact points,remember someone still has to set up the equipment -hot with...

We have recently specced a SWAN analyser-which is a swiss manufacturer- comes ready assembled, very easy to install. online approx. $5K is the ballpark figure, and this is one of the cheaper brands. Very widely used in EU- but an excellent unit, I also asked for reference sites and...

Bentov, ahve you considered ASIBus, because it sounds like you have a conveyor installation, and this would be a perfect application for this, with very simple wiring, and alittle bit of configuration. Stablefordd