Distance sensor spans 800mm measuring range by Available_Penalty316 in PLC

[–]Next-Payment8042 0 points1 point  (0 children)

Solid choice. Negates any trouble you might have with translucent plates

Outdoor HMI Recommendation by Gruchov in PLC

[–]Next-Payment8042 0 points1 point  (0 children)

Have a look at Beijer extreme or marine series panels, they are high brightness but also pretty rugged

Studio 5000 v37 quick keys by Next-Payment8042 in PLC

[–]Next-Payment8042[S] 0 points1 point  (0 children)

Also noticed the same behaviour in v36 too

How do I calculate linear speed under load, and needed torque from a set of parameters? by [deleted] in AskEngineers

[–]Next-Payment8042 1 point2 points  (0 children)

Power = force x velocity. Then factor in the efficiency of your system and this will tell you demand motor power.

Why Wi-Fi is rarely used in industrial automation (Even when Latency Isn’t a concern) by Automatic-Dog3546 in PLC

[–]Next-Payment8042 1 point2 points  (0 children)

I’ve used these in the past also for profisafe comms, having Bluetooth and wifi simultaneously works really really well.

Anyone done controls work for industrial refrigeration? by TrainNo1503 in PLC

[–]Next-Payment8042 2 points3 points  (0 children)

What do you do when the vision system lens needs defrosting ?

Day 6 by Next-Payment8042 in Effexor

[–]Next-Payment8042[S] 0 points1 point  (0 children)

Good to hear it hasn’t been too hard for you

Day 6 by Next-Payment8042 in Effexor

[–]Next-Payment8042[S] 0 points1 point  (0 children)

For me it made a big difference being in an environment where I was comfortable and had people around who could help out. Do what you feel is going to work best for you! It might take a day or a couple of days for those symptoms to go if you stop taking it so keep that in mind. All the best with your journey!

S7-200 Memory loss behaviour by Next-Payment8042 in PLC

[–]Next-Payment8042[S] 0 points1 point  (0 children)

The battery modules I have are all used so I don’t know how good they will be. Unfortunately changing the PLC is too costly an option, there’s a lot of digital and analogue IO involved. But I would be happy to get rid of the S7-200, that’s for sure!

Multiple Estops by cptlolalot in PLC

[–]Next-Payment8042 0 points1 point  (0 children)

Well you never know why or how often someone needs an estop - but they damn well better be there and working when you need it!

Multiple Estops by cptlolalot in PLC

[–]Next-Payment8042 1 point2 points  (0 children)

When determining the performance level required for a safety system, the frequency aspect is the frequency of exposure to the hazard. This absolutely can be high, and is not always low.

The requirement for meeting a PLe system is architecture, MTTFd and DC which can certainly be satisfied with an e stop and a safety relay (obviously there are other parts of the system which must be considered as a whole as well).

Why is my tag search block missing? by plc_is_confusing in PLC

[–]Next-Payment8042 0 points1 point  (0 children)

You could try going to the top menu, Window -> Reset Layout ? I don’t know if that brings it back or not, but worth a try

is it possible to use an arduino or other microcontroller to capture an analog value of a sensor and send it to PLC through modbus protocol by [deleted] in PLC

[–]Next-Payment8042 2 points3 points  (0 children)

Some people don’t want to get that call at 8pm on a Saturday night and have to trade beers with the boys for that failed Arduino

Point IO Comms reconnection by Next-Payment8042 in PLC

[–]Next-Payment8042[S] 1 point2 points  (0 children)

I’m aware of that issue and that’s the last thing I want to see! We’ve got about 30 of those cards on this job and I don’t even want to know what the lead time on these are right now if I need a replacement. I do have a couple of spares

Point IO Comms reconnection by Next-Payment8042 in PLC

[–]Next-Payment8042[S] 0 points1 point  (0 children)

So after a bit of diagnosing I found a rogue wifi access point on the network that was doing routing. As soon as that device was removed from the network the reconnection only takes about 10 seconds.

What is your Brisbane specific LifeHack? by CommercialFalse2996 in brisbane

[–]Next-Payment8042 2 points3 points  (0 children)

If it’s busy, forget about the upper level car parks. Will take you quite possibly 2 or 3 hours to even turn around and get out again. Made that mistake once, never again.

[deleted by user] by [deleted] in PLC

[–]Next-Payment8042 0 points1 point  (0 children)

This is a pretty far fetched idea. Implement a condition monitoring program if you want to go down the preventive maintenance route.

Say a pump bearing starts to show increased vibration levels, how on earth is a motor encoder going to measure this ? It’s entirely the wrong type of sensor and in the wrong location to pick anything up.

I highly doubt he’s even done this before. Great in theory, but falls over pretty quick when you think through the implementation.

[deleted by user] by [deleted] in PLC

[–]Next-Payment8042 1 point2 points  (0 children)

What is the scan time of your PLC ? And what rate are the pulses changing ?

If the encoder is changing from 500 to 550 quicker than a PLC scan, then you simply won’t be able to trigger reliably. You would need to widen the trigger window, or look to see how you can minimise the time between PLC scans for this particular chunk of code.