Internet PLC Forum

Yep thats the help I need. I do realise that I have to make the connection first.

So other than the 32 instead of 100 does my command structure look ok?

Ok I have been playing with the Ethernet examples. I can see its possible to do it either by Modbus or by NETCMD$

So a couple of questions.

Which would be the more stable method?

Secondly, if I only want to pass data say every 20 seconds, would it be better to retain the connection and if so how do I detect a disconnect

or

Connect, pass the data and disconnect each time?

Peter

We have a F2434 operating at a remote location and it hangs off a 4G network. At our office we have a nano 10. I need to monitor 2 inputs from the f2424 on the nano.

There is no issue with the f2424 getting out but the other way around is is an issue.

I was thinking about making the 2424 a Modbus client and have it connect to the nano via tcp but couldnt find how to make that happen.

Is there an example somewhere or can someone suggest a different approach?

Peter

Hi all.

I need to store say todays date in eeprom and then each day the pcl is fired up calculate the number of days between the stored date and the current one. Any suggestions?

I am using a F2424 at the moment soon to be replaced with a Fx2424

Many thanks Garry. I will give it a try.

Many thanks. I write code in Delphi and it does it for me but this is great. I will give it a go and let you know how I go...

Hi all. I have a f2424 coupled with a KEP HMI panel. I need to calculate the number of hours between events including if power goes off.

I have been simply increment a value every min. However if the PLC goes off line for any amount of time, this method fails. IWhat I am trying to do is calculate the number of hours between pump cylces. That is the pump starts now, pumps out a sump and turns off. 3 weeks later, the pump cycles again. I need to know the number of hours between these events.

Suggestions anyone?

Thanks.

So can I ask, does the rs232 type connection work just as good in a situation where the plc is within 6" of the hmi panel? It seems a lot easier to just use a cable I have laying around.

Also, what setup is needed on the f2424 to allow the hmi panel to work? What I mean is I can plug the hmi on but the plc needs to know there is data being read and written via that port. I realise you have to set up board rates etc but there must be something else to be set so it knows data is to come in and out..

I have previously used the 2424 with my own written software using modbus to read and write and it works flawlessly. But the hmi part is new to me. I am currently doing the graphics etc with the HMI and have that part working but how do I tell 2424 that it will have a hmi panel hooked up?