Mitsubishi FX2N Battery Error

[mughis]

I got through a mitsibishi FX2N PLC and when i turned it on it was giving battery error. So when i checked it with system and run diagnostic so i found the same error. By visual inspection i saw that there us no battery in it and someone has taken it out. So my question is that how we are going to reset the PLC when the battery was not intact for how long whixh we dont know. I have the copy of program with me to upload it to plc but the actual issue is battery error.

[Crossbow]

So put in a battery and then download the program to it again.

[glavanov]

You need to install new or known good battery to clear the battery error.

The program is gone. It's great you have copy!

I had this issue last year and i end up writing the program my self... it was fun actually! :)

 

Edited February 17, 2021 by glavanov

[mughis]

Thanks  crossbow and glavanov for your reply. Yes i had the copy thats why i am saved :D 

[Ron_S]

This reminded me of a story.

20 years ago I built a panel with an hmi and fx2n for a lorry washer.

They washed their huge fleet of lorries with it.

 

In that time, the company folded and the washer was bought by a bus company.

They got my name from the drawings and asked me to supply the program.

I had used the special relay to inform them on the hmi that the battery was low.

They said it had been saying battery low for 6 months.

 

Now it won't work at all.

 

They were not too far away but wouldn't hear of me coming to site.

They wanted me to supply the program as an attachment on an email.

 

They actually had no idea how they were going to get the program in the plc.

Said they'd work it out ???

 

I told them I would supply a new battery and install the program for £300.

That is a good price,,, no I'm a rip off.

 

I lost patience at this point and ignored later emails.

 

I have saved every program from the last 30 years.

 

They eventually phoned me, told me off for not answering emails and tried to barter the price.

They were employing someone to wash busses.....

 

I made them do a bank transfer before I would come.

 

I was on site 30 minutes - up and running.

 

The boss was still not amused and told everyone I was charging £600 per hour.

More than a queens councillor he said. Lol.

 

 

 

 

[pcmccartney1]

Hence the phrase "Pennywise, Pound foolish"