Hour:min timer dispaly on panelview micro 300 using micrologix 1200

Need help a source code to make timer display into hour:min descending from a time of delay 1 sec base timer.

Thanks

Have you tried the panelview source code?

There may be a native instruction somewhere to do this easily, but I'm not aware of it. Here's a brute force method.

First:
SUB Timer.PRE Timer.ACC <seconds left>

This gets the time remaining.

If the MicroLogix supported a MOD instruction, you could do:

MOD <seconds left> 3600 <hours left>

It doesn't, though, so you'll have to roll your own.

If you divide <seconds left> by 3600, you'll end up with <hours left>. If you do straight integer math, however, it will round, which is not what you want here. If you don't want to play with the math registers, write the result to a floating point. Subtract 0.5 and then store in another integer location. That way, when it rounds, you'll end up with the number of whole hours left.

Then, multiply <whole hours left> by 3600 and subtract the result from <seconds left>. If you divide that result by 60, you'll have <minutes left>, bearing in mind the rounding issues above.

In the PV300, you can use 2 numeric data displays, one pointing to <whole hours left> and the other pointing to <minutes left>. Put a ":" between them and select "fill with zeros" on the minutes display to make it look right.

Here's a quick-and-dirty RSLogix file.

thanks

Awesome, It work on my panelview.

I did not regret to join ths forum. So many people will help.

Many Thanks

joseph_e2 said:

If the MicroLogix supported a MOD instruction, you could do:

MOD <seconds left> 3600 <hours left>

It doesn't, though, so you'll have to roll your own.

Click to expand...

The Micrologix does support Modulus division.

If the destination address of the DIV instruction is the math register S:13 then register S:13 will contain the remainder and
S:14 will contain the unrounded quotient.

in the panelview software, insert a text object.
there is a time option in the creation dialog box.

that's what we use. i think its linked to the time clock on the panelview terminal itself.

regards,
james

TConnolly said:

The Micrologix does support Modulus division.

If the destination address of the DIV instruction is the math register S:13 then register S:13 will contain the remainder and
S:14 will contain the unrounded quotient.

Click to expand...

I knew about that, but wasn't sure of the details and didn't want to dig into it. This isn't *quite* the same as a MOD instruction, but if you do it right it gets the same result.

Actually using the Math Register on a division giving the 'unrounded quotient' instead of the normal 'rounded' quotient can come in very handy at times. So it kind of does double duty. it's not that bad. You just utilize the contents of the registers before doing some other math operation.

I can see that. I've never really used them and didn't feel up to experimenting just then. I will definitely tinker with them a bit when time allows. Thanks for the tip.

I have a problem on the minutes after the time setting when it is done. example 1hr:30min on the panelview 300. It become 00:30if my preset value is 30.I cannot change my preset value on the timer to zero because the minimun preset is 30min. On my panelview 300 operator can adjust the and change the preset value of the timer.

How are you setting the preset? Would be easier to diagnose if you post your code (zip PV and RSLogix files)

hi

hi friends,

i have micrologix 1200 plc with AIC converter
when i connect ML1200 PLC to PC
i am configure RSLinx (RS232-DF1) driver through AIC converter then it will display error like Package timeout
anybody help me, what is package timeout and what is the solution

Good Samaritan Can Help

I attached the code for the Oven. If anyone can help figuring out using panelview 300 micro.

Rung 12 to 14. Is the Timer I nedd to display on the panelview. Rapid Heat Timer.

Thanks

Attached file in Zip. One for the .rss and one for panelview cove.