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Messages - mvincent

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1
Technical support / FMD88 Dim output light
« on: August 27, 2012, 07:01:47 AM »
Hi,

I am trying out a new prox sensore from Keyence.  It is a two wire NPN 24 v DC prox.  When it is in its off state, the input it is tied to, leaves a dim light on.  I am using the blue wire to the PLC and black to 0v from it and it is wired properly according to the wiring diagram.  Any ideas?  I am also pulling 17v in off state vs 20v on my other outputs.

Thanks

2
Technical support / Re:Sequencing question
« on: June 19, 2012, 09:32:32 PM »
So I got the counters to all work, however when the DNctr = 0 it just stops everything.  Here is the Dcusf I am using for Seq 1:4:

IF DM[5]=0 then CALL 26                ' DM[5]=ctrpv[2]

else CTRPV[1]=1                      ' CTRPV[1]= my sequencer that I am trying to send back to sequence 1

If I use AdvSeq1:1 it resets the sequencer back for another cycle.

I can't figure out how to get it out of the sequencing cycle when the counter hits 0 and go to dcusf#26

What am I doing wrong?

Thanks

Matt

3
Technical support / Sequencing question
« on: June 11, 2012, 10:11:53 PM »
I have a sequence of operations that I am doing and  I need the user to be able to plug in how many times the operations need to be repeated(using a DM value input from an HMI), i.e I need Seq 1:1 to Seq 1:5  to run 10 times.  

I am having a mental block about how to go about doing this.

Any help would be greatly appreciated!

Thanks
Matt

4
Technical support / Undef. Interrupt Error Message
« on: March 23, 2012, 09:19:19 AM »
I keep getting this random error message:

Undef. Interrupt
CF# 0005:01CB


Can anyone give me some insight on why it is happening randomly and few and far between?

Thanks
Matt

5
Technical support / Re:Reset without changing DM Values
« on: November 22, 2011, 06:13:49 AM »
Thanks!

6
Technical support / Re:Reset without changing DM Values
« on: November 21, 2011, 08:39:11 PM »
I am using  2 -F2424's and one Nano and only one F2424 has to retain the data as I am writing to the other slaves.  I looked at the save eep command and am still unsure on how to convert 16 bit integer data to to DM values.  I am using DM[110]-DM[115].  All help is appreciated!

Thanks

7
Technical support / Reset without changing DM Values
« on: November 21, 2011, 07:05:22 AM »
How can I reset all I/O's, counters, and sequencers, without losing my DM values?  I need to have an E-stop on a machine, but I don't want to lose all DM values....

Thanks
Matt

8
Technical support / Modbus Stepper Control
« on: November 05, 2011, 08:14:32 AM »
Hello People,

I am fairly new to the world of PLC programming and I am at a sticking point with the program I am working on.

I am trying to control 7 stepper motors from 2-F2424's  and one nano.  I need to send a modbus command(?) to the other plc's to start the stepper motors.  I am trying to align beer cans for proper facing on the shelf before the sixpack ring is applied.  I have a succesful program except for sending signals out the the 4 external (from the master F2424) stepper motors.  There is a DM value that tells the stepper motors how far to travel after the photoeye spots the alignment mark(for different brands).

I have it all working great in simulation mode, I just need to figure out how to make the other motors work like the first 4.  The 7th motor is for the six pack ring advance. I though about doing it via DI/DO's but I can't set the value from my HMI if I do it that way.(at least I think)

So to sum it up, How do you send a stepmove and stepstop command to the other two plc's from with in my ladder program while keeping my DM value(from HMI Input)?

Thanks

matt@skabrewing.com


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