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Messages - mhampson

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1
Technical support / Re:Corrupt EEPROM
« on: February 09, 2005, 05:21:17 AM »
Thanks for your help! I appreciate the clarification on the host commands. It looks like eveything I need is in the manual.

Michael

2
Technical support / Re:Corrupt EEPROM
« on: February 08, 2005, 05:41:35 PM »
That did the trick! You guys are great. Thanks for your help.

You know it sure would be nice to have a list of all of these commands that are not in the manual. I am in the midst of programming a LabVIEW serial driver for these guys and I's love to know if there are any further commands that would be helpful.

Thanks,
Michael Hampson

3
Technical support / Re:Corrupt EEPROM
« on: February 08, 2005, 05:13:54 AM »
Thanks for the assistance.

I tried this, and get this response from the PLC after entering @01cKILL00*:

@01ER56*

There is no change in the PLC's response to an attempted download.

I'm hoping that you made a small typo in the command, otherwise I could just need a new EEPROM!

Thanks in advance for your help.

Michael

4
Technical support / Corrupt EEPROM
« on: February 04, 2005, 10:38:37 AM »
After a program download, one of my PLCs failed on a checksum error. I want to download the program again, but now when I try to download, I get a "Enter Prog. Transfer password" box and cannot get past it. From what I read, this was a feature of the old DOS versions and is no longer supported.

Is there a way around this? I just want to reset the PLC and start from scratch. I really don't want to have to find an old DOS machine and run an old version 4 just to reset the PLC.

Michael Hampson

5
Technical support / Re:Analog Output Impedence
« on: July 14, 2004, 05:35:21 AM »
Thanks for your response, I will put a high impedance buffer in the circuit.

Michael

6
Technical support / Analog Output Impedence
« on: July 09, 2004, 06:43:12 AM »
Hi,

I am utilizing an analog output feeding a relatively high impedence analog input on a pump controller. The analog output is dropping about .35 V (to 4.65VDC) at 100% output. I am assuming I need a higher impedence signal conditioner, which I will get.

For future reference, what is the output impedence of this circuit? From my calculations of a .35 V drop into a 65K input impedence, I get a 5K impedence. Could a supprt person verify this?

Thanks
Michael

7
Technical support / Re:Pulse Frequency Measurement Problem
« on: March 30, 2004, 02:54:05 PM »
Oh, geez, I figured it was something stupid . :P  I now see that the channel numbers are noted in the installation guide, rather than being related to the digital input number. If I only had a brain!

Thanks for the quick response.

Michael

8
Technical support / Pulse Frequency Measurement Problem
« on: March 30, 2004, 05:00:19 AM »
I am trying to measure pulse frequency on my T100MD+ on channel 3 and am getting a 0 reading at all times. My actual pulse frequency should be around 5 (will be higher when installed). I have a "PMON 3" in my setup function which executes on the first scan, and every second thereafter, I have a function that runs which executes a "A = pulsefrequency(3)" instruction. A is always 0. I am using digital input #3 and can see the input light flashing rapidly, and I am not using the input for anything else (HSC etc.) in the program.

What am I missing here? I am going to try another channel and poke around with some things this morning. This is the only thing lacking before my customer trial.

Thanks,
Michael Hampson
XL Automation, Inc.

9
Technical support / Re:Multiple PID Loops?
« on: March 22, 2004, 02:35:36 PM »
I suspected that this was the case, but I couldn't find documentation that said that specifically. This is a big help, and a big feature for a small PLC like this too!

The programming, etc. has been a pleasure thus far for this machine. Great product.

Thanks for your response.

Michael

10
Technical support / Multiple PID Loops?
« on: March 21, 2004, 07:36:20 PM »
Can I implement more than one PID loop in the T100MD+ PLC? I need two independent PID loops, each  based on separate SP and PV inputs and CV outputs. Can I do a PIDdef for each channel, or can I just do one? Luckily, one PID has no D gain, so I can build my own PID for that loop without too much trouble if necessary.

Thanks,
Michael Hampson

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