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Topics - william

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1
Technical support / undefined interrupt F1616
« on: March 02, 2021, 10:21:04 AM »
I have been running an F1616 plc for many years, and in recent years, occasionally (every 3-6 months) the plc locks up. 
Please see attached screenshot for the error message, Run time error in function #6, DM32 out of range, with the LCD pointing me to line 033B in function 6, which has been commented out. I suspect my firmware version 71 is too old to implement intrdef 100,n,1
If I were to return it, could you check for a hardware fault, and then upgrade this old PLC to the latest firmware?
I would consider also returning two nano-10 r75 plcs in the same package for upgrading to upgradable firmware.
William
 

2
Technical support / Small error in thermistor application note
« on: January 04, 2008, 04:03:26 AM »
I noticed a small error in your Thermistor application note. When the measured value is between -0.1 and -0.9 degrees F, the display shows it as positive. I only noticed because you have previously given me a simple solution to this precise problem.  

3
Technical support / read weather data from web
« on: September 14, 2007, 03:51:07 AM »
I am building a heating control system using the T100MD PLC, and need to read the weather forecast from a (BBC) rss weather feed. While I understand that one way would be to read the feed into a PC, and pass the stripped data to the PLC. However, for increased reliability I was wondering if it would be feasible to use an X-server to read the data from the web directly and use text manipulatiion on the PLc to extract the relevant data. Any tips appreciated.

4
Technical support / W98 freezes when online monitoring
« on: October 14, 2004, 07:17:33 AM »
After a short while (several minutes), my Windows 98se PC screen freezes when running online monitoring using trilogi V5.31, TLserver v2.1 and direct serial connection to a T100md+r47 PLC.  Using an x server over a very simple network and it freezes within a few seconds. Is there a known issue with w98? I can monitor reliably from my work w2000 PC over the internet.

5
Technical support / small negative temperatures on lcd
« on: October 11, 2004, 04:16:24 AM »
I would like to display both positive and negative temperatures  to one decimal place using setlcd. My code is:
A$ = STR$(A/10) +"."+STR$(ABS(A) MOD 10,1)
This works fine except for temperatures between -0.1 and -0.9  when the display is positive not negative. Any simple ideas?
     

6
Technical support / DTMF control
« on: March 05, 2004, 07:32:29 AM »
I'd like to control  my PLC using DTMF tones from my mobile phone to a land line near the PLC . Do you or any other users have any tips as to how this could be done.

7
Technical support / Recommend a Scada package
« on: April 05, 2002, 01:39:44 AM »
Can you recommend a simple/inexpensive scada/software package that would allow animated graphics to be created of the plant controlled by one of your PLC's with control buttons, and possibly viewed/controlled remotely by clients on the company network.

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