Internet PLC Forum

Gentlemen!

I have an application where I need two more outputs which can handle more current than 250mA as possible with outputs 17-24
I have used all other outputs with higher capacity.
Is it possible to use two outputs in tandem to drive a single load or must I use a SSR off board to handle the load?
I am driving a 400 mA at 24vdc solenoid.
The solenoid does have snubber diodes for the inductive kick

I updated to Trilogi 7.12 build 3 this weekend and discovered a problem.

If you do a  "save as" of a PLC program with a date in the file name like PLC 10.3.2017 rev 1  it wont save the PLC file correctly.

If you save it, is does save a file in the desired location, but you can't see it to reload it. If I look with file manager a file has been saved to the directory, but it has the file extension  FILE  instead of the desired PC7 file type.  

If you remove the date with separating periods from the file name, it saves correctly. Windows has no problem with the inclusion of periods in the filename.

In previous versions  of Trilogi the inclusion of the date with periods did not cause any problems.

I have a very strange ADC issue on a Fx2424

With a simple ADC test program (attached) I show no ADC inputs when in online monitor mode on the lines 5 and 6 as I would expect ( they show DC voltage on the inputs with DVM of between 1.5 to 2.5 volts from attached pots). I show a ADC value of 4091 on line 1 with nothing connected and DVM voltage shows no voltage at the input. The 5 volt reference voltage supply is not being pulled down by the pots.

Have run this on two different Fx2424 with same result.

Disconnected everything from the PLC except the analog input daughter board ( and I swapped those also) Ethernet and 24VDC coming in clean. If remove the analog daughter board analog 1 register stays at 4091 when watch with online monitor mode.

I suspect I have developed some kind of software/firmware version issue.

Now have:

Tri version 7.11 build 04

Java 8 up to date

Swapped my router and cables, same result.

Scoped the 24VDC – nice and clean and 24 volts

Tried different scan times for the read, no difference.

When I run online watch I see nothing for ADC inputs 5 and 6, 4091 for ADC line 1 and

The variables assigned for the ADC reads show nothing except input 1 which shows 4091

What am I missing???

My application is pulling the 10ma 5VDC ref voltage down on the Fx2424. If I add an external 5 volt source, all works well.

I remember one of your boards allowed changing a resistor to increase the current. I don't see that in the Fx2424 manual.

Any way to do this on the Fx2424 so I don't have to add an external supply?


Thanks

Currently if I have a program loaded on your development PC and want to print out the Custom Functions the only selection is to print all of them out between X and Y.

During development you may have numerous custom functions that get made to test etc which you don't want printed out and are not in the active program.

If the print command had an option to print only the Custom Functions that are used in the loaded active program, it would be very helpful.

In order to pull a single digital input low on the Fx2424, how many milliamps  must be handled by the output of the connected device to ground?

I did not see and example I/O addressing when using MD-HMI with Fx2424 and EXP1616R expansion card.

I believe Key 0 should start at input 41 and end with F4 on input 56.

LED1 would be output 65 and last F4LED would be at 72.

If this is not so, please give correct addressing.