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Messages - support

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1
Technical support / Re: Network Services <PING 192.168.1.99> command?
« on: August 15, 2025, 10:37:01 AM »
Sorry the TRi PLC currently do not send PING command to another device.

However, if the device has an open TCP port you can try to make a connection to the TCP port and check if connection is successful by examining the STATUS(3).  You can then disconnect from the device after making an initial connection.

2
Technical support / Re: NANO-10 Analog Input Protection
« on: August 13, 2025, 08:12:09 PM »
We think your input protection circuit should work pretty well.

We would like to mention that from our knowledge, all of the Nano-10 analog inputs have 20K ohm input impedance and should be pretty well protected against transient voltage applied to its input, such an momentary wrong connection to 24V, or electrostatic discharge.

Are you pretty sure that the Nano-10 analog input on your Nano-10 was damaged? You may want to request an RMA to send them back to TRi to check.


3
Technical support / Re: Analog ground point for Nano-10
« on: June 10, 2025, 10:00:47 AM »
Nano-10 does not have a separate analog ground. So yes you can connect the ground to the power supply 0V as the common ground. Ground noise has not been a problem for the typical applications that Nano-10 have been being used in the past. We do recommend connecting any additional 0.1uF capacitor across the analog input terminal to minimize fluctuation in the readings or do a software average of multiple readings.

4
Technical support / Re: MQTT Product Plans
« on: April 29, 2025, 02:28:25 PM »
We have a version of SmartTILE under development that supports MQTT. However, it is not yet a released product.

If you have an OEM application please contact support@triplc.com and discuss your application as well as the time-line needed.

Meanwhile you can test the MQTT functions using WX100. The same capability will be ported to the Gen 2 SmartTILE when it becomes available. 

5
Technical support / Re: PMW outputs
« on: December 29, 2024, 06:55:12 PM »
We have transferred a simple program based on  your code to a FMD PLC. When CR1 relay is turn on (use left mouse click during online monitoring), PWM1 and PWM2 (output 7 and 8) did light up momentarily for duration set by your DELAY statement.

FMD PLC uses a different type of solid state output driver from T100MD888+.  Can you try to pull up the output 7 and 8 with a 1K ohm, 1/2W resistor and see if it makes a difference to the control action on your SSR.

Please also note that FMD8810 without the FRAM-RTC have some memory limitation (only DM[1] to DM[1000] are available), so make sure that it is not because your program is trying access on existent DM memory and therefore the program is not behaving as your have experienced in T100MD PLC.

6
Technical support / Re: FMD MODBUS Long delay answering
« on: December 15, 2024, 05:30:19 AM »
Can you try to put the FMD PLC in PAUSE mode (you can turn on DIP switch #4 and reset the program) and then test the Modbus response time again. If the response time is shortened considerably then it is likely because the logic scan time in the PLC program is taking too long.  This can happen if you use a lot of DELAY statements in custom function to achieve time delay.

7
Technical support / Re: PMW outputs
« on: December 02, 2024, 12:57:25 AM »
It wasn't very clear what you meant by "no longer operate correctly"?  Do you have an oscilloscope to check the output waveform for frequency and duty cycle?

Note that if you are driving the input transmitter of a solid state relay, then check that the anode of the SSR is connected to the +24VDC of the PLC's power supply and the cathode is connected to the FMD PLC's digital output.

Is the SSR driving a DC load up to 100A? Please ensure that the correct type of SSR is being used.

The FMD PLC can operate a wide range of PWM waveform frequency. The T100MD is a very old PLC that only supports a handful of PWM output frequency (16, 32, 63, 250, 500, 2000,
8000 and  32000 Hz) and it will always fall only into one of the available frequencies. You may want to specify the same frequency of what is available on the T100MD when testing with FMD PLC if you expect similar behavior.

8
Technical support / Re: FMD MODBUS Long delay answering
« on: November 30, 2024, 07:30:37 PM »
Are you communicating with the FMD PLC via RS485?

You can try the SETSYSTEM 3, 0 command as described in the following document:

https://triplc.com/TRiLOGI/Help/tbasic/setsystem.htm

9
Technical support / Re: PWM issues
« on: July 06, 2024, 09:41:56 PM »
Is your custom function that run the first PWM running in a loop until the action is completed? If so that is the reason why the second PWM does not run until the program exits the first custom function.

You have to structure your program such that if you need to run two SETPWM on two separate PWM channels they should be run consecutively.  They could be in different custom function but your program must allow the custom function to exit and then return back on another scan.

10
Technical support / Re: PWM issues
« on: June 03, 2024, 05:28:33 AM »
Quote from: Hminx on June 02, 2024, 02:06:41 AM
thanks for that
... I find it odd that it is varying so much,..
You can try to increase the frequency of the PWM output  to reduce the variation of the output.

Quote
Also why does the PWM 1 output continue with start contact open, I need to hit reset to turn it off.

SETPWM command is a "set and forget" function. Once it is run the output will continue to operate at the duty cycle and frequency by the CPU hardware. In order to turn off the PWM output you must run another SETPWM command again to set the duty cycle to 0%.

11
Technical support / Re: PWM issues
« on: May 30, 2024, 09:08:02 AM »
PWM output from T100MD (or its successors - the FMD or Fx PLCs) are not designed to output precise number of pulses. It is meant to output a PWM pulse train that average to a mean level proportional to the duty cycle. The 0.05 second ladder logic contact is subject to I/O and program scan time so cannot be counted on to provide the precise amount of time.

The STEPMOVE function will be able to output precise number of pulses for positioning purposes. However, it will only output with 50% duty cycle if that works.

One way you may try is to run the SETPWM statement and then put a  DELAY statement and then turn it OFF.  This will mean that during the PWM output period the CPU program will wait in a delay loop waiting for the n ms to expires in the DELAY(n) function and not do anything else.

SETPWM 1,x, y   ' turn on PWM output
DELAY 50           ' wait 50ms  (0.05s)
SETPWM 1, 0, y  ' turn OFF PWM output

12
Technical support / Re: PLC paused by DIP Sw #4
« on: April 26, 2024, 11:35:35 PM »
Try to restart the i-TRiLOGI program and connect to the PLC again and go online monitoring. The message should disappear.

If this still doesn't fix the issue then try to re-start the Nano-10 and it should go away.

13
Technical support / Re: PID control of two contradictory PWM signals
« on: February 20, 2024, 09:37:00 PM »
The PLC can provide the PWM signal using the SETPWM command. That should be the easy part and I don't think you have any trouble with that.

We have no knowledge of how a system you described would work. What device is currently providing the two PWM signals you mentioned to the engine.

If you fixed one PWM signal and vary the second signal you might be able to plot out a curve of speed vs PWM2. You can then increment the PWM1 duty cycle and repeat the above. In the end you may have a series of charts that could give you a better idea of how the engine speed changes with respect to each PWM signal.

Once you get a better idea of how the speed vary with respect to the PWM duty cycle of each signal you may be able to work out an algorithm for controlling the engine.

14
Technical support / Re: Difficulty Troubleshooting Break Points
« on: December 21, 2023, 09:57:07 AM »
Did you set a breakpoint at the location you indicated in the comment? Or do you mean that you have encountered a runtime error that point to this location?

If you have intentionally set a breakpoint at your statement DM[12]=6399 then what are you trying to examine? You can view the value in the variable DM[11] executed in the prior statement to ensure that it has been assigned the correct value. I see that you wanted to assign it 32808, however, since all DM[] are 16-bit signed integers the numbers that it can contain range from -32768 to 32767. It won't be able to contain the value 32808.  It will instead overflow and becomes number -32728.

You can examine the value in DM[11] by hovering your mouse over it and it will display its value as shown in the picture below. Or you can use "On-line Monitoring" -> View Variable screen and scroll to the second screen where all the DMs are displayed to examine the value of DM[11].

--------------------------------------------------------------------------------------------------------------
If you have unintentionally set a break point there (it will be highlighted by a blue box around the statement) then you can remove the break point by clicking on the "Set Brk Pt" button to toggle it off as shown in the picture below. If you have uploaded the breakpoint to the PLC while doing online monitoring the PLC will stop execution at this statement and pause for your further action.

Alternatively you can also remove all break points from the "Edit-> Clear All Breakpoints" menu.


15
Technical support / Re: Simple counter with reset and display output.
« on: October 16, 2023, 07:23:23 PM »
How do you count distance with a photo eye?  Photo eye typically is triggered when a part comes into front of it and block the light path into the photo eye (either transmissive or reflective). 

Once you get the reading to output the measured data to a display is very easy, especially with a PLC that has built-in display such as the Wx100 or FMD or FX PLC with a LCD420 display.


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