I am developing an application that activates on/off valves sequentially, a pulse starts the sequence, write true to activate valve 1, cylinder 1 activates sensor 1 and turns off memory 1 (write false), I use the lowering button of the memory 1 so that memory 2 writes tru and activates valve 2 and so on until the entire sequence is executed. all memories have the same connection and configuration (bool). The problem occurs in memory 45, the name assigned to the first memory is MT1_B1 for routine 1, MT2 _B2 for routine 2, etc. The problem occurs to me in step MT45_B4. Is there any restriction on the names used for these components? Another possible problem is that I develop the application using an hwd file for mc012_110 (it is the hardware that I have available to run and monitor in servicetool), then I copy the routines and paste them into the program to use on the machine, which is a mc050_110, both files are compiled without errors, the drivers can be loaded into the controllers, both drivers can be monitored without problem using service tool, but on the field hardware (mc050) the routine is interrupted at step MT45_B4. Is there any restriction on the maximum number of memories and/or their names?

Thank you for the reply.

I'm still not quite sure how I use the None-volatile Memory Dynamic.

Any way you could provide an example on this?

Hello I am new to Danfoss! THANK YOU FOR ANY HELP!!

I am trying to control a proportional valve with a PWM signal, the valve requires a 0 to 600mA.

What are the steps involve in this. as simple as possible?

1. Scaling. the valve is inversely proportional so 0mA= 3000PSI and 600mA=0PSI, I can use y=mx+b or scale function from library.
2. is there a function block needed to output a PWM? or can I send the scaled value to the Multifunctional Output?
3. how is the ping configuration done? Output mode option 3,4 or 5?

Thank you again !!

Since I recently had to deal with Bosch-Rexroth valves that wanted PWM signal, I'll share my insight on this, be aware I don't know your specific valve type so milage may vary.
The datasheet for the valve should at least have some guidelines on how to drive the valve via PWM.

What worked for the specific valve I was working with (which was contrary to the datasheet for that valve) was

Config per output:
PinConfig = 5
DitherAmp = 600 (60mA)

Config per group (you'll see this under the main page for Outputs)
CurChgLim = 111 (default)
DitherFreq = 150 (150Hz)
ReqFreq = 1000 (1kHz)

After messing around with the settings for a bit this proved to be very smooth way of controlling the valves in question.

I used the PWM driver from the function library (really worth the investment to save time).

Be mindful that not all outputs on all the danfoss controllers support dither and such (like MC050-118 does not support dither on output 41 and 46 iirc).

1. As a beginner yes I would use the scale Fb this is
2. Yes there is a PWM_Driver function block found in the outputs library, see attached
3. Ping config 3 is a good starting point, see attached

I've just tried to update the hardware of a project with a DM1000.
I had a compilation error concerning the RS232 output which I corrected by modifying the data format.

I didn't get any image errors.
Did you get more details about this error?