Recent Posts

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11
Controllers / Re: Controller Output diode
« Last post by FluidPowerTom on May 16, 2022, 05:40:13 PM »
Some relays can be ordered with built-in internal diodes.  I would check the relay to see if it indicates a diode on the diagram on the relay.  Otherwise you'll want to verify with the part number.  Same goes for valve coils.

However, modern microcontrollers such as PLUS1 generally do not require you to use valve coils or relays that have the diode.  That's really only needed now when you're controlling the coil with a PLC or a mechanical switch.
12
Controllers / Re: Controller Output diode
« Last post by G30RG3 on May 12, 2022, 11:55:21 AM »
As far as I read this, the "optional diode" is external.  There are internal diodes and they are always present.
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Controllers / Re: Controller Output diode
« Last post by acmall on May 12, 2022, 08:58:44 AM »

The diode being optional is mentioned on page 4 of this document, although it does not specify any particular controller type.

https://assets.danfoss.com/documents/53526/BC152886483485en-000501.pdf

14
Controllers / Controller Output diode
« Last post by macbahi on May 11, 2022, 08:15:18 PM »
Hi!!

I read the recirculating diode across the relay coil is optional.

Please how can I know if my controller has some output with this option. 

What documentation please.

Thank you very much

with best regards
15
Controllers / Re: POU Input output
« Last post by macbahi on May 10, 2022, 05:58:50 PM »
Thank you Tom
16
Controllers / Re: POU Input output
« Last post by FluidPowerTom on May 09, 2022, 07:59:01 PM »
In this case the variable names on the input and output busses for the POU will need to be INT1, INT2, and Out2. 

What you can do is don't connect the input bus and output bus from the POU to your main busses.  Instead, for example, connect your input signal 'Signal1' by itself to the input bus of the POU, and then rename it on that bus as INT1.  So you'll have just the green wires going to the input bus and output bus of the POU.  Does that make sense?
17
Controllers / POU Input output
« Last post by macbahi on May 09, 2022, 05:31:53 PM »
HellO,

I use POU  Structured text function as using in video #21.  It's working.

But my idea it's to use this function many times.  It can be used to calculate any things as simple example: Sum of 2 variables.

Function Sum
VAR_INPUT
     INT1  INT
     INT2  INT
VAR_OUPUT
     Out2  INT

Code
   Out2 := INT1 + INT2;


But When I call from call POU I must make the input and output as in function. In my example function are INT1, INT2 and Out2.
If other name variable  as data1,  data2  and Sum1 problem with compilation.

Please have idea how we can use POU structured text call without using the same name as input and output in function.

Thank you very much

Cordialy
Mac bahi
18
General controls / Re: Red and Green information about all module
« Last post by macbahi on May 09, 2022, 04:51:02 PM »
Hello!!

thank you for your replay

sincerely
Mac bahi
19
Controllers / Re: output shared
« Last post by topal on May 08, 2022, 08:36:10 AM »
Hello,

i used this way and it works

thank you

Pat
20
PLUS+1 Telematics Hardware / Re: CS500: No current config was found
« Last post by dlewis on May 06, 2022, 01:29:34 PM »
Well, it's working again.  I did nothing special except wait a day and attempted to download again.  This time it worked.
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