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 Post subject: ATR244-12ABC analogue input configuration
PostPosted: 21/04/2021, 9:18 

Joined: 21/04/2021, 9:10
Posts: 3
Hello

Our company has bought a device with ATR244-12ABC temperature controller. Pt100 probe is connected to the controller and used in feedback loop. In controller parameters configuration, parameter Sen.1 is set correctly as Pt100 and measuring range is from -200 to 600degC. However, Lower Linear Input AI1 and Upper Linear Input AI2 (values corresponding to 4 and 20mA in our case) are set as 0 and 1000 respectively. I thought that these should be set as -200 and 600 as this is the measuring range.

Can you please clarify what is exact meaning of this parameters and if this configuration is ok?

Thank you!


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 Post subject: Re: ATR244-12ABC analogue input configuration
PostPosted: 21/04/2021, 10:33 
Moderatore

Joined: 12/09/2016, 14:49
Posts: 905
Good Morning,
The parameters "Lower Linear Input" and "Upper Linea Input" is for inputs 4-20mA.
So in AI1 with PT100 probe even if these two parameters change nothing happens. Should have a 4-20ma sensor connected in AI1 and insert the measurement range of the sensor 4-20mA in those parameters.
The configuration is fine.
Best Regards


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 Post subject: Re: ATR244-12ABC analogue input configuration
PostPosted: 21/04/2021, 14:41 

Joined: 21/04/2021, 9:10
Posts: 3
Pixsys tecnico 6 wrote:
Good Morning,
The parameters "Lower Linear Input" and "Upper Linea Input" is for inputs 4-20mA.
So in AI1 with PT100 probe even if these two parameters change nothing happens. Should have a 4-20ma sensor connected in AI1 and insert the measurement range of the sensor 4-20mA in those parameters.
The configuration is fine.
Best Regards


Thank you very much for quick response!

However I still have problem with retransmitting this input to my PLC. This is done via analogue output of ATR244. On my PLC I receive around 11000 counts for temperature of 40degC. Input channel on PLC goes from 0 (4mA) to 27468 (20mA). This is clearly not good as 11000 counts is almost half of this band. Do any analogue output parameters need to be changed?


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 Post subject: Re: ATR244-12ABC analogue input configuration
PostPosted: 21/04/2021, 15:06 
Moderatore

Joined: 12/09/2016, 14:49
Posts: 905
Hi,
For the retransmission of the analog input (PT100) in 4-20mA must set the parameter 298 "rtm.1" in A.i.N.1" and set the begin scale in the parameter 300 "r.1.L. L" to "-200" and the end scale in the Parameter 301 " r.1.u. L" to 600.
the begin (-200) and end (600) scale must also be inserted in the PLC

Best Regards


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 Post subject: Re: ATR244-12ABC analogue input configuration
PostPosted: 11/05/2021, 10:11 

Joined: 21/04/2021, 9:10
Posts: 3
Pixsys tecnico 6 wrote:
Hi,
For the retransmission of the analog input (PT100) in 4-20mA must set the parameter 298 "rtm.1" in A.i.N.1" and set the begin scale in the parameter 300 "r.1.L. L" to "-200" and the end scale in the Parameter 301 " r.1.u. L" to 600.
the begin (-200) and end (600) scale must also be inserted in the PLC

Best Regards


Everything works perfect! Thank you!


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