Internet PLC Forum

General => Technical support => Topic started by: Fernandz on January 20, 2003, 03:58:46 PM

Title: Temperature Transmitters
Post by: Fernandz on January 20, 2003, 03:58:46 PM

I'm interested in useing the T100MD888+ in a building automation roll for H.V.A.C equipment. I'm a little green still when it comes to PLC's. I've noticed that some manufactures of building automation controls use 2 wire thermistors (NTC) connected straight to there analog inputs with no exterior signal conditioning can this be done with the T100MD888+ with its 5V analog output? If so where would i get this info.??

Title: Re: Temperature Transmitters
Post by: support on January 21, 2003, 07:56:09 PM

We don't offer specific interface for a particular class of temperature transducer. What the M-series PLCs have are generic ADC that accept signals that range from 0 to 5V (on T100MD1616+ there are 2 channels of 0-1V ADC).

If your temperature transducer/transmitter can be configured to produce 0-5V output then you can connect them to the T100MD888+'s analog input directly. Otherwise you need to get signal conditioner to convert the sensor's output into 0-5V.

Title: Re: Temperature Transmitters
Post by: Orlando Charria on May 22, 2003, 01:53:47 AM

Yes, we can provide a really low cost interface to connect up to 4 RTDs to any T100MD PLC.
You only need to connect the RTD at the input of the module and you get an analog 0-5VDC voltage output . This is the required input volage for the analog port of the T100. It's only U$55.

Please visit us at WWW.LT-AUTOMATION.COM

Regards,

Orlando :o