analog to modbus - Electronic Circuits Projects Diagrams Free

carmusic · 1st April 2008, 12:21 PM

Is there any embedded Ic that could get analog voltage and then convert to modbus protocol,actually i am using op amp to mesurfe diffrential voltage then i send it to an external modbus analog card then it is read by a plc.
It makes a lot of wiring for nothing, i would like to combine all op amps and modbus card on one pcb, i would only have a rs-485 communication on it.
I don't know if that exist?

blueroomelectronics · 1st April 2008, 12:29 PM

They're called microcontrollers, lots to choose from. PIC, AVR come to mind.

carmusic · 1st April 2008, 12:34 PM

yes i know microcontroller but i don't have the time and knoledge to program them (modbus protocol is complicated). i was wondering if a all in one card exist that i could put on a pcb.

Papabravo · 1st April 2008, 01:05 PM

Yes the modbus protocol is complicated. There are only two solutions, one is a microcontroller, and the second is an FPGA with a microcontroller inside. Nobody said you had to develop this thing, you just have to pay somebody to do it for you.

http://www.huronnet.com

$5000-6000 should be about right including a handful of prototypes.

carmusic · 1st April 2008, 01:37 PM

Ok thanx, i was just wondering if something similar to http://www.advantech.com/products/8-..._1-23HYPQ.aspx
already existed but with no case, just the pcd board to be included on my pcb board.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Latest
The Oscilloscope	ElectroMaster	Electronic Theory	12	3rd February 2008 01:45 PM
Digital to analog converter chip	vuchris	Electronic Projects Design/Ideas/Reviews	6	16th October 2007 09:02 AM
Searching for Analog Switch - enable on LOW	toodles	Datasheet/Parts Requests	5	31st July 2007 07:13 AM
Analog Switches & Tri-state buffers	ChemE	General Electronics Chat	2	3rd July 2007 01:29 AM
analog function generator theory schematic	walters	General Electronics Chat	13	16th December 2005 04:28 PM

1st April 2008, 12:21 PM	(permalink)
carmusic	analog to modbus Is there any embedded Ic that could get analog voltage and then convert to modbus protocol,actually i am using op amp to mesurfe diffrential voltage then i send it to an external modbus analog card then it is read by a plc. It makes a lot of wiring for nothing, i would like to combine all op amps and modbus card on one pcb, i would only have a rs-485 communication on it. I don't know if that exist?

1st April 2008, 12:29 PM	(permalink)
blueroomelectronics	They're called microcontrollers, lots to choose from. PIC, AVR come to mind. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

1st April 2008, 12:34 PM	(permalink)
carmusic	yes i know microcontroller but i don't have the time and knoledge to program them (modbus protocol is complicated). i was wondering if a all in one card exist that i could put on a pcb.

1st April 2008, 01:05 PM	(permalink)
Papabravo	Yes the modbus protocol is complicated. There are only two solutions, one is a microcontroller, and the second is an FPGA with a microcontroller inside. Nobody said you had to develop this thing, you just have to pay somebody to do it for you. http://www.huronnet.com $5000-6000 should be about right including a handful of prototypes. __________________ We never have time to do it right; but we always have time to do it over.

1st April 2008, 01:37 PM	(permalink)
carmusic	Ok thanx, i was just wondering if something similar to http://www.advantech.com/products/8-..._1-23HYPQ.aspx already existed but with no case, just the pcd board to be included on my pcb board. Last edited by carmusic; 2nd April 2008 at 12:19 PM.