I just got a quotation for the ET1200: it's about 10 EUR/pcs in 10pcs quantity. (5EUR in 750 quantity). http://www.beckhoff.com/english.asp?ethercat/et1100.htm
This is from a local distribuitor, so I guess it's way cheaper from Beckhoff directly. Regards, Alex ----- Original Message ----- From: "Alex Joni" <[EMAIL PROTECTED]> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Monday, October 29, 2007 9:54 PM Subject: Re: [Emc-users] Ethernet I/O >I finally found this reference: > > http://www.rtcmagazine.com/home/article.php?id=100822&pg=2 > > "The slave controller chips are in the same range as standard Ethernet > chips > (roughly $5 in quantity 10,000). The synchronization mechanism for > EtherCAT > is already built in. Other solutions that rely on IEEE 1588 require an > extra > chip. All together this makes EtherCAT a very affordable technology." > > btw, I will be travelling in a couple of weeks to germany, might get in > contact with Beckhoff for some details. > > Regards, > Alex > > > ----- Original Message ----- > From: "Peter C. Wallace" <[EMAIL PROTECTED]> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Sent: Monday, October 29, 2007 9:16 PM > Subject: Re: [Emc-users] Ethernet I/O > > >> On Mon, 29 Oct 2007, Alex Joni wrote: >> >>> Date: Mon, 29 Oct 2007 21:00:22 +0200 >>> From: Alex Joni <[EMAIL PROTECTED]> >>> Reply-To: "Enhanced Machine Controller (EMC)" >>> <emc-users@lists.sourceforge.net> >>> To: "Enhanced Machine Controller (EMC)" >>> <emc-users@lists.sourceforge.net> >>> Subject: Re: [Emc-users] Ethernet I/O >>> >>>> Umm, no... As master, no problem but slaves will be expensive: >>>> >>>> Ethercat slaves require either custom proprietry hardware or >>>> proprietary >>>> IP >>> >>> Hmm, unfortunately I can't argue there.. been trying to find some prices >>> for >>> a slave chip. >>> I found some products, but no prices anywhere: >>> - beckhoff ET1100, ET1200 >>> - ESC10, ESC20 >>> and some FPGA IP Core for Altera & Xilinx >>> >>> Maybe you have an idea how expensive they are? >> >> >> No, I looked into this several months ago but was discouraged by the >> hardware requirements. For the sychronization standards, I have more >> faith >> that IEEE 1588 will get embedded in more Ethernet chips and processors >> with >> Ethernet, for example: >> Ethernet Transceiver with IEEE 1588 PTP Hardware Support from National >> Semi >> (Product News, 17 Oct 2007 ) >> >> National Semiconductor has introduced its Ethernet transceiver with >> integrated >> hardware support for the IEEE 1588 Precision Time Protocol (PTP). For >> applications in motion control, instrumentation, data acquisition and >> telecommunications, the DP83640 precision PHYTER transceiver synchronizes >> the >> distributed network nodes to a master clock with 8-nanosecond accuracy. >> >> >> The model DP83640 precision PHYTER transceiver synchronizes distributed >> network nodes to master clock with 8 nsec accuracy and offers 100 Mb >> synchronous Ethernet mode that eliminates any inaccuracy caused by clock >> drift >> between nodes. It integrates hardware time stamping of receive and >> transmit >> packets, high-accuracy IEEE 1588 clock, and 12 GPIO pins that handle >> simultaneous real-time events/multiple triggers. Device interfaces with >> any >> microcontroller, FPGA, or ASIC with Ethernet MAC. The samples of the >> DP83640 >> transceiver are available now in a 48-pin LQFP. The DP83640 will be >> priced >> at >> $5.24 each in 1,000-unit quantities. >>> >>> Regards, >>> Alex ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
