<html><head></head><body>Dear Karl,<br><br>You have to sort your IOs in following categories:<br><br>- High Speed IOs, ex. force, position sensors<br>- Low Speed IOs, ex. temperature sensors<br>- Digital Interfaces, ex. RS232, Here you have to define data width and reaction time<br><br>Based on this categories you can decide<br>- only one master with one cycletime<br>- or one master with two cylcetimes<br><br>I do not think you will need a multi master system. This ist only used in very stiff and fast systems or you have a big data width to transport.<br><br>Depending on your application code<br>- complex Signal calculation and control<br>- or simple reacting on Signals<br><br>A small Atom based board can fit your needs. But this depends on your application needs.<br><br>On a modern Linux Kernel you will get good latencies with the generic driver at 1kHz. On the other side you do not have have to select a special board according to your selected Chipsets.<br><br>Best regards<br><br>Andreas<br><br><br><br><div class="gmail_quote">Am 15. Februar 2021 16:26:19 MEZ schrieb Karl Zeilhofer <karl@zeilhofer.co.at>:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">Hello users of EtherLab!<br><br>We are planing a retrofit a control system in the industrial field with<br>EtherCAT components.<br><br>* 500 digital I/Os<br>* 4 Analog Inputs<br>* 15 Analog Outputs<br>* SSI Input<br>* Some 9.6kbaud RS232 ports<br><br>Cycle Time should be in the range of 1 to 10ms.<br><br>What hardware would you recommend?<br><br>I have an offer for a Beckhoff IPC for around 2.000€ for an Core i7 with<br>4 LAN ports.<br>Another offer is about 800€ for a similar desktop system.<br><br>How critical is the decision for or against the supported Ethernet chip<br>sets (e1000, e1000e or r8169)? Would the generic driver be sufficient?<br><br>Kind regards,<br>Karl Zeilhofer<br><br><br></pre></blockquote></div><br>-- <br>Diese Nachricht wurde von meinem Android-Gerät mit K-9 Mail gesendet.</body></html>