Re: [Emc-users] Guidance on usb comp

[Dave <EMC@DC9.TZO.com>]

Siemens DriveCliq works the same way.   Everything is point to point.  
No external hubs or switches.
I think the controller I was using recently had 6 or 8 Ethernet jacks.  
The drive module had 3, one for the connection to the controller and two 
for encoder connections.
I think the line module (Ac to DC smart power supply) had 3 Ethernet 
jacks.     Hooking everything up was very quick.

Dave

On 2/28/2011 5:07 AM, Mark Wendt wrote:
> On 02/27/2011 11:42 AM, Jean-Paul Moniz wrote:
>    
>> Ethernet medium can be in  realtime take a look at sercos3 for example.
>>
>> It uses standard ethernet hardware.
>> Sent on the TELUS Mobility network with BlackBerry
>>      
> According to the wiki, you can't use standard ethernet hardware:
>
> " SERCOS III is designed in such a way that no additional network
> infrastructure (standard Ethernet switches, Hubs, etc.) is required to
> operate.
>
> In fact, no additional standard Ethernet (non-SERCOS III capable)
> components may be placed within a SERCOS III network, as their presence
> will
>
> adversely affect the timing and synchronization of the network."
>
> http://en.wikipedia.org/wiki/SERCOS_III
>
> Mark
>
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