[etherlab-users] Using EK1100 & EL2008 with DC

Oguz Dilmac odilmac at bilko.com.tr
Tue Jul 3 18:14:09 CEST 2012


Hi Ralf,

I checked again with etherlab master. It looks my devices support it.

Then I checked from Beckoff site: I downloaded "EL20xx_EL2124en.chm" 
from, http://www.beckhoff.com/english.asp?download/elconfg.htm.
In the "Basic Communication" -> "Distributed Clock" section it suggests 
these devices support DC. But it is not so clear.

I also downloaded the EL2xxx.xml with Beckhoff_EtherCAT_XML.zip.
There is no <AssignActivate> section for EL2008. But it does have this 
section for some other devices.
I also checked EK1100 from the xml files. There is no <assignActivate> 
section for it either. But I remember that some users of the list using 
this device as the reference clock.

What am I missing?

Best regards,
(and selamlar :) )
Oguz.

By the way, here is the information I get from ethercat master:
When I type:
ethercat slaves -v

I get:
=== Master 0, Slave 0 ===
State: PREOP
Flag: +
Identity:
Vendor Id: 0x00000002
Product code: 0x044c2c52
Revision number: 0x00110000
Serial number: 0x00000000
DL information:
FMMU bit operation: no
Distributed clocks: yes, 64 bit
DC system time transmission delay: 0 ns
Port Type Link Loop Signal NextSlave RxTime [ns] Diff [ns] NextDc [ns]
0 MII up open yes - 1281615183 0 0
1 EBUS up open yes 1 1281615783 600 145
2 MII down closed no - - - -
3 N/A down closed no - - - -
General:
Group: SystemBk
Image name:
Order number: EK1100
Device name: EK1100 EtherCAT-Koppler (2A E-Bus)
Flags:
Enable SafeOp: no
Enable notLRW: no
Current consumption: -2000 mA
=== Master 0, Slave 1 ===
State: PREOP
Flag: +
Identity:
Vendor Id: 0x00000002
Product code: 0x07d83052
Revision number: 0x00100000
Serial number: 0x00000000
DL information:
FMMU bit operation: no
Distributed clocks: yes, 64 bit
DC system time transmission delay: 145 ns
Port Type Link Loop Signal NextSlave RxTime [ns] Diff [ns] NextDc [ns]
0 EBUS up open yes 0 1299932986 0 145
1 EBUS up open yes 2 1299933296 310 155
2 N/A down closed no - - - -
3 N/C down closed no - - - -
General:
Group: DigOut
Image name:
Order number: EL2008
Device name: EL2008 8K. Dig. Ausgang 24V, 0.5A
Flags:
Enable SafeOp: no
Enable notLRW: no
Current consumption: 110 mA
=== Master 0, Slave 2 ===
State: PREOP
Flag: +
Identity:
Vendor Id: 0x00000002
Product code: 0x03f03052
Revision number: 0x00100000
Serial number: 0x00000000
DL information:
FMMU bit operation: no
Distributed clocks: yes, 64 bit
DC system time transmission delay: 300 ns
Port Type Link Loop Signal NextSlave RxTime [ns] Diff [ns] NextDc [ns]
0 EBUS up open yes 1 1311888425 0 155
1 EBUS down closed no - - - -
2 N/A down closed no - - - -
3 N/C down closed no - - - -
General:
Group: DigIn
Image name: TERM_DI
Order number: EL1008
Device name: EL1008 8K. Dig. Eingang 24V, 3ms
Flags:
Enable SafeOp: no
Enable notLRW: no
Current consumption: 90 mA



03.07.2012 17:05 tarihinde, Ralf Roesch yazd─▒:
> Oguz,
>
> I don't think that the EL2008 supports DC.
> You can check it with the
> ethercat slaves -pXXX -v
>
> I have a EL2004 which shows:
>
> ethercat slaves -p3 -v
> ...
> DL information:
> FMMU bit operation: no
> Distributed clocks: no
> ...
>
> If you have a DC-capable Module you can find the <AssignActivate> mode 
> in the ESI-File (XML).
> You would find it in the EL2xxx.xml - File from Beckhoff if it would 
> support DC.
>
> selamlar
> Ralf
>
> On Tue Jul 03 2012 15:27:41 GMT+0200, Oguz Dilmac 
> <odilmac at bilko.com.tr> wrote:
>> Hi,
>>
>> I want to use Distrubuted Clocks.
>> And to test it, I want to create a square wave on one of the digital 
>> outputs and watch it on an ossiloscope to see the jitter.
>> I'm using RTAI with kernel modules.
>>
>> I looked to the dc_rtai_sample.c.
>> I don't have an IDS counter. But I have an EK1100 and EL2008
>> How can I modify the sample code to activate DC on EK1100 and EL2008
>>
>> I know they support DC. But I don't know what to write to 
>> "assignActivate" code.
>>
>> Best regards,
>> Oguz.
>> _______________________________________________
>> etherlab-users mailing list
>> etherlab-users at etherlab.org
>> http://lists.etherlab.org/mailman/listinfo/etherlab-users
>
>
>





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