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Hello,<br>
Can someone explain these two problems to me?<br>
<br>
- FIRST PROBLEM -<br>
<br>
With the command "ethercat -v salves" i have the following
configuration...<br>
<br>
=== Slave 0 ===<br>
State: OP<br>
Flag: +<br>
Identity:<br>
Vendor Id: 0x000000f9<br>
Product code: 0x00040003<br>
Revision number: 0x00000068<br>
Serial number: 0xfda7da22<br>
DL information:<br>
<font color="#ff0000">FMMU bit operation: yes</font><br>
Distributed clocks: yes, 32 bit<br>
DC system time transmission delay: 0 ns<br>
Port Type Link Loop Signal NextSlave RxTime [ns] Diff [ns]
NextDc [ns]<br>
0 MII up open yes - 1221735596
0 0<br>
1 MII down closed no - -
- -<br>
2 N/A down closed no - -
- -<br>
3 N/A down closed no - -
- -<br>
Mailboxes:<br>
Bootstrap RX: 0x0000/0, TX: 0x0000/0<br>
Standard RX: 0x1000/128, TX: 0x1080/128<br>
Supported protocols: CoE<br>
General:<br>
Group: Drives<br>
Image name: <br>
Order number: <br>
Device name: SM-EtherCAT (421)<br>
CoE details:<br>
Enable SDO: yes<br>
Enable SDO Info: yes<br>
Enable PDO Assign: yes<br>
Enable PDO Configuration: yes<br>
Enable Upload at startup: yes<br>
Enable SDO complete access: no<br>
Flags:<br>
Enable SafeOp: no<br>
<font color="#ff0000">Enable notLRW: yes</font><br>
Current consumption: 0 mA<br>
<br>
The vendor of the slave says that:<br>
<i>Just looking at the master log files, I've noticed one other
potential problem: their master seems to think that we <font
color="#ff0000">support FMMU bitwise operation</font>. We do not
support this and as such report it accordingly (our slave sets bit 0 of
register address 0x08 to 1 on the slave, which means that FMMU bit
operation is not supported). Has the master got the sense of this bit
reversed, perhaps?<br>
</i><br>
- SECOND PROBLEM -<br>
In dmesg kernel log i have:<br>
EtherCAT: Domain0: Logical address 0x00000000, 8 byte, expected working
counter 3.<br>
EtherCAT: Datagram domain0-0: Logical offset 0x00000000, 8 byte, <font
color="#ff0000">type LRW</font>.<br>
<br>
The vendor's answer:<br>
<i>I can see a problem: In the file <dmesg.log>, line 24 seems to
suggest that the Master is trying to use the LRW service, which, of
course is not supported. The master seems to know that this not
possible: the LRW command is not supported by our device. Can you ask
to use LRD and LWR instead?<br>
<br>
</i>Thank you, Regards<br>
Ezio DelBono<br>
<br>
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