[etherlab-users] Failed to read reg alias of slave

[Len Remmerswaal]

Hi all, I am trying the etherlab master, and I am getting the following message when attaching a small ethercat segment and starting the Etherlab master (v. 651e9cfb244b). EtherCAT DEBUG: Reading alias from register 0x0012 of slave 5. EtherCAT WARNING: Failed to read reg alias of slave 5. When running “ethercat slaves –v” I get this amongst others (question marks inserted by me): === Master 0, Slave 5 === State: PREOP Flag: + Identity:   Vendor Id:       0x00000002   Product code:    0x0c5a3052   Revision number: 0x00000000                      ???   Serial number:   0x00000000                      ??? All 0? DL information:   FMMU bit operation: no                                Distributed clocks: no                           ??? Beckhoff’s docs say yes Port  Type  Link  Loop    Signal  NextSlave    0  N/A   down  open    yes             4        ??? All ports N/A ?    1  N/A   down  open    yes             6    2  N/A   down  closed  no              -    3  N/A   down  closed  no              - Mailboxes:   Bootstrap RX: 0x1800/244, TX: 0x18f4/244   Standard  RX: 0x1800/246, TX: 0x18f6/246   Supported protocols: CoE, FoE General:   Group: AnaIn   Image name:   Order number: EL3162   Device name: EL3162 2K. Ana. Eingang 0-10V   CoE details:     Enable SDO: yes     Enable SDO Info: yes     Enable PDO Assign: yes     Enable PDO Configuration: yes     Enable Upload at startup: no     Enable SDO complete access: no   Flags:     Enable SafeOp: no     Enable notLRW: no   Current consumption: 180 mA When running a few reg_read commands I get this: # reg_read -p5 0x0012 2 Failed to read register: Input/output error # reg_read -p5 0x0010 4 00000000  06 00 00 00                                       |....| # reg_read -p5 0x0000 32 00000000  01 01 0c 00 02 04 04 00  00 00 00 00 00 00 00 00  |................| 00000010  06 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................| The 00 at addresses 0x0007 and 0x0008 seem to be wrong and responsible for the weird port descriptions, All other slaves seem to be doing fine. I may be linking things that I should not see as linked: I am new at this stuff. However, can anybody point me at a probable cause? I sure would  love that  DC on my slave! Thanks, Len.

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