BECKHOFF EtherCAT Registers Section II - Manual (Page 32)

ESC DL Status (0x0110:0x0111)
II-20 Slave Controller – Register Description
Bit Description ECAT PDI Reset Value
12 Loop Port 2:
0: Open
1: Closed r*/- r/- 0
13 Communication on Port 2:
0: No stable communication
1: Communication established r*/- r/- 0
14 Loop Port 3:
0: Open
1: Closed r*/- r/- 0
15 Communication on Port 3:
0: No stable communication
1: Communication established r*/- r/- 0
* Reading DL Status register from ECAT clears ECAT Event Request 0x0210[2].
Table 23: Decoding port state in ESC DL Status register 0x0111 (typical modes only)
Register
0x0111
Port 3 Port 2 Port 1 Port 0
0x55 No link, closed No link, closed No link, closed No link, closed
0x56 No link, closed No link, closed No link, closed Link, open
0x59 No link, closed No link, closed Link, open No link, closed
0x5A No link, closed No link, closed Link, open Link, open
0x65 No link, closed Link, open No link, closed No link, closed
0x66 No link, closed Link, open No link, closed Link, open
0x69 No link, closed Link, open Link, open No link, closed
0x6A No link, closed Link, open Link, open Link, open
0x95 Link, open No link, closed No link, closed No link, closed
0x96 Link, open No link, closed No link, closed Link, open
0x99 Link, open No link, closed Link, open No link, closed
0x9A Link, open No link, closed Link, open Link, open
0xA5 Link, open Link, open No link, closed No link, closed
0xA6 Link, open Link, open No link, closed Link, open
0xA9 Link, open Link, open Link, open No link, closed
0xAA Link, open Link, open Link, open Link, open
0xD5 Link, closed No link, closed No link, closed No link, closed
0xD6 Link, closed No link, closed No link, closed Link, open
0xD9 Link, closed No link, closed Link, open No link, closed
0xDA Link, closed No link, closed Link, open Link, open