BECKHOFF EtherCAT Registers Section II - Manual (Page 34)

AL Status (0x0130:0x0131)
II-22 Slave Controller – Register Description
3.21 AL Status (0x0130:0x0131)
Table 25: Register AL Status (0x0130:0x0131)
ESC20 ET1100 ET1200 IP Core
[15:5] [15:5]
V2.4.0/
V2.04a
Bit Description ECAT PDI Reset Value
3:0 Actual State of the Device State Machine:
1:
Init State
3: Request Bootstrap State
2: Pre-Operational State
4: Safe-Operational State
8: Operational State
r*/- r/(w) 1
4 Error Ind:
0:
Device is in State as requested or Flag
cleared by command
1: Device has not entered requested State
or changed State as result of a local
action
r*/- r/(w) 0
5 Device Identification:
0:
Device Identification not valid
1: Device Identification loaded
r*/- r/(w) 0
15:6 Reserved, write 0 r*/- r/(w) 0
NOTE: AL Status register is only writable from PDI if Device Emulation is off (0x0140.8=0), otherwise AL Status
register will reflect AL Control register values.
* Reading AL Status from ECAT clears ECAT Event Request 0x0210[3].
3.22 AL Status Code (0x0134:0x0135)
Table 26: Register AL Status Code (0x0134:0x0135)
ESC20 ET1100 ET1200 IP Core
V1.0.0/
V1.01b
Bit Description ECAT PDI Reset Value
15:0 AL Status Code r/- r/w 0