4.3 Phase Run-Up
The AL control, AL status and AL status code registers are responsible for communication
phase run-up (also referred to as EtherCAT status change), for current status display and for
any fault messages. The drive responds to every EtherCAT interface transition request made
by the AL control register via the AL Status and AL Status Code registers. Any fault mes-
sages are displayed in the AL status code register.
A status change within the AL control register is polled within the AKD, which means that an
AL control event does not lead to a HW interrupt within the drive.
4.3.1 AL Control (Address 0x0120:0x0121)
Parameter
Address
Bit
ZA
Drive
ZA
ECAT
Description
Status
0x120
3 to 0
R/O
W/O
0x01: Init Request
0x02: PreOperational
Request
0x03: Bootstrap Mode
Request
0x04: Safe Operational
Request
0x08: Operational
Request
Acknowledgement
0x120
4
R/O
W/O
0x00: No fault acknowledgement
0x01: Fault acknowledgement
(positive edge)
Reserved
0x120
7 to 5
R/O
W/O
-
Applic. specific
0x120
15 to 8
R/O
W/O
-
4.3.2 AL Status (Address 0x0130:0x0131)
Parameter
Address
Bit
ZA
Drive
ZA
ECAT
Description
Status
0x130
3 to 0
W/O
R/O
0x01: Init
0x02: PreOperational
0x03: Bootstrap Mode
0x04: Safe Operational
0x08: Operational
Status change
0x130
4
W/O
R/O
0x00: Acknowledgement
0x01: Error, e.g. forbidden trans-
ition
Reserved
0x130
7 to 5
W/O
R/O
-
Applic. specific
0x130
15 to 8
W/O
R/O
-
AKD EtherCAT | 4 EtherCAT Profile
Kollmorgen | kdn.kollmorgen.com | October 2017
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