Appendix B: Implementation Details
96 (104)
B
Implementation Details
B.1
SUP-Bit Definition
Not used.
B.2
Anybus State Machine
The table below describes how the Anybus Statemachine relates to the EtherNet/IP network
Anybus State
Implementation
Comment
WAIT_PROCESS
The module stays in this state as long as it is
running. From here it can only change to ER-
ROR or EXCEPTION.
-
ERROR
Duplicate IP address detected
-
PROCESS_ACTIVE
-
The module shall never enter any of
these states.
IDLE
-
EXCEPTION
Unexpected error, e.g. watchdog timeout etc.
MS LED turns red (to indicate a major
fault)
NS LED is off
B.3
Application Watchdog Timeout Handling
Upon detection of an application watchdog timeout, the module will cease network participation
and shift to state ‘EXCEPTION’. No other network specific actions are performed.
Anybus
®
CompactCom
™
40 Common Ethernet Design Guide
HMSI-27–269 2.1