HMS Networks Anybus CompactCom 40 Network Manual page 145

Anybus Implementation Details
Appendix B. Anybus Implementation Details
1. SUP-Bit Definition
The supervised bit (SUP) indicates that the network participation is supervised by another network device. In the
case of PROFINET, this bit is set when one or more IO connections are established.
2. Anybus State Machine
The table below describes how the Anybus State Machine relates to the PROFINET network.
Anybus State Implementation
WAIT_PROCESS The Anybus stays in this state until an IO connection with an IO
controller is opened.
ERROR Configuration data mismatch, initial parameter error, or error reported
from application status register.
PROCESS_ACTIVE IO connection established with IO controller and valid output data has
been provided at least once.
IDLE IO controller with which an IO connection is established is in STOP
mode, the IO controller has not provided valid output at least once, or
error reported from application status register.
EXCEPTION Turn module status LED red, to indicate major fault, turn network status
LED off, and hold Ethernet MAC in reset.
3. Application Status Register
The application status register is primarily used in SYNC applications. It is used in applications where the network
in question supports the ability to indicate critical process data errors to the master. If the application sets an
error status to the application status register, the module cannot operate in the PROCESS_ACTIVE state. The
Anybus CompactCom will accept and handle the below listed status codes written by the application.
SCM-1202-021 Version 2.6
® ™
Anybus CompactCom 40 - PROFINET IRT Transparent
Comment
-
See Application Status Register (page 137)
information.
-
• Some IO controllers will not provide valid output
data in the first cycles following a successful
connection.
• See Application Status Register (page 137)
more information.
Some kind of unexpected behavior, for example
watchdog timeout. See also instance 1, attribute 7
in Network Object (03h) (page
Ethernet
for more
for
44).
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