Anybus Communicator CAN PROFINET IRT 2.32 User Manual page 27

Anybus Configuration Manager
5.2.4 Subnetwork Settings
Settings for the CAN subnetwork.
Parameter
Bit Rate
Bus Off Action
11/29-bit CAN Identifier
Silence Time (ms)
Clear Buffer in Error
Passive
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Anybus Communicator ™ CAN PROFINET
Values Comment
20 kbit/s Select the bit rate on the CAN subnetwork.
50 kbit/s
100 kbit/s
125 kbit/s
200 kbit/s
250 kbit/s
500 kbit/s
800 kbit/s
1000 kbit/s
No Action Select what will happen to the CAN controller when the
CAN subnetwork goes bus off.
Automatic Reset
When the Control/Status Word is enabled this parameter
will be disabled (No Action).
11 bit Select CAN identifier size on the subnetwork
29 bit
If there are configured transactions when this parameter
is changed, the following will happen:
•
•
0 - 65535 Default = 0 (disabled)
The minimum time that must elapse between the end of a
message and the beginning of the next message. If a de-
vice on the CAN subnetwork is slow and/or does not have
a message queue, it may be necessary to enter a delay
between the messages to ensure that they are handled
correctly. The delay is set in milliseconds.
Disabled/Enabled Disabled: All CAN frames that are not successfully trans-
mitted will be buffered. The size of the buffer is 255
frames. If the buffer is full, new frames will be discarded.
Enabled: While the CAN state is Error Passive, all CAN
frames that are not successfully transmitted will be
discarded.
The usual reason for Error Passive state is disconnection
of the CAN cable.
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IRT (2.32) User Manual
A change from 11 bit to 29 bit identifier will cause the
identifier to be padded with zeroes up to 29 bits,
keeping the 11 bits at the same location.
A change from 29 bit to 11 bit identifier will cause the
upper 18 bits to be deleted and the lower 11 bits kept.
This may in some cases cause faulty CAN
identifiers.
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SCM-1202-035 1.0