Mitsubishi Electric FX3U-CAN, Руководство пользователя

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6 Allocation of Buffer Memories
6.7 [BFM #24] Baud Rate
114
FX
3U
-CAN User's Manual
6.7 [BFM #24] Baud Rate
Set the baud rate in this BFM. The current baud rate can be found in BFM #37.
Note
• The Baud Rate must be equal for all nodes in the network.
• The new value needs to be stored by BFM #22 and the Module has to be restarted to make the new setting
effective.
6.8 [BFM #25] Communication Status
Displays the FX
3U
-CAN communication status.
Note
• A change of the function mode, the baud rate, or Node ID requires a restart of the FX
3U
-CAN to become
effective.
• If a configuration BFM is written to while in online mode (BFM #25 bit 4 is ON), BFM #29 bit 5 will be set
ON.
• When BFM #25 bit 7 is ON, the Module is initializing the internal data structures and the BFM, and any TO
command (write access) prohibited. If the BFM is written to, BFM #29 bit 5 will be set to ON.
When BFM #25 bit 7 is bit ON, the only access allowed is to read (FROM) BFM #25 and BFM #29.
Module restart
When restarting the module, set BFM #25 Bit 0 to ON.
In this case, set data that was not saved will be lost.
BFM Value Description
K10 Baud Rate 10kbps
K20 Baud Rate 20kbps
K50 Baud Rate 50kbps
K100 Baud Rate 100kbps
K125 Baud Rate 125kbps
K250 Baud Rate 250kbps
K500 Baud Rate 500kbps
K800 Baud Rate 800kbps
K1000 Baud Rate 1000kbps
Other value
Setting prohibited
If an invalid baud rate is written to BFM #24, the BFM will keep its former value and BFM #29 bit 11 will be set.
Bit
Description
FROM (Read Access) TO (Write Access)
Bit 0
Module online/offline
Layer 2 modes:
OFF: Offline
ON: Online
CANopen
®
modes:
OFF: Not in Operational State
ON: Operational State
Module restart
A restart is necessary to activate a new setting of the function
mode (BFM #21), the baud rate (BFM #24), the Node-Id
(BFM #27) or to activate the NMT master setting.
→
Refer to Subsection 5.8.5 and
Section 6.5, 6.7 and 6.10
All not saved settings will be lost.
OFF:
Normal operation
ON: Restart module
Bit 1
OFF: The error counter is below the warning level, in error
passive or in bus-off.
ON: The error counter of the CAN controller has reached
the warning level.
→ Refer to and Section 6.13 and 6.14
Reserved
Bit 2, 3 Reserved