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YASKAWA
SIEP C730600 0E YAI Modbus TCP/IP Technical Manual
To change the priority in [Priority] field, select the desired priority from
and click [Save Changes].
Root Bridge
This field displays the MAC address of the root bridge on the network.
Hello Time (secs)
This field displays and indicates how often the bridge packets will be sent out. This value is set by the root bridge.
Forward Delay (secs)
The Forward Delay is displayed in seconds. This value is set by the root bridge.
Max Age (secs)
The Max Age is displayed in seconds. This value is set by the root bridge and indicates how long a message can
be passed along before being discarded.
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Port_Information
Role
The Role field shows how the port is being used. Refer to
for the seven settings in the [Role] field.
Table 8.4 Port Role Values
Port Role
Description
Unknown
An unknown error has occurred within RSTP.
Root
This port leads to the root bridge.
Designated
This port leads away from the root bridge.
Alternate
This port is an alternate path to the root bridge.
Backup
This port is an alternate path away from the root bridge.
Disabled
This port does not have an active link.
N/A
RSTP is disabled.
State
The [State] field indicates if the port is accepting and sending messages. The four possible values for [State] field
and the features of each state are shown in
Table 8.5 State Values
State
Accept Packets
Forward Packets
Learn MAC Addresses
Discarding
NO
NO
NO
Learning
NO
NO
YES
Forwarding
YES
YES
YES
Disabled
RSTP is disabled.
Version
In the [Version] field, when an STP-only node is detected on the network, this port operates in STP mode and
displays [STP]. [RSTP] will be displayed in all other cases. RSTP supports normal RSTP mode or STP mode.
Port BPDU Rx Count
The [Port BPDU Rx Count] field shows the number of BPDU packets received on that port. In general, root ports
receive far more BPDU packets than designated ports.
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Chart Page
The Chart page can be used to monitor one signal from a predefined list.
•
Frequency Reference
•
Output Frequency
•
Output Current
•
Motor Speed
•
Torque Reference
•
DC Bus Voltage
•
Terminal Analog Input 1
•
Terminal Analog Input 2
•
Terminal Analog Input 3
