Toshiba TNB21, Instruction Manual

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Chapter 3 Setting
6F8C1637
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3.5 Option Functions (Reserved)
3.5.1 Setting the self healthy mode parameters
In the self healthy mode, the talker block of the node becomes scan healthy
even if an error occurs in the transmission path. In normal operation of the
TNB, all scan blocks become unhealthy if an error occurs in the transmission
path due to disconnection. If the TNB is set to the self healthy mode, the scan
healthy information of the talker block of the node stays in the state when an
error occurred in the transmission path.
To set the TNB to the self healthy mode, do the following.
In the parameter screen of the TNB, set the option switch to ON and
perform a download.
The following table shows the scan healthy information that is provided by
the TNB in the self healthy mode to the host controller.
Table 3-7 Scan healthy information in the self healthy mode
Talker area When the transmission path
is normal
When the transmission path is abnormal
(e.g. cable disconnection)
Talker area of
the module
Host controller is normal
：
Healthy
Host controller is abnormal
：
Unhealthy
Host controller is normal when transmission
path is abnormal
：
Continuously healthy
Host controller is abnormal when
transmission path is abnormal
：
Continuously unhealthy
Talker area of
other node
Other node is normal
：
Healthy
Other node is abnormal
：
Unhealthy
Always unhealthy