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CAN Network Summary

CAN Configuration Attributes

The CAN Network Summary window lists CAN Network attributes in two tab pages: "Config" and "Version."

 

Configuration Attributes: "Config" Tab Page

The Config window displays the user configurable parameters of CAN.

FW Upload – allows the user to get a copy of the current CAN firmware.

FW Download – allows the user to upgrade the CAN firmware.

Save to Flash – Pre-selects the current settings and saves them to flash memory. For more information, please see the Save to Flash section.

View Sub-objects – Shows all sub-objects for CAN Network object. For more information, see Object Summary Windows.

Bit Rate – The bit rate that the CAN bus uses. See MEICanConfig. See also CAN Bit Rate.

Cyclic Period – the period between sending consecutive SYNC messages (milliseconds). A value of zero will disable the SYNC messages from being produced. See MEICanConfig.

Health Period – the period (milliseconds) used for checking the health of nodes.
A value of zero will disable the health checking protocol.
For nodes that use the node guarding protocol, this is the node guarding period.
For nodes that use the heartbeating protocol, this is the heartbeat consumer time (the heartbeat producers are half this period). See MEICanConfig.

Node Number – the node number of the XMP on the CAN network. See MEICanConfig.

Inhibit Time – this coefficient defines the minimum time between two successive PDO messages. See MEICanConfig.

 

Configuration Attributes: "Version" Tab Page

The Version window is not user-configurable.


The firmware version in the screenshot above is 002B1.

BL Version – the version number of the CAN bootloader. See MEICanVersion.

FW Version – the CAN firmware version number. See MEICanVersion.

FW Rev – the CAN firmware revision number. See MEICanVersion.

FW Sub-Rev – the CAN firmware sub-revision number. See MEICanVersion.

 

Status Attributes: "Status" Tab Page

Bus State – the CAN bus will be in one of the following states: Off, Operational, or Passive. See MEICanStatus.

Tx Error Counter – the current value of the transmit error counter. See MEICanStatus.

Rx Error Counter – the current value of the receive error counter. See MEICanStatus.

Message Rate – allows the user to specify the Node Guard and Heartbeat times for the health protocols. See MEICanStatus.

Tick – a Counter that is incremented every 1ms. See MEICanStatus.

SW Rx Overflow – A flag indicating that the software receive buffer on the XMP has overflowed. 0 indicates that the buffer has never overflowed and 1 indicates that the buffer has overflowed. See MEICanStatus.

HW Rx Overflow – A flag indicating that the hardware receive buffer on the XMP has overflowed. 0 indicates that the buffer has never overflowed and 1 indicates that the buffer has overflowed. See MEICanStatus.

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