Documentation

Inputs

The block comes without inputs by default. One input can nonetheless be configured using the Bus off recovery parameter. Refer to this parameter below for additional information.

Outputs

The block comes without outputs by default. Outputs can nonetheless be configured by the mask parameters. Refer to the relevant parameters for additional information.

Module ID

This ID defines the link to the corresponding Setup block

Sample Time

Defines the base sample time at which this driver block gets its sample hit. This parameter can also be set to -1 for inherited sample time. The units are in seconds.

Get Status for Channel

Select the channel of the chosen module for which to get status information. The IO691 Status block supports channels 1 and 2 only.

Bus Off Recovery

Off means no bus recovery before the next model start. Auto means that the Status block triggers bus recovery immediately as soon as the bus-off state is detected. Manual means the user is provided an input port for bus recovery trigger.

Output as Array

If this is enabled, all the selected status outputs are collected into a single array. The signal ordering in the array is the same as is visible in the S-Function parameter dialog, going left-to-right and top-to-bottom

This tab collects channel-independent module status signals.

Live count

A counter that is incremented with each execution of the Status block, providing the module is active.

Initializing

Indicates that the firmware of the module is currently initializing.

This tab collects status signals which are calculated on a per channel basis.

Average Bus Load Percent

CAN bus load, as reported by the hardware every 250 ms. The average is calculated from the time elapsed since the last execution of the Status block.

Receiving

Indicates that the channel is currently receiving a message.

Receive Queue Empty

This is not zero if both the receive buffer of the driver and the message buffer inside the controller are empty.

Receive Queue Overruns

This counts the number of overruns that occurred for the receive queue, i.e. the number of discarded CAN messages.

DMA Receive Buffer Percent

0-100 % of the receive buffer on the driver side. The IO691 I/O module uses a buffer for up to 256 CAN messages.

	Note
	The RX Buffer Level might be greater than 0% when no CAN messages are on the Bus. This is because the RX buffer is also used for internal messaging.

Transmit Pending

The transmit queue is not empty.

Transmit Queue Overruns

Counts the number of discarded CAN messages which could not be put into the transmit queue because it was full.

Transmit Buffer Percent

0-100 % of the transmit buffer on the hardware module. The IO691 I/O module has a hardware transmit FIFO for 16 CAN messages.

Error Warning Limit Exceeded

This is set if either the CAN receive error counter or the CAN transmit error counter reaches the warning limit.

Error Passive Limit Exceeded

The CAN controller is in error passive mode. This is set if either the CAN receive error counter or the CAN transmit error counter reaches the passive limit.

Bus Off Status

The CAN controller is in bus off mode. This is set if the internal transmit error counter reaches the bus off limit.

Bus Coupling Error

Indicates a bus coupling or wiring error. Not available for the IO691 I/O module.

Transceiver Error

Indicates a transceiver error. Not available for the IO691 I/O module.

This tab collects feedback signals for the parameter settings currently in use.

Operating Mode

Current controller mode. 0 – Off, 1 – CAN low speed, 2 – CAN high speed, 3 – CAN FD. Note that the IO691 I/O module does not support CAN low speed.

Prescaler (BRP)

Outputs the current value set in the controller. Note that the IO691 I/O module uses the same BRP values for the arbitration and data phases.

Time Segment 1 (TSEG1)

Outputs the current value set in the controller.

Time Segment 2 (TSEG2)

Outputs the current value set in the controller.

Synchronisation Jump Width (SJW)

Outputs the current value set in the controller.

Outputs Current Value Set in Controller.

Data time segment 1 (TSEG1).

Outputs Current Value Set in Controller.

Data time segment 2 (TSEG2).

Data Synchronisation Jump Width (SJW)

Outputs the current value set in the controller.