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This function block provides administrative information about the ParID transfer of an axis (cross communication between drives).

Multi-axis function blocks (MC_GearIn, MC_CamIn, etc.) initialize a ParID transfer automatically if the master and slave axes are located on different network nodes.

A ParID transfer can be initialized explicitly with the MC_BR_InitMasterParIDTransfer, MC_BR_InitSendParID and MC_BR_InitReceiveParID function blocks.

The following information is returned by the function block:

•Number of transmit channels still available for the axis

•Number of receive channels still available for the axis

•Numbers of the ParIDs received including their source (node number, axis reference, etc.)

•Numbers of the ParIDs being transmitted

Information:

•The real and virtual axes of an ACOPOS or ACOPOSmulti channel share transmit and receive channels. Function block calls for both axes return the same result.

•When using CAN bus, 3 transmit channels are provided for all of the axes on a bus. In this case, the function block returns the configuration for these shared channels.

•Receive channels are not configured when using the CAN bus. Therefore, all of the values in the corresponding output structure are "0", "FreeReceiveChannels" = "5".