Sniffer Mode; Transparent Mode; Mapped Mode; Map Can Telegrams In Input Direction - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-658 CAN Gateway
5.1.1

Sniffer Mode

In "Sniffer mode", the I/O module is a passive node in the bus network. That
means that the transmitter is deactivated from the hardware side. In this operating
mode telegrams can only be sent and not sent in principle.
If CAN telegrams are received, no confirmation is sent to the sender.
Confirmation must be handled by a third node. At least two other CAN nodes
must be available. Received telegrams are transferred to the higher-level
controller via the "Mailbox 2.0" transmission protocol.
5.1.2

Transparent Mode

In "Transparent mode", the I/O module is an active node in the bus network. That
means that the transmitter is activated from the hardware side. In this operating
mode, telegrams can be received and sent.
If CAN telegrams are received, confirmation is sent to the sender. Received
telegrams are transferred to the higher-level controller via that "Mailbox 2.0"
transmission protocol.
5.1.3

Mapped Mode

The "Mapped mode" is fundamentally different from the other two modes. In this
operating mode, incoming and outgoing CAN telegrams can be mapped to the
process image without any protocol. Only user data and no control data is
mapped.
5.1.3.1

Map CAN Telegrams in Input Direction

Up to 44 bytes can be configured in the process image of the input. During
configuration, CAN telegrams can be selected from which a user data byte should
be mapped. A more detailed description is available in the "Process Image"
section.

Figure 8: Map CAN Telegrams in Input Direction

Manual
Version 1.2.0, valid from FW/HW-Version 01/01
Function Description 29