Glossary - Siemens Simatic Operating Instructions Manual

Glossary

AR (Application Relation)
S7 connection for data exchange in PROFINET
CAN (Controller Area network)
CAN is a serial bus system and belongs to the fieldbus family.
CAN node
Synonym for CAN device
CAN transparent
CAN transparent is an operating mode of the PN CAN LINK which enables transmission and
reception of CAN messages from the S7 automation program.
All CANopen functions are disabled in "CAN transparent" mode.
CANopen
CANopen is a communication protocol based on CAN which is mainly used in automation
technology and for networking within complex devices.
CANopen Manager
If the PN/CAN LINK is operated as "CANopen Manager", it takes over the following functions
in CANopen:
• NMT Master: The PN/CAN LINK controls the NMT state of the other CAN devices and
executes the boot-up procedure according to the CiA standard CiA 302 Part 2.
• Configuration Manager: The PN/CAN LINK configures the CANopen slaves during the
boot-up procedure by means of SDO write access.
CiA (CAN in Automation)
International users' and manufacturers' group for the distribution and standardization of CAN
Consumer
The receiver of messages is referred to as consumer in a CAN network.
SIMATIC PN/CAN LINK
Operating Instructions, 03/2018, A5E39895388-AB
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