Functions
5.1 CANopen
SIMATIC PN/CAN LINK
Operating Instructions, 03/2022, A5E39895388-AC
57
PN/CAN LINK states
The PN/CAN LINK can take on the following states in "CANopen Slave" mode:
State
Meaning
HW Init / Waiting for S7
The state of the PN/CAN LINK during booting and when the
PN/CAN LINK is not yet completely configured by the S7 controller.
Note: This is not an NMT state defined in CANopen standard.
Initialization
Initialization state The entries made by the CANopen Manager in
the "Communication parameters" are reset to factory settings. All
parameters configured in the HSP are reset to the values set in the
HSP. Communication is reset as well.
CANopen distinguishes between substates:
•
"Reset Application": The OD entries not equal to 0x1xxx are
reset. For PN/CAN LINK these are the process data exchanged
with the S7 controller.
•
"Reset Communication": The OD entries of the "Communication
Profile Area" (OD 0x1xxx) are reset and thus the CANopen
communication.
Pre-Operational
In this state the CANopen Manager can configure the slaves and
synchronize them with SYNC. Except for PDOs all other types of
communication are active (e.g.: SYNC, SDO, Heartbeat)
Operational
Normal operation, all types of communication are active
Stopped
Only heartbeat / node guarding are active but device can still be
controlled via NMT, "application OFF state"
Summary of Contents for SIMATIC PN/CAN LINK
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