Siemens SIMATIC PN/CAN LINK

Functions
5.1 CANopen
SIMATIC PN/CAN LINK
48 Operating Instructions, 03/2022, A5E39895388-AC
Bit
Meaning
Possible values
Note
1 … 0
State of the
CAN
controller
0
Off
When specified accordingly by the
S7 controller.
1
Bus Off
Error counter
1)
has exceeded the
specified threshold, or PN/CAN LINK
needs more than 2 seconds to
synchronize itself to the CAN bus.
As a result, the PN/CAN LINK stops
transmitting/receiving any
packages.
2
Error Passive
Error counter
1)
has reached the
specified threshold.
The PN/CAN LINK continues to
transmit/receive packages.
3
Error Active
Error counter
1)
is below a specified
threshold.
This is the normal state. Everything
is okay.
1) The error counters customary in CAN and their associated thresholds are internal functions that are
not visible to the user.
Note
For values made up of multiple bits, the first bit is the MSB and the last bit is the LSB.
Example: Bit 1 ... 0 = "2" means that bit 0 = "0" and bit 1 = "1".