Functions
5.1 CANopen
SIMATIC PN/CAN LINK
Operating Instructions, 03/2022, A5E39895388-AC
39
5.1.1.8
Data exchange between controller and PN/CAN LINK
Cyclic data exchange: Process data, control and status information
The process data configured in the HSP are transmitted cyclically as PROFINET data between
S7 controller and PN/CAN LINK.
The exchanged process data are stored in the PN/CAN LINK as entries in the object dictionary
(OD) (in index 0x2000 to 0x2FFF). The values of the process data received by the S7
controller are written to the OD by the PN/CAN LINK. The values of the process data to be
transmitted to the S7 controller are read from the object directory.
Control information and status information is exchanged cyclically between the PN/CAN LINK
and the S7 controller in "CANopen Manager" and in "CANopen Slave" mode.
The following controller information is cyclically transmitted by the S7 controller to the
PN/CAN LINK:
•
Control bit for the state of the PN/CAN LINK
The user can influence the data transmission in the PN/CAN LINK from the S7 program
using a control bit.
•
Reset bit
The user can reset the CANopen side in the PN/CAN LINK from the S7 program using a
reset bit.
Detailed information on the control and status information is available here:
CANopen Manager (Page 46)
CANopen Slave (Page 59)
Summary of Contents for SIMATIC PN/CAN LINK
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