Configuring/Programming
10.1 Configuring CANopen Manager
SIMATIC PN/CAN LINK
Operating Instructions, 03/2022, A5E39895388-AC
117
Defining receive data OD and assigning receive PDOs
The steps for defining and assigning the receive data are analogous to those for transmit
data:
1.
Create receive data object directory
2.
Define receive OD index and subindex
3.
Define receive PDOs
4.
Assignment of the OD entries used in the PDO
Note
The length of the receive data assigned to a receive PDO must match the length of the
transmit data in the corresponding transmit PDO at the end of configuring. If necessary, the
length of the receive PDO must be adapted by using predefined dummy OD entries.
Disable checking of PDO length
(for configuration with HSP_V17_0358_001_Link_PN_CAN_V2.0)
As of firmware version 2.0, you can select the "Disable checking of PDO length" option (see
figure below).
Option enabled
When you select this option, the data length (number of received bytes) of the received PDOs
is adapted. Error, warning or diagnostic messages are not generated.
The value is adjusted to the correct data length as follows:
• Data below the defined length are supplemented with the value 0.
• If data exceeds the defined length, the more significant bytes are deleted.
Option disabled
If you disable this option, all data from a received PDO with a length deviating from the
standard is discarded and replaced with the value of the last valid PDO (last received PDO
with the correct length). The CANopen Manager calls up an error message in the diagnostic
buffer.
Summary of Contents for SIMATIC PN/CAN LINK
Page 1: ......
