HMS Anybus CANopen Slave How To Configure page 8

Using SDOs
When using SDOs the I/O sizes has to be set to user defined as shown below. In this case 10 bytes of I/O data
(PDO) is used.
Figure 3 Configuring the Fieldbus using PCP data.
Note: The IO size IN and Out, in this case 10 bytes, set the size of the PDOs. The number of bytes of SDOs
will depend on the data configured for the sub-network. The data configured for the sub-network indicates
the total I/O size. The number of bytes of SDOs is the difference between the data size configured for the sub-
network and the IO Size In and IO Size Out. In this case the total I/O size is 20 bytes (configured for the sub-
network) and the size of PDOs is 10 bytes. The size of the SDOs is then 20-10=10 bytes.
Sub-network data size
(20 bytes)
Figure 4 Configuring the size of the PDOs and SDOs in ABC Config Tool.
www.anybus.com
How to configure an Anybus CANopen slave module with TwidoSoft
PDOs
SDOs
HMS Industrial Networks AB
IO Size In and Out
(10 bytes, byte 1-10)
Sub-network data size - IO Size In and Out
(10 bytes, byte 11-20)
SCM-7032-042
Rev 1.01
Page 8 (29)