Chapter 4
Configuration
MAN_905G_1.16
Page 120
To make I/O data available via Ethernet/IP, ensure that the Enable Ethernet/IP checkbox on
the Ethernet Settings page is checked. Appropriate Fieldbus Mappings need to be configured
to link the required I/O registers to the Fieldbus Interface, as described above in the Profibus
and Modbus/TCP sections. An “
I/O Instance”
for each fieldbus link must also be specified
so that the configured I/O data is made available to one of the six possible Ethernet
connections.
In this example, 40 I/O Registers (80 bytes) are transferred to I/O Input Instance 1 (i.e.
Ethernet connection 1). As per the table below, this data would then be available via
Ethernet/IP in class 04h, Instance Attribute 64h
or
in class A0h, Instance Attribute 1. If the
Disable
option is checked, the I/O transfer will not be made available to Ethernet/IP. The
table below shows the possible IO Instances and their corresponding Ethernet/IP locations.
IO Instance
Assembly Object
Vendor Specific Object
IO Input Instance 1-6
Class 04h, Instance 64h-69h
Class A0h, Attribute 01h-06h
IO Output Instance 1-6
Class 04h, Instance 96h-
9Bh
Class A1h, Attribute 01h-06h
