WI-GTWY-9-xxx Wireless Gateway V1.18
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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.
Byte order can be changed by selecting ‘MS Byte’
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
WI-GTWY-9-ETH1 #5