12
8903/IM 8903/IP Ethernet Communications Interfaces
3.
Select the drop down menu in the
Type
column to choose the required PLC type on
Register 1, for example.
4.
Set up all the input/output registers in a similar way.
5.
Set up the option parameters:
"Option Slot" = A (top). The Ethernet TechCard can only be fitted in the OPTION A slot of
the drive. This is the default setting for "Option Slot".
“32bit order” is set to either “Low Word First” or “High Word First”. This refers to how
32-bit data types, i.e. SINT32, UINT32 and FLOAT are encoded on Ethernet. If Ethernet/IP
is being used, this should always be Low Word First. If Modbus/TCP is being used, it
depends on the master.
•
Low Word First
is sometimes referred to as “Modicon Mode” and is used when the
least significant 16-bits are sent in a lower register number than the most significant
16-bits, i.e. Little-endian.
•
High Word First
is sometimes referred to as “IEEE Mode” and is used when the most
significant 16-bits are sent in a lower register number than the least significant 16-bits,
i.e. Big-endian.
“IP Address”, “subnet mask” and “gateway” are used to set the IP parameters. If set to
0.0.0.0 they may be configured over Ethernet, e.g. by using the Address Resolution
Protocol (ARP).
Remember
:
♦
The order and size of the
inputs
in the DSE Ethernet configuration MUST match the
order and size of the
outputs
from the PLC configuration.
♦
The order and size of the
outputs
in the DSE ControlNet configuration MUST match
the order and size of the
inputs
to the PLC configuration.
