iPAK2 User Guide
58
7.4. Cyclic I/O (class 1 connection)
To have the EtherNet/IP connection activate the inputs to the welding control, access the
control configuration parameters (using WSP3, touch- screen or NetFlash) and select
I/O SOURCE: COM6-E/IP
then restart the control.
This setting only affects the inputs and outputs. Parameter access is always available, even if
I/O Source is set to something other than COM6.
The controlling device (usually a plc) must then be set up to initiate the connection. The
following screen-shot shows the required parameters:
As can be seen above, the control accepts 4 bytes of input information and produces 48 bytes
of output. This should be interpreted as 2 16-bit words (input) and 24 16-bit words (output) in
little-endian format (lsb sent first). The definition of these words can be found in this manual, in
the Modbus section.
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