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section 10.8.3. The Input Assembly Instance must be set to 150, and the
size must be set to the number of 16-bit registers that we wish to receive
from the interface card. For the purposes of this example, we are
assuming that the produced configuration array is defined as shown in
Figure 36, with two relevant registers (1402 and 1401). We therefore set
the Input Size to 2.
Output: The Output Assembly is the collection of command &
configuration data that is sent as an output from the PLC and consumed by
the interface card. Its structure is defined by the Consumed Register
Configuration as described in section 10.8.3. The Output Assembly
Instance must be set to 100, and the size must be set to the number of 16-
bit registers that we wish to send to the interface card. For the purposes of
this example, we are assuming that the consumed configuration array is
defined as shown in Figure 36, with two relevant registers (1007 and
1008). We therefore set the Output Size to 2.
Configuration: The Configuration Assembly Instance is unused, and its
instance number and size are therefore irrelevant (you can just enter “1”
and “0”, respectively).
When done, click “OK”.
Figure 62: Interface Card Module Properties
5) You should now see the new module (named “ETHERNET-MODULE
ASD_G9ETH”) in the 1756-ENET/B branch under the I/O Configuration in
the controller organizer view. Right click on this new module, choose
“Properties”, and select the Connection tab. Refer to Figure 63.
Confirm the setting of the Requested Packet Interval (RPI). The RPI
defines the amount of time (in milliseconds) between data exchanges
across an I/O connection. The smallest RPI supported by the interface
card is 10ms.