be used to allow the connection into the PRP network without
having bad status in diagnostics.
EIOC Configuration
The EIOC is configured in the I/O network level of DeltaV
Explorer and it does not count towards the controller node
count limit (limited to 60 EIOCs per system). The hierarchy
of the EIOC in DeltaV Explorer consist of:
EIOC
z Assigned Modules – Modules configured and running
inside the EIOC.
z Hardware Alarms – Hardware alarms associated with
the EIOC.
z PO1 – EIOC port, where the Ethernet Device Network
and protocol is setup.
z PDT – The Ethernet Devices are added and configured
under the EIOC port as Physical Devices (PDTs).
The amounts of PDTs that can be configured will vary
depending of the protocol selected in the port and
the amount of device licenses assigned. The PDTs can
be renamed.
z LDT – Logical Devices (LDTs) are added under the PDTs to
configure signals or control tags depending of the protocol
that has been selected at the port level. DST licenses are
applied at this level.
EIOC Licensing
Licensing for the EIOC is easy and scalable. Just buy the
hardware assembly for the EIOC, simplex or redundant.
No additional license is required for redundancy. Then decide
which protocol you need (one per EIOC is permitted),
and pick the appropriate license. Next, determine how many
Ethernet Devices you need to connect, and pick the license
containing the required number. Once the EIOC is configured
one DST license will be consumed per LDT, with the type being
determined based on the highest value configured in the LDT
(except for the EtherNet/IP Control Tag Integration Protocol).
For the EtherNet/IP Control Tag Integration protocol,
one DST license is consumed per Control Tag. The DST license is
consumed based on the type of Control Tag that is configured.
PRP does not require a license, as it is included as part of the
EIOC functionality.
Summary
The EIOC supports communications with Ethernet Devices
using Modbus TCP, EtherNet/IP, IEC61850 MMS, OPC UA client
and Ethernet/IP Control Tag Integration protocols. The EIOC
supports a huge capacity of data for monitoring or control.
The Capacity, polling and switchover times vary based on
protocol, device type, and loading. Refer to the DeltaV System
Planning Guide for more information.
The EIOC capacity lends itself to very large integration projects
with limited control needs. For applications that require
batch or sequence control (class-based units, PLMs, SFCs,
and Equipment Modules are not supported in the EIOC)
or more complex control that requires other functionality
such as traditional, bus, or Electronic Marshalling IO, then a
PK controller or a VIM2 card combined with a DeltaV controller
could be a better solution. Please consult your local Emerson
office for more details.
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