Daisy-Chain Ethernet I/O Connection; Efficient Ethernet Device Connectivity - Moxa Technologies ioLogik E1210 User Manual

ioLogik E1200 Series User's Manual

Daisy-chain Ethernet I/O Connection

The ioLogik E1200 industrial remote Ethernet I/O has two embedded Ethernet switch ports that
allow information to flow to another local Ethernet device or connect to the next ioLogik in the
daisy-chain. Applications such as factory automation, security and surveillance systems, and tunnel
monitoring, can make use of daisy-chain Ethernet for building multi-drop I/O networks over
standard Ethernet cables. Many industrial automation users are familiar with the multi-drop
configuration typically used in fieldbus applications. The daisy-chain function on the ioLogik
E1200 not only increases the connection between machines and panels, but also lowers the cost of
buying separate Ethernet switches, and at the same time reduces labor fees and cabling by a large
percentage. For example, if a production facility contains 700 stations (20 points per station), the
wiring cost reduction can reach 15% of the total implementation cost.

Efficient Ethernet Device Connectivity

The ioLogik E1200's built-in Ethernet switch ports can be cascaded to other Ethernet devices at the
same location. A typical situation is a remote site that has a few sensors, devices, and Internet
connectivity. Take a roadside cabinet as an example. The IP camera monitors activity on the street
and an Ethernet I/O device handles environmental monitoring, intrusion, and alarms, and triggers
the camera to take snapshots when needed.
The traditional approach for this kind of remote monitoring application requires an additional
switch or hub for connecting the Ethernet I/O device to the IP camera. A better approach is to
connect another Ethernet device such as a PLC controller or an IPC in the same cabinet and use
the industrial switch embedded in the ioLogik E1200. Not only does this solution reduce the
number of failure points associated with an additional switch or hub, but it also reduces the
amount of wiring needed for power, signals, and the network. Space inside the cabinet can also be
saved.
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Introduction