User`s manual
ioLogik E2260 User’s Manual Introduction
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Overview
(shown with and without optional LCM)
The ioLogik E2260 is part of the E2000 line of ioLogik Active Ethernet I/O servers, which are
designed for intelligent, pro-active status reporting of attached sensors, transmitters, transducers,
and valves over a network. It includes 2 MB of Flash ROM and 8 MB of SDRAM. An optional
hot-pluggable Liquid Crystal Display Module (LCM) can be used to view and configure device
settings.
Traditional Remote I/O
Ethernet remote I/O solutions have been on the market for a long time. Traditional solutions are
“passive,” in the sense that I/O servers wait passively to be polled by a host computer. The
response time in this type of setup, however, tends to be on the order of seconds. The “passive”
remote I/O structure is simply inadequate for data acquisition and control systems that require a
response time on the order of hundredths of seconds.
Active Ethernet I/O
Moxa’s Active Ethernet I/O line was developed specifically to address the limitations of the
traditional passive approach. Rather than having the host computer poll the I/O device server over
the network for the status of each I/O device, the Active Ethernet I/O server intelligently sends the
host computer status information under user-specified conditions. This is a report by exception
approach, which greatly reduces the load on CPU and network resources. Network packets are far
fewer in number and far smaller in size, since I/O information is only sent when necessary, and
only information from the specified I/O device is sent. Based on field tests of an ioLogik E2000
series server used in an RFID system, 50 ms is the typical response time over a 100 Mbps Ethernet
network. Moxa’s active I/O messaging system uses TCP or UDP for I/O messaging and supports
sending messages to up to ten host computers simultaneously.
In addition to providing intelligent status reporting, Active Ethernet I/O servers are backwards
compatible, with all of the functions and capabilities of traditional passive remote I/O servers.