Moxa Technologies ioLogik E1210 Manual page 3

Industrial I/O
OPC Connection to SCADA
Free Push-based Active OPC Server Lite Package
Active OPC Server Lite is a free software package provided by Moxa
that operates as an OPC driver for an HMI or SCADA system. General
OPC servers typically use the "poll/response," or so-called "pull"
architecture, to connect to Ethernet I/O devices, which involves an
HMI/SCADA system continuously sending out commands to collect
relevant data. Moxa's Active OPC Server Lite, with its non-polling
Dynamic IP/WAN Connection
Active OPC Server Lite and ioLogik products provide the flexibility
of configuring the ioLogik E1200 to use dynamic IP addresses. The
ioLogik E1200 connects directly to the Active OPC Server Lite instead
of being polled, which makes dynamic IP addressing and WAN Access
General OPC Server
Polls continuously
Active OPC Server
No polling required
3
Pull-based OPC Server
Local Network and Fixed IP Connection only
Push-based Active OPC Server
Router
architecture, supports the standard OPC protocol, but also offers active
(or "push") communication with Moxa's ioLogik series of Ethernet
I/O products to HMI/SCADA systems, providing instant I/O status
reports with "Active Tags." The event-driven active tags result in an I/O
response time that is 7 times faster than other OPC Server packages,
and results in an apparent 80% reduction in network traffic.
Critical Tests Say It Best Critical Tests Say It Best
Test 1: Network Traffic Comparison
This test used 32 ioLogik E2210 units with 640 DI/O points. As shown in the figure, Active Ethernet
I/O can save 80% on bandwidth consumption compared to passive Ethernet I/O.
Reduce Bandwidth Consumption by 80%
Active Ethernet I/O
Passive Ethernet I/O
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Test 2: I/O Status Response Time
This test used 128 ioLogik E2210 units with 2,560 I/O points. As shown in the figure, the active
architecture is 7 times better than the passive architecture in response time when the I/O status
changes.
7 Times Faster
Active Ethernet I/O
Passive Ethernet I/O
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to the Ethernet I/O device possible, and adds even greater flexibility by
allowing connections across firewalls. I/O devices for traditional data
acquisition applications are not capable of using this approach.
Remote I/O Remote I/O
Internet and Dynamic IP
Router
Connection
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Remote I/O
ioLogik
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