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Chapter 1
Introduction
This chapter provides an overview of the
EtherPoll's features and capabilities.
ongratulations on the purchase of your new EtherPoll. The
EtherPoll is a SCADA communications serial server that allows
multi-drop devices to use Ethernet LAN's. The EtherPoll
connects any async serial device through a LAN and between
LAN's via routers. The EtherPoll is designed specifically to
support asynchronous polling protocols, such as Poll Select,
Modbus, DNP, etc. These protocols are often error corrected,
and the EtherPoll allows these protocols to work through routed
LANs and over IP protocol networks. The EtherPoll uses the
UDP/IP protocol, allowing the necessary data connection over
a local LAN and across routed networks.
The EtherPoll functions independently of the device protocol,
allowing most 8 bit asynchronous protocols to be used with no
configuration changes.
The EtherPoll can receive data from any Serial device, convert
the data to a valid IP packet, and transmit that data over the
LAN/WAN. Serial devices can then be accessed from anywhere
on your LAN/WAN by any workstation computer using another
EtherPoll. Two EtherPolls may be used in “nailed-up” mode
to build a “RS-232 path” through the WAN/LAN.
Most EtherPolls are used with multi-drop SCADA RTUs;
although a pair of EtherPolls configured for point-to-point
C
Summary of Contents for EtherPoll
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