1 Introduction In This Chapter. . . .

Introduction
In This Chapter. . . .
— Manual Overview
— Ethernet Base Controller Overview
— Ethernet Standards
11
1--2
Introduction
Introduction
Manual Overview
Overview of this
Manual
This manual describes the installation and
operation of the Ethernet Base
Controller (EBC). You will find the
necessary information for configuring the
T1H--EBC or T1H--EBC100, installing the
module, and connecting the EBC to a
10Base-T or 100BaseT Ethernet network.
In this manual, the EBC designation is
used when the subject applies to both the
T1H--EBC and T1H--EBC100. Otherwise,
the specific part number will be listed.
Other Reference
Materials
You may find other technical manuals useful for your application. For technical
information related to your PC--based control software, your PC or other network
masters, please refer to the appropriate manual for that product.
• Terminator I/O Installation and I/O Manual (T1K--INST--M)
Who Should Read
This Manual
You will find this manual helpful for setup and installation if you have chosen to use
the following:
• Network master -- PC-based Control with embedded Ethernet I/O
drivers, KEPDirect EBC I/O Server or DirectLogic PLCs/WinPLC using
the Ethernet Remote Master (ERM) module
• Automationdirect Terminator I/O products
Installation and
Safety Guidelines
A familiarity with Ethernet communications and with the setup and installation of
industrial controls is helpful. An understanding of electrical codes is essential.
Technical Support
We strive to make our manuals the best in the industry. We rely on your feedback to
let us know if we are reaching our goal. If you cannot find the solution to your
particular application, or, if for any reason you need additional technical assistance,
please call us at
770--844--4200.
Our technical support group is glad to work with you in answering your questions.
They are available weekdays from 9:00 a.m. to 6:00 p.m. Eastern Time. We
encourage you to visit our site on the worldwide web where you can find technical
and nontechnical information about our products and our company.
http://www.automationdirect.com.
If you have a comment or question about any of our products, services, or manuals,
please fill out and return the ‘Suggestions’ card that was shipped with this manual.
Introduction
1--3
When you see the “exclamation mark” icon in the left-hand margin, the paragraph to
its immediate right will be a warning. This information could prevent injury, loss of
property, or even death.
Key Topics for
Each Chapter
The beginning of each chapter will list the
key topics that can be found in that chapter.
Introduction
When you see the “notepad” icon in the left-hand margin, the paragraph to its
immediate right will be a special note.
1
Installation and
Safety Guidelines
Introduction
1--4
Introduction
Ethernet Base Controller Overview
The Ethernet Base Controllers provide a low-cost, high-performance Ethernet link
between a network master controller and an Automationdirect Terminator I/O slave
system. Network masters include the DL205, DL405 DirectLogic PLCs and
WinPLCs using the Ethernet Remote Master module (ERM), and PCs using
PC--based control software that includes embedded Ethernet I/O drivers or through
a compatible OPC server. The T1H--EBC100 also supports the MODBUS TCP/IP
protocol.
The Ethernet Base Controller serves as an interface between the master control
system and the Terminator I/O modules. The control function is performed by the
master controller, not the EBC slave. The EBC is positioned immediately to the right
of the first power supply and communicates across the backplane to input and output
modules. The function of the EBC is to:
• process analog and digital input signals
• format the I/O signals to conform to the Ethernet standard
• transmit the signals to the network master
• receive and translate output signals from the network master
• distribute the output signals to the appropriate output module in the
base
Installation and
Safety Guidelines
I/O Values Stored
in Cache Memory
The EBC module continually scans all I/O and stores the most recent values in
cache memory. The cache memory contents are available to the master controller
as a block of data or by individual slot location. The EBC reads all channels of digital
and analog modules on each scan.
Typically, the network master will request all input and output values at the same time
from the EBC. The EBC passes the cache memory values for all channels of all input
and output modules. By using this method, very fast response times can be
achieved by the network master control system. Various master controllers with
EBC slaves are shown below.
Example EBC Systems: Various Masters with EBC Slaves
MODBUS TCP Masters
(T1H--EBC100)
DirectLogic PLC/
WinPLC with ERM
OR
OR
T1H--EBC
UDP/IP, IPX
10Mbps
PC--based Control System
Operator Interface
Serial
Ethernet
Hub
EBC
T1H--EBC100
TCP/IP, UDP/IP, IPX
MODBUS TCP
10/100Mbps
EBC
EBC
Introduction
Industry Standard
Ethernet
1--5
WARNING: For deterministic Ethernet communication you must use a dedicated
network of EBC modules connected to your master control system. The EBC
modules and the master controller must be the only devices on the network.
T1H--EBC/
T1H--EBC100
The EBC installs to the right of the
first power supply (see chapter 2
for basic installation steps). For
further information about installing
power supplies and I/O modules,
consult the Terminator I/O
Installation and I/O Manual
(T1K--INST--M).
RS--232
Serial Port
An RJ12 RS--232 serial port
on-board the EBC module allows
serial communication to an
operator interface device or other
serial device. See your master
controller
documentation
to
determine whether this EBC
feature is supported.
Installation and
Safety Guidelines
Important Note: The T1H--EBC100 is configured at the factory to look for a DHCP
(Dynamic Host Configuration Protocol) server at power up. Refer to Chapter 5 for
information on DHCP.
Introduction
The T1H--EBC module supports industry standard 10Base-T Ethernet communications.
It allows up to10Mbps transfer rates between your master controller and and your I/O.
The T1H--EBC100 module supports industry standard 10/100Base-T Ethernet
communications. It allows up to100Mbps transfer rates between your master controller
and your I/O.

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