 |
The Most SENSIBLE One-Piece
Automation Controller for a Small Machine!
What is EZTextPLC?
EZTextPLC is the most powerful combination of a
PLC and an Operator Interface in a very compact
package. It utilizes EZPLC’s base and thus capable
of all the features present in our EZPLC and uses
our ‘mix-match’ modular EZ I/O to deliver a truly
compact control.
Where does it make sense?
EZTextPLC can be used to configure a small
control system that requires a Text type display. It
eliminates the need to buy and install a PLC and
Operator Interface separately and thus reduces
the electrical panel space, makes the control
system extremely compact and cost effective.
With EZTextPLC starting at $349 for a 32 Digital
I/O system (16 Dig In/16 Dig Out), it is built to
compete in the market of Embedded controllers
without the hassle of "C" level programming or
proprietary microprocessor boards. EZTextPLC
uses EZ I/O modules for I/O (starting at $20 for
8 Digital Out!) which can be chosen from a large
variety of options including Analog I/O, High
Speed Counter, Relay, Thermocouple, RTD,
and AC/DC combo modules.
With PLC Performance You Will Find Only in
PLCs Costing Thousands More!
64k Byte User Memory
Most Micro PLCs have only a limited 8-16k memory. But not this souped
up PLC! Some of the things you can do with this 64k byte memory:
- Store 2000 Messages
- Store 500 20-Variable Recipes
- Collect 10,000 Four-Variable Data Points
32 Bit, 40 MHz RISC Processor
Dedicated to PLC Processing Only,
with a Separate Processor for HMI
The EZText PLC has two processors, one for handling the
PLC and its I/O, and another co-processor for handling the
HMI functions. Even though the two processors cost more,
we wanted to make sure that you have one of the fastest PLCs
on your machine. This Text Panel PLC rivals scantime
specifications of the fastest full-blown PLCs.
Configuration Screen
The EZText Enhanced programming software
is a Windows-based program. The EZ-to-use screens and
pull-down menus provide all tools you will need to select the
panel type, configure the PLC communications, create text
messages, etc. The EZText panels use simple addressing and bit
assignments.
Competitor text panels require extensive programming and
associated ladder logic to make the pushbuttons and LEDs
operable.
Configuring Pushbuttons and Leds
The configuration screen contains all of the information needed to configure
the pushbuttons and their associated LEDs. You can configure the pushbuttons
in three different ways: alternate, momentary, or alternate with PLC release
option. The associated LEDs, which can also operate totally independent of the
pushbutton action, can be triggered three ways: by the associated pushbutton,
by the PLC, or they can be made to flash by the pushbuttons. This screen also
allows the user to enter the associated PLC address. Once the address assignment
has been selected, all of the pushbutton and LED fields will be populated with
the associated bit assignments.
User Programmable Messages
There are two message types which can be displayed: local and
PLC. Local messages are displayed on the screen unless the PLC
triggers a PLC message, which overrides a local message..
When a PLC message is triggered, the PLC Message LED will
also be illuminated. The PLC message LED will remain on until the user
acknowledges the situation by pressing [esc] on the panel.
Advanced Instructions
32-bit Floating Point Calculations:
The EZPLC supports 32-bit floating point mathematical and logical
operations. The data options allow you to use signed or unsigned
integer data as well as floating point data type.
Data Conversion:
This instruction is meant to make ladder programming EZ and
flexible. You can copy the data in one register, convert its data type and
save it into another register without altering the ‘source’ register. The
data can be converted from binary to BCD or grey code or vice versa.
Move Block:
This instruction adds convenience to handling data inside the
ladder program. You can move blocks of memory. All you need to
specify is starting point of your source address, number of data
elements to move and starting point of destination memory address.
Along with Move Block, Fill Block and Move Table of Constants also
make life of a programmer much simpler.
String:
These instructions operate on ASCII string data type. You can Move
string data between registers, base rung power flow upon string
comparison and compute string length to store the length value in a
different register.
Subroutines:
Capability to use subroutines is a huge plus in EZPLC programming.
For large and complex programs, user can define many subroutines
and use them in the main ladder program. These subroutines can be
called from the main logic. Return instruction allows user to return to the
main logic at any step.
Drum Sequencer:
This is a time or event-based sequencer that updates up to 16
outputs per step, up to 16 steps. Time base of each count is user
defined and each step has its own counter. User can define an event to
trigger the count. The rung power flow is allowed after completion of all
the steps in a drum.
Marquee Instructions:
Now you don’t have to spend days to send signals to your marquee.
Send to marquee instruction allows you to communicate to the marquee
via ASCII strings. A unique message number is assigned to each
message in the message database. This instruction looks up the
message number, corresponding to the intended message to be
displayed and sends it to the marquee. User can define actions if a
message number cannot be found in the database.
Interrupt Routine:
This is how your EZPLC would process external events that require
"instantaneous" response. User can write a separate interrupt logic
routine. At the instance of an external event, the PLC would interrupt the
main logic, execute this interrupt logic on a priority, and scan
corresponding I/O. It would return to the main logic automatically after
processing the interrupt routine.
ASCII Instructions:
User can send/receive ASCII string data to/from any register in PLC
to a predefined serial port. User can also define the Control address
and character count of the source register. Similarly, user can send
ASCII string data to a Marquee directly from the main logic.
Bit Move Instructions:
Bit move instructions allow the user to move word data from a
register type memory address to a bit in a discrete memory location
and backward.
COMMUNICATIONS
Ethernet TCP/IP:
All EZTextPLC models are available with built-in high speed
Ethernet TCP/IP communication interface in addition to RS232
and RS422/485 communication ports. This interface allows
EZTextPLC to reside on a 10 Mbps TCP/IP network (10Base
T Ethernet) via an RJ45 port. Use Ethernet models for easy
Ethernet programming with 100 meters being the maximum
distance between two nodes. For distances greater then 100
meters repeaters can be used to extend the distance between any
two nodes.
DeviceNet Slave Module:
EZTextPLC models when ordered with built-in DeviceNet
Slave communication interface provide DeviceNet connectivity
in addition to RS232 and RS422/485 communication ports.
DeviceNet communication interface for EZTextPLC provides a
digital, multi-drop network that can be used for communicating
with DeviceNet enabled controllers and I/O devices. On
DeviceNet network every device acts as a node and allows
multiple communication hierarchies and prioritization of
messages. EZTextPLC with DeviceNet communication interface
can be configured in a master-slave control architecture as a
slave node and allows peer-peer communication. DeviceNet
control system provides a single point of connection both for
configuration and support for I/O as well as explicit messaging.
Profibus:
All EZTextPLC models are available with built-in Profibus
Slave communication interface in addition to RS232 and
RS422/485 communication ports. This gives EZTextPLC
the ability to link with a Profibus Master Controller.
Profibus is a vendor independent open field bus protocol
standard in manufacturing automation and process control.
It reduces hard-wiring costs and provides specifications for
information exchanged between nodes of a Profibus network.
This communication interface provides the ability to transfer
data between a Profibus master and EZTextPLC.The Profibus
communication interface also has an auto-detect feature for the
baud rate of the Profibus network.
SPECIFICATIONS
Local I/O: 32 for small models, 48 for large models
PLC Specifications: see detailed EZ Series PLC specs
Text Panel Specifications: see detailedEZ Series Text Panel specs
Product Dimensions (External):
Small (32 I/O): 7.418 x 5 x 2.587"
Large (48 I/O): 10.018 x 5 x 2.587"
|
|
|
|
† All dollar amounts on this site are shown in US currency.
Note: I/O modules not included.
Ordering Example: (1) EZ-220-PLC 2 x 20 character LCD text panel with built-in EZPLC, 4-slot base (32 I/O max), $269, (1) EZIO-4THIE I/O Module, 4 x Thermocouple IN (Types J, K, S, T) , $148, (1) EZIO-4DCI4DCOP I/O Module, 4 x 24Vdc IN, 4 x 24Vdc OUT (source), $20, (1) EZ-SERIES-PLC-EDIT Programming software for EZ Series TextPLC, $49, (1) EZP-PGMCBL RS232 Programming cable, $23, $269 + $148 + $20 + $49 + $23 = $509
|
|
|
|
|
| |
 |
|
|
|
|
 |
 |
 |
 |
Related Links -
Related Products
|
|
|
|
|
|
 |
|
|
|
|
 |
|
|
Keywords:automation sequence control hmi mmi plc controller programmable motion industrial plc ladder logic system scada industrial touch panel display screen operator interface analog digital i/o text panel
|
Back to top |
|
