Showing posts with label allen bradley plc. Show all posts
Showing posts with label allen bradley plc. Show all posts

Thursday, 30 October 2014

Key switch for Allen Bradley PLC

The SLC 5/03, SLC 5/04, and SLC 5/05 processors include a 3-position Key Switch on the front panel that lets you select one of three modes of operation: Run, Program, and Remote. You can
remove the key in each of the three positions.

Note : The SLC 5/01 and SLC 5/02 processors do not have a Key Switch. Therefore, all modes must be changed via the communication channels.

 

This position places the processor in the Run mode. The processor
scans/executes the ladder program, monitors input devices, energizes
output devices, and acts on enabled I/O forces. You can only change
the processor mode by changing the Key Switch position. You cannot
perform online program editing.
To change the processor mode to Run, toggle the Key Switch from
PROG or REM to RUN. When the Key Switch is left in the RUN
position, you cannot use a programmer/operator interface device to
change the processor mode.

PROG Position

This position places the processor in the Program mode. The
processor does not scan/execute the ladder program, and the
controller outputs are de-energized. You can perform online
program editing. You can only change the processor mode by
changing the Key Switch position.

To change the processor mode to Program, toggle the Key Switch
from REM or RUN to PROG. When the Key Switch is left in the
PROG position, you cannot use a programmer/operator interface
device to change the processor mode.

REM Position

This position places the processor in the Remote mode: either the
REMote Run, REMote Program, or REMote Test mode. You can
change the processor mode by changing the Key Switch position or by
changing the mode from a programmer/operator interface device.
You can perform online program editing in this position.
To change the processor mode to REM, toggle the Key Switch from
RUN or PROG to REM. When the Key Switch is in the REM position,
you can use a programmer/operator interface device to change the
processor mode.

Monday, 13 October 2014

Learn Allen Bradley PLC Programming | Sofcontraining.com

 FLEX LOGIX CONTROLLER SYSTEM COMPONENTS IDENTIFICATION


I: FlexLogix Platform

For distributed-control:
• (i.e., control platform is located at or close to the process/machine).
• Allows application to be simplified by dividing it.


This system has the following characteristics:
• Reduced size for smaller spaces
• Can be mounted on a DIN rail or panels
• Can be mounted vertically or horizontally
• Modular


FlexLogix Hardware



II. Flex Logix Main Component


FlexLogix Main Component

Flex Logix Features:
• 64 Kbyte (1794-L33) and 512 Kbyte (1794-L34) fixed memory:
• 1794-L33/A and 1794-L34/B support non-volatile memory to retain project without a battery
• Two communications slots installed in controller
• Support for NetLinx™ networks:
  – EtherNet/IP
  – DeviceNet
  – ControlNet


FlexLogix I/O placed on DIN rail:
• Supports one or two banks
  – (up to 8 local I/O modules and 8 extended local I/O modules)
Flex IOs

FlexLogix I/O placed on DIN rail:
• Extended local I/O modules can be located 1 to 3 m from local I/O
• FlexLogix systems support up to 512 I/O points

NOTE: FLEXLOGIX BANKS CAN EXTEND UP TO 10 FT. (3 METERS) WHEN USING EXTENDER CABLE.

III. FLEX LOGIX COMMUNICATION.
Connected directly to the controller in the daughtercard slots:



Easy Learn Allen Bradley PLC Programming

RSLOGIX 5000 SOFTWARE COMPONENTS


I: RSLogix 5000 Programming Software.

Tip: Because all Logix5000 platforms have

All ControLogix, FlexLogix, and CompactLogix PLC types used common control engine, RSLogix 5000 software is used to program and configure all Logix5000 systems.

Used to perform the following tasks:
• Develop and modify code
  – (e.g., ladder logic, function block diagrams, Structured Text etc.)
• Monitor project and system component operation during operation
• Configure hardware modules (communication module, I/O module, etc..)



II. RSLogix 5000 Software Advantage.

RSLogix 5000 software offers the following benefits:
• Flexible, easy-to-use, Windows®-based editors and components
• I/O configuration wizards
• Ability to copy and paste components between projects
• Same look and feel as RSLogix 5 and RSLogix 500 software:
   – Ladder logic instruction set built on PLC® instruction set
• Multiple programming language options
   – ladder logic, function block diagram, sequential function chart, and structured text.
• Your configuration will depend on the language options selected and installed.


III. RSLogix 5000 Software Windows.

Main Screen at Default Configuration
1. Toolbars
2. Controller Organizer
3. Routine Editor / Tags Window
4. Results Window


IV. RSLogix 5000 Toolbars.

Following toolbars are available:
• Standard toolbar
• Online toolbar
• Path toolbar
• Language Element toolbar


Standard Toolbar: Standard Microsoft options:
• New
• Save
• Cut
• Copy
• Paste
• And more


Standard Toolbar

Online Toolbar: toolbar that provides controller status. Tab/drop-down lists are available for viewing related information:


Online Toolbar


Path Toolbar: toolbar specifically used for communicating with controller and viewing communication status:



Path Toolbar Screen


Language Element Toolbar: toolbar containing programming elements, grouped by tabs, for entry into an active routine. Each language has its own element toolbar:


Language Element Toolbar

V. Controller Organizer


Controller Organizer
 
Above is showing the Expanded Branch/TASK,  Main Routine, and Sub-Routine in hierarchy.

NOTE: THE CONTROLLER ORGANISER CAN BE OPENED OR CLOSED BY USING THE TOGGLE ORGANISER WINDOW BUTTON.

Routine Editor/Tags Window: Displays open routine or tags collection opened through Controller Organizer:

Routine Editor Tags Window




Results Window: window at bottom of main window that contains the following tabs:

Results Tabs
• Errors tab: Results of verification for errors in the project
• Search Results tab: Results of a search for a project component
• Watch tab: Window for viewing data in an open routine