plc networking basics - instructor's notes
DESCRIPTION
PLC Networking Basics powerpoint downloadable and with instructor's notes to give more detail. This learning project is networking 5 computers to one Controllogix PAC (advanced PLC) via WiFi. PLC/PAC are automation controllers in process and manufacturing industries primarily. Although PLC/PAC are also used to control all infrastructure and have many niche applications. This basic networking mini course may be of interest to Maintenance, Maintenance Technician, Electrician, Industrial Electrician, Electrical Technician, Electromechanic Technician, Engineer, Engineering, Industrial Engineer, Control Engineer, Plant Engineer, Manufacturing Engineer, Instrument Tech, E/I, SCADA Technician, Controls Specialist, Process Control Technician, Service Technician, Field Service Technician, I&C Team Leader, Electrical Contractors, PLC Instructors, Electrical Instructors, Industrial Technology Instructors, Production Support Technician, Lead Technician, DCS Engineer, DCS Administrator, Water Treatment Specialist, Master Technician, Utility Technician, Technologist, Production Mechanic, HVAC Mechanic, Maintenance Superintendent, Engineering Manager, Project Engineer, Production Supervisor, IT Manager, Facility Service Supervisor and others.TRANSCRIPT
1
Whenever working with networking Allen Bradley products, it is a good practice to
use Octal number system (no 8s or 9s). So you will notice our Laptop station
numbering in map above skips number 68 and 69. Also a good idea is to have
laptops in a separate group of address than ENBT cards. (As station numbers are
just for RSLinx, IP addresses use decimal numbering system.)
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2
Click on task bar and then ControlPanel
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5
Then click ok for this dialog box, and click done button on next dialog box.
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8
At command prompt, type “ping 192.168.1.3” or what ever address you have set up
in your ControlLogix program loaded in the processor (via RSLogix 5000) for your
ENBT card.
A successful ping will show the same number of packets received as was sent. (our
example 4 sent, 4 received). The Average time should be less than 1 millisecond.
(our example was <0ms)
If longer time was seen, or packets where lost, try another cable.
Commend prompt = C:\DOCUME~1\STEVE>
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You will find the required EDS files on BIN95.com USB Flash Drive we giveaway in
class. (EDS (Electronic Data Sheet)) They will be under the PLC5000 directory
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Note: Make sure “Look in subfolder” check box is checked, before clicking “Next
button of wizard or it may not find your EDS files. To make it easier, we have placed
only the ENBT EDS files in a folder “EDS” on the BIN95.com Flash Drive.
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So the step in this slide is to click “Next” button 3 times in a row, once for each of
the 3 dialog boxes that appear. Then click “Finish” on the 4th dialog box, then “Exit”
on the 5th dialog box. You are done installing EDS files.
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14
Use Station numbers (XX) and IP Addresses you mapped out in slide 1. (The
example above is for Student laptop #6 on network map.)
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Note: If you see a yellow question mark on the right instead of ENBT icon pictured
above, you did not properly install EDS files for ENBT.
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Access Wireless router via web browser. Type in original IP address (typically
192.168.0.1) Default user name is typically “admin”, passwords are “password” or
“admin”
In the default IP address the “0” (zero) we will refer to as the Channel. The ENBT
card and laptops where all set up in previous slides with channel 1 (like
192.168.1.3). So we want to change the Router TCP/IP from 0 to 1 also. So
wireless is on same channel.
Also while you are there, double check to make sure mask is the same as it was for
ENBT card and laptops (255.255.255.0) Changing channel from default can reduce
interference, increase speed and make a little more secure. But in an Industrial
environment (not a classroom like we are setting up here), you want to use the most
secure industrial network, security and protocols you can.
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In the Who Active dialog box, click on the “+” sign to the left of ENBT driver icon.
Click on the “+” sign next to 1756-ENBT
Click on the “+” sign next to 1756-A4/A (the rack)
Click on the Icon for 1756-L1/A (Logix 5550 processor)
Click “Go Online” button.
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Success !! If you see gears moving in the icon
Located on the left of status window with
path “ENBT ethernet\192.168.1.3\Backplane\0”
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For Videos: Go To http://www.youtube.com/watch?v=Au03psa9Vxk
For Test: Go To http://bin95.com/Employee-Training-Assessments/PLC-Training-
Assessment/PLC-Networking-Basics-Controllogix.php
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