02 AB controllogix PLC hardware concept Training PLC Allen Bradley
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DAY 1
SESSION 2
2-1
AB CONTROLLOGIX PLC’S HARDWARE
CONCEPT
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
I/O COMPONENTS (1)
The ControlLogix controller provides a scalable controller
solution that is capable of addressing a large amount of I/O
points.
The ControlLogix controller can be placed into any slot of a
ControlLogix I/O chassis and multiple controllers can be installed
in the same chassis.
CPU
I/O Modul di Chassis
Power Supply
2
3
4
Chassis/Rack
2-2
1
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-3
I/O COMPONENTS (2)
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
I/O CHASSIS (1)
• The ControlLogix system is a modular system that requires a
1756 I/O chassis.
• Chassis are available in sizes of 4, 7, 10, 13, and 17 module
slots.
• The backplane provides a high-speed communication path
between modules.
2-4
• Multiple controller modules on the backplane can pass
messages between one another.
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-5
I/O CHASSIS (2)
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-6
TECHNICAL SPECIFICATIONS - 1756
CHASSIS
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
1771 POWER SUPPLY
2-7
ControlLogix power supplies are used with the 1756 chassis to
provide 1.2V, 3.3V, 5V, and 24V DC power directly to the chassis
backplane.
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-8
TECHNICAL SPECIFICATIONS - 1756
CONTROLLOGIX CONTROLLERS
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-9
1756 CONTROLLOGIX
CONTROLLERS FEATURES
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
KEY SWITCH
RUN
• Executing logic program ladder
and generating output
• Avoid user from program
editing
REM
RUN
R
E
M
PROG
• Logic program can not be scan
or run
• Allow to editing offline
2-10
PROG
• Allow to change
programmer/operator interface
mode
• Allow to online editing
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
I/O MODULE
• Digital Input Module
• Digital Output Module
• Analog Input Module
• Analog Output Module
• Intelligent Module
2-11
• Communication Modules
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
DIGITAL/DISCRETE SIGNAL TYPES
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Selector switches
Temperature switches
Flow switches
Level switches
Valve position switches
Starter auxiliary contacts
Pushbuttons
Motor starter contacts
Limit switches
Pressure switches
Hand switches
Proximity switches
Relay contacts
Photoelectric sensors
AB ControlLogix PLC’s Hardware Concept
OUTPUTS:
•
•
•
•
•
•
•
•
•
•
Annunciators
Alarm lights
Electric control relays
Electric fans
Indicating lights
Electric valves
Alarm horns
Selenoid valves
Motor starters
Heater starters
2-12
INPUTS:
6 – 10 December 2010
ANALOG DEVICES
• Flow transmitters
• Pressure transmitters
• Temperature
transmitters
• Analytical transmitters
• Position transmitters
• Potentiometers
• Level transmitters
• Speed instruments
AB ControlLogix PLC’s Hardware Concept
OUTPUTS:
• Electric motor drives
• Analog meters
• Chart data recorders
• Process controllers
• Current-to-pneumatic
transducers
• Electrical-operated
valve
• Variable speed drives
2-13
INPUTS:
6 – 10 December 2010
2-14
JIC WIRING SYMBOLS
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-15
TYPES OF CONTROLLOGIX DIGITAL
I/O MODULES
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-16
TYPES OF CONTROLLOGIX DIGITAL I/O
MODULES (2)
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-17
TYPES OF CONTROLLOGIX ANALOG
I/O MODULES
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-18
CONTROLLOGIX DIGITAL I/O
MODULES
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-19
TYPICAL DIGITAL AC INPUT
WIRING
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-20
TYPICAL DIGITAL AC OUTPUT
WIRING
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-21
TYPICAL DIGITAL DC INPUT
WIRING
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-22
TYPICAL DIGITAL DC OUTPUT
WIRING
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
2-23
REFERENCE CIRCUIT
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
1756 ANALOG INPUT MODULES
FEATURES
• On-board data alarming
• Scaling to engineering units
• Real-time channel sampling
2-24
• Data Format: Integer mode (left justified, 2s complement) IEEE
32-bit floating point
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
ANALOG INPUT MODULE
Single-ended
Differential
Current (0-20 mA)
Voltage (1-5 V)
High tinggi to
avoid signal load
2-25
Filter Circuit
AB ControlLogix PLC’s Hardware Concept
6 – 10 December 2010
