MicroLogix 1200 Controllers

Product Overview

System Overview

The MicroLogix 1200/1762 system provides functionality between the MicroLogix 1000/1761 and MicroLogix 1500/1764 systems, using the proven MicroLogix and SLC family architecture. The 6K-word memory provides for a maximum program of 4K words and maximum data of 2K words with 100% data retention. An optional memory module provides program and data backup with program upload and download capability. The optional real-time clock enables time scheduling of control activities. The flash upgradeable operating system lets you upgrade system software without replacing hardware.



Benefits

• Small Footprint—The MicroLogix 1200 controller is designed to optimize panel space. Integrated packages just 90mm (3.54 in) high (110mm high including mounting tabs) and 110 or 160mm (4.33 or 6.30 in) wide include processor, embedded inputs and outputs, and power supply. Expansion I/O modules add only 40mm (1.57 in) each in width.
  
• Flexibility—A range of I/O and communication options let you configure a MicroLogix 1200 controller for a variety of applications:
  
  • 24 or 40 built-in I/O. The inputs are either 24V DC (sink or source) or 120V AC. Outputs are relay contact or FET.
    
  • Add up to 96 I/O in up to 6 digital and/or analog I/O modules (within the limits of power supply capacity, for a total of 136 I/O maximum).
    
• Wide range of communication options:
  
  • DF1 full- or half-duplex, DF1 Radio Modem, Modbus RTU slave and RTU master. Communication interface modules support DH-485, DeviceNet, and EtherNet/IP.
    
  • MicroLogix 1200R controllers also provide a Programming / HMI port with fixed communication parameters to provide an additional means to communicate to the controller.
    
• High Functionality—The MicroLogix 1200 / 1762 system provides powerful features that let you tackle tough applications:
  
  • 20k-Hz high-speed counter.
    
  • 20k-Hz PTO (Pulse Train Output) or PWM (Pulse Width Modulation).
    
  • 6K-word non-volatile memory (4K-word maximum program, 2K-word maximum data).
    
  • 4 interrupt inputs.
    
  • 4 latching inputs.
    
  • 2 built-in trim potentiometers.
    
  • optional memory, real-time clock, or memory/real-time clock module.
    
  • powerful instruction set with support for PID and ASCII.
    
  • uses RSLogix 500 programming software.
    
  • field-upgradeable flash operating system.
    
• Low Price—This compact but powerful control solution will fit well within your budget.
  

Product Design

The MicroLogix 1200 controller and expansion I/O modules provide a modular, rackless control system designed for ease of installation and maintenance. Each MicroLogix 1200 controller includes a processor, built-in I/O, and power supply. Expansion I/O modules install to the right of the controller. Cables built into the I/O modules provide connection to the adjacent I/O module or controller. Controllers and I/O modules can be mounted either on a panel or on a DIN-rail. I/O on both controller and expansion I/O modules have finger-safe terminal blocks to meet global safety standards. The 40-I/O controllers have removable terminal blocks to facilitate ease of wiring and maintenance.

• Four latching or pulse-catch inputs—Latching inputs let the controller capture and hold very brief (microsecond) signals for input processing.
  
• 20k Hz high-speed counter—The built-in independent high-speed counter uses 32-bit integers for extended range, features 8 modes of operation, and supports direct control of outputs independent of program scan.
  
• Programmable Limit Switch Function—The Programmable Limit Switch function allows you to configure the high-speed counter to operate as a programmable limit switch or rotary cam switch.
  
• Trim potentiometers—Two built-in 3/4-turn analog trim potentiometers with a digital output (range from 0 to 250) allow quick and easy adjustments of timers, counters, setpoints, and more.
  
• Program data security—Data file download protection lets a program be reloaded into the controller without overwriting protected data.
  
• Floating Point Data Files—You can create data files that can contain up to 256 IEEE-754 floating point values.
  
• Memory, real-time clock, or memory/real-time clock modules—Memory backup provides protection and transportability for programs and data. The real-time clock lets you easily solve time/date scheduling applications, and can be synchronized with an external source via a program instruction.
  
• Four interrupt inputs—Interrupt inputs let the controller scan a specific program file (subroutine) when an input condition is detected from a sensor or field device.
  

Operator Interfaces

Many Allen-Bradley operator interface products can be used with MicroLogix 1200 controllers. The PanelView 300 Micro operator interface is a small, low cost, easy-to-use operator interface that is designed for use with the MicroLogix 1200 controller.

Communication

MicroLogix 1200 controllers provide a built-in RS-232-C port. MicroLogix 1200R controllers provide an additional built-in RS-232-C port that supports DF1 Full Duplex protocol only. This second port lets you connect the controller to a computer running RSLogix 500 programming software or connect to an HMI device, such as a PanelView display, without removing the existing connection or requiring a network connection. The Channel 0 communication port available on all MicroLogix 1200 and 1200R controllers can be used for the following types of communication:

• RS-232-C—The built-in Channel 0 RS-232-C port supports DF1 full-duplex, DF1 half-duplex slave, new DH1 half-duplex master, DH-485, Modbus RTU slave and new Modbus RTU master protocols, report-by-exception, and peer-to-peer data exchange. This port can be used for direct connection of programming and operator interface devices (e.g. a personal computer), and supports dial-in remote programming.
  
• DeviceNet—You can connect the controller to a DeviceNet network of up to 64 devices through a DeviceNet Interface (catalog number 1761-NET-DNI). The DeviceNet interface provides slave I/O, peer-to-peer, and program upload/download capability.
  
• EtherNet/IP—You can connect the controller to an EtherNet/IP network through an EtherNet/IP-to-RS-232-C interface (catalog number 1761-NET-ENI). This module supports program monitoring and upload/download, data collection, and controller peer-to-peer communication. It can also send e-mail messages via SMTP and display status and configuration information through a built-in internet server.
  
• DH-485—You can connect the controller to a DH-485 network through an Advanced Interface Converter (catalog number 1761-NET-AIC). The DH-485 network may connect up to 32 devices.
  
• Modbus RTU slave and new Modbus master functionality available.
  
• New DF1 Radio Modem protocol—You can transmit data through DF1 Radio Modem protocol, an efficient way to transmit data. Each read/write transaction requires only one TX from initiator and one TX from the responder, so “key-ups” and power consumption are minimized. For more information see the MicroLogix 1200 Document Update, publication 1762-DU002 or the Instruction Set Reference Manual 1762-RM001.
  

Typical Configurations








Specifications

General Specifications

Cat. No.	1762-L24AWA 1762-L24AWAR	1762-L24BWA 1762-L24BWAR	1762-L24BXB 1762-L24BXBR	1762-L40AWA 1762-L40AWAR	1762-L40BWA 1762-L40BWAR	1762-L40BXB 1762-L40BXBR
Dimensions (HxWxD), Approx.	90 x 110 x 87mm (3.54 x 4.33 x 3.43 in)¬			90 x 160 x 87mm (3.54 x 6.30 x 3.43 in)¬
Weight	0.9 kg (2.0 lb)			1.1 kg (2.4 lb)
Input Voltage Range	85…265V AC @ 47…63 Hz		20.4…26.4V DC	85…265V AC @ 47…63 Hz		20.4…26.4V DC
Input Voltage, Nom.	100/120V AC, 200/240V AC		24V DC	100/120V AC, 200/240V AC		24V DC
Apparent Input Power, Max.	68 VA	70 VA	27 VA	80 VA	82 VA	40 VA
Real Input Power, Max.	29W	31W	27W	37W	38W	37W
Power Supply Maximum Inrush	25A for 8 ms @ 120V AC 40A for 4 ms @ 240V AC		15A for 20 ms @ 24V DC	25A for 8 ms @ 120V AC 40A for 4 ms @ 240V AC		15A for 20 ms @ 24V DC
Power Supply Output	400 mA @ 5V DC 350 mA @ 24V DC	400 mA @ 5V DCT  350 mA @ 24V DCT	400 mA @ 5V DC 350 mA @ 24V DC	600 mA @ 5V DC 500 mA @ 24V DC	600 mA @ 5V DC‡  500 mA @ 24V DC‡	600 mA @ 5V DC 500 mA @ 24V DC
User Output Power	—	24V DC @ 250 mAT  400 mF max.	—	—	24V DC @ 400 mA‡  400 mF max.	—
Temperature, operating	0…55 °C (32…131 °F) ambient
Temperature, nonoperating	-40…85 °C (-40…185 °F) ambient
Operating Humidity	5…95% (without condensation)
Vibration
Operating	10…500 Hz, 5 g, 0.030 in max. peak-to-peak
Relay Operation	1.5 g
Shock
Shock, operating	30 g
Shock, Relay Operation	7 g
Shock, nonoperating	50 g panel mounted, 40g DIN rail mounted
Agency Certification	• UL 508 • C-UL under CSA C22.2 no. 142 • Class I, Div. 2, Groups A, B, D, B (UL 1604, C-UL under CSA C22.2 no. 213) • CE/C-Tick compliant for all applicable directives/acts.
Electrical/EMC	The controller has passed testing at the following levels: • IEC1000-4-2: 4 kV contact, 8 kV air, 4 kV indirect • IEC1000-4-3: 10V/m • IEC1000-4-4: 2 kV, 5 kHz; communication cable: 1 kV, 5 kHz • IEC1000-4-5: communication cable 1 kV DM (differential mode) • I/O: 2 kV CM (common mode), 2 kV DM (differential mode) • Power Supply: 4 kV CM (common mode), 2 kV DM (differential mode) • IEC1000-4-6: 10V, communication cable 3V§
¬ Height = 104 mm (4.09 in) with DIN latch open. T Total load of the 5V, 24V, and user power output shall not exceed 12W. ‡ Total load of the 5V, 24V, and user power output shall not exceed 16W. § Conducted immunity frequency range may be 150 kHz to 30 MHz if the radiated immunity frequency range is 30 MHz to 1000 MHz.

MicroLogix 1200 Controllers

The MicroLogix 1200 controller is available with 24 or 40 built-in I/O. Controllers with 24V DC inputs that also have AC -input power supplies include a built-in power supply for user output power.

Cat. No.	Number of I/O	Input Type	Input Signal Delay	Output Type	Continuous Output Current, Max.	User Output Power
1762-L24BWA 1762-L24BWAR	14 inputs 10 outputs	24V DC sink or source	Selectable: 0.025, 0.075, 0.1, 0.25, 0.5, 1, 2, 4, 8, or 16 ms	Relay Contact	(See relay contact output specs.) • 8A/common • 30A total @ 150V AC • 20A total @ 240V AC	24V DC @ 250 mA
1762-L40BWA 1762-L40BWAR	24 inputs 16 outputs					24V DC @ 400 mA
1762-L24BXB 1762-L24BXBR	14 inputs 10 outputs			5 Relay 5 FET (24V DC)	(See FET and relay contact output specs.) • 7.5A/common • 30A total @ 150V AC • 20A total @ 240V AC	—
1762-L40BXB 1762-L40BXBR	24 inputs 16 outputs			8 Relay 8 FET (24V DC)	(See FET and relay contact output specs.) • 8A/common • 30A total @ 150V AC • 20A total @ 240V AC
1762-L24AWA 1762-L24AWAR	14 inputs 10 outputs	120V AC	On: 2…20 ms Off: 10…20 ms	Relay Contact
1762-L40AWA 1762-L40AWAR	24 inputs 16 outputs

Input Specifications

Cat. No.	1762-L24AWA, 1762-L40AWA 1762-L24AWAR, 1762-L40AWAR	1762-L24BWA, 1762-L24BXB, 1762-L40BWA, 1762-L40BXB 1762-L24BWAR, 1762-L24BXBR, 1762-L40BWAR, 1762-L40BXBR
		Inputs 0 to 3	Inputs 4 and up
On-State Voltage Range	79…132V AC	14…26.4V DC @ 55 °C (131 °F) 14…30.0V DC @ 30 °C (86 °F)	10…26V DC @ 55 °C (131 °F) 10…30.0V DC @ 30 °C (86 °F)
Off-State Voltage Range	0…20V AC	0…5V DC
Operating Frequency	47…63 Hz	0…20 kHz	0…1 kHz (depends on scan time)
On-State Current
Minimum	5.0 mA @ 79V AC	2.5 mA @ 14V DC	2.0 mA @ 10V DC
Nominal	12 mA @ 120V AC	7.3 mA @ 24V DC	8.9 mA @ 24V DC
Maximum	16.0 mA @ 132V AC	12.0 mA @ 30V DC	12.0 mA @ 30V DC
Off-State Leakage Current, Max.	2.5 mA	1.5 mA
Impedance, Nom.	12 kW @ 50 Hz 10 kW @ 60 Hz	3.3 kW	2.7 kW
Inrush Current	250 mA	—	—

Relay Contact Output Specifications

Maximum Voltage	Current			Apparent Power
	Make	Break	Continuous	Make	Break
240V AC	7.5A	0.75A	2.5A	1800 VA	180 VA
120V AC	15A	1.5A	2.5A
125V DC	0.22A		1.0A	28 VA
24V DC	1.2A		2.0A

FET Output Specifications

Cat. No.	1762-L24BXB, 1762-L24BXBR, 1762-L40BXB, 1762-L40BXBR
	General Operation	High-Speed Operation¬  (Output 2 Only)
On-State Voltage Drop
at maximum load current	1V DC	—
at maximum surge current	2.5V DC
Current Rating per Output
maximum load	1.5A @ 30 °C (86 °F), 1.0A @ 55 °C (131 °F)	100 mA
minimum load	1.0 mA	10 mA
maximum leakage	1.0 mA	1.0 mA
Turn-On Time, Max.	0.1 ms	6 ms
Turn-Off Time, Max.	1.0 ms	18 ms
Repeatability, Max.	—	2 ms
Drift, Max.	—	1s per 5 °C (9 °F)
¬ Output 2 has increased functionality over the other FET outputs. Output 2 can be used as the other FET outputs. But, in addition, within a limited current range, it may be operated at a higher speed. Output 2 also provides a pulse train output (PTO) or pulse width modulation output (PWM) function.