1761-L20BWB-5A

Urgent Automation is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply.

Product comes with Urgent Automation's 1-year warranty.

Rated 4.5 with 11 reviews

Rockwell Disclaimer: The product is used surplus. Urgent Automation is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Urgent Automation is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Urgent Automation makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Urgent Automation also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Urgent Automation also makes no representations as to your right to install any such firmware on the product. Urgent Automation will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.


1761-L20BWB-5A

Description: The 1761-L20BWB-5A is an MicroLogix Controller under the Bulletin 1761 product family. It has supports discrete and analog input with RS232 communication port.

Urgent Automation is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply.

Product comes with Urgent Automation's 1-year warranty.


Description: The 1761-L20BWB-5A is an MicroLogix Controller under the Bulletin 1761 product family. It has supports discrete and analog input with RS232 communication port.


Rated 4.5 with 11 reviews







About 1761-L20BWB-5A

The Allen-Bradley 1761-L20BWB-5A is an obsolete MicroLogix 1000 controller. It is a small and compact controller that requires minimum space requirements. The controller has an RS232 port supporting DF1 protocol for communicating to external systems and devices. DF1 is designed for peer-to-peer connection but it can be enabled to connect to a network such as DH485 with the use 1761-NET-AIC. These communication protocol supports high-speed communication over a distance, controller messaging in half-duplex slave or Full duplex mode for connection to HMI, SCADA applications, connection to a programming workstation for program upload and download, Isolator, gateways and signal conditioner. The controller has an internal memory of 1K-word EEPROM. It has a relatively fast scan time of 2ms and I/O scan time of 0.21ms. It can be used with a maximum of 32 counters and 40 timers. Logic program is made with RSLogix500 software, an IEC 61131-3 compliant software that support ladder logic programming. It can also be configured using the MicroLogix 1000 Hand Held Programmer (HHP). The controller is capable of having more than 65 instructions for applications like high-speed counting, sequencing, and shift registers. The 1761-L20BWB-5A controller has 25 I/O with 24V DC sink/source power for 12 inputs, 2 voltages (±10V) and 2 current (0 - 20mA) analog inputs, 2 contact outputs, and 1 voltage/current (0 - 10V, 4 - 20 mA) analog output. It has a real input power of 7W at 24V DC. It has 1500V AC isolation voltage and a The controller is intended for use in a category II non-hazardous industrial environment with a 0 - 55 °C (32 - 131 °F) operating temperature and a 20g maximum operating shock.

Technical specifications:


Manufacturer: Rockwell Automation
Brand: Allen-Bradley
Product Family: MicroLogix
Product Type: Compact Controller
Part Number: 1761- L20BWA-5A
Number of I/O: 25
Number of Discrete Inputs:12 DC Input
Number of Analog Inputs:4 Current /Voltage
Number of Analog output:1 Current / Voltage
Power supply: 20.4-26.4Vdc
Isolation Voltage:1500 VAC
Power cycles:50,000 minimum
Memory:1 K EEPROM composed of approximately 737 instruction words and 437 data words.
Communication port: RS232 (DF1)
Manufacturer: Rockwell Automation
Brand: Allen-Bradley
Product Family: MicroLogix
Product Type: Compact Controller
Part Number: 1761- L20BWA-5A
Number of I/O: 25
Number of Discrete Inputs:12 DC Input
Number of Analog Inputs:4 Current /Voltage
Number of Analog output:1 Current / Voltage
Power supply: 20.4-26.4Vdc
Isolation Voltage:1500 VAC
Power cycles:50,000 minimum
Memory:1 K EEPROM composed of approximately 737 instruction words and 437 data words.
Communication port: RS232 (DF1)
Common misspellings:
  • l761-L20BWB-5A
  • 176l-L20BWB-5A
  • 1761-120BWB-5A
  • 1761-L2oBWB-5A
  • 1761-L208WB-5A
  • 1761-L20BW8-5A