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1761-L32BBB
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Product Description
The Allen-Bradley 1761-L32BBB is a MicroLogix 1000 Controller. This controller is designed for Power Supply input voltage of 24VDC with embedded Twenty (20) 24VDC discrete inputs, Two (2) Relay, Ten (10) MOSFET Outputs with One (1) 6.6 kHz High-Speed input channel. This controller has One (1) RS232 8-Pin mini DIN communication port that supports DF1 protocol.Other Available Revisions for the 1761-L32BBB 1761-L32BBB//A1761-L32BBB//B1761-L32BBB//C1761-L32BBB//D1761-L32BBB//E
Common misspellings:
- l761-L32BBB
- 176l-L32BBB
- 1761-132BBB
- 1761-L328BB
- 1761-L32B8B
- 1761-L32BB8
- 1761L32BBB
Technical Specifications for 1761-L32BBB
| Manufacturer: | Rockwell Automation |
|---|---|
| Brand: | Allen-Bradley |
| Product Family: | MicroLogix |
| Product Type: | Controller / Processor |
| Part Number: | 1761-L32BBB |
| Number of I/O: | 32 |
| Number of Inputs: | 20 (sinking and sourcing) |
| Input Operating Range: | 14É26.4V DC max @ 55 ¡C (131 ¡F) 14É30.0V DC max @ 30 ¡C (86 ¡F) |
| Input Signal Delay: | standard inputs: selectable from 0.5 to 16 ms high-speed inputs: selectable from 0.075 to 16 ms |
| Number of outputs: | 10 MOSFET; 2 (Relay) |
| Relay Output operating range: | 5 - 125V DC / 5 - 264V AC |
| MOSFET output operating Range: | 20.4 - 26.4V DC |
| Output Signal Delay: | 10 ms |
| Power supply: | 20.4Ð26.4V dc |
| Nominal supply input | 24VDC |
| Inrush current: | 30A for 4 ms |
| Power cycles: | 50,000 minimum |
| Memory: | 1 K EEPROM composed of approximately 737 instruction words and 437 data words. |
| Communication port: | RS232 |
| Protocol: | DF1 |
| Communication Cable: | 1761-CBL-PM02 or 1761-CBL-HM02 |
About 1761-L32BBB
The MicroLogix 1000 1761-L32BBB is a compact, non-expandable Programmable Logic Controller (PLC) that belongs to the MicroLogix 1000 product family. This controller is fitted with an non-volatile EEPROM memory amounting to 1KB. EEPROM means Electrically Erasable Programmable Read Only Memory (EEPROM). This memory module is battery independent and capable of retaining data without battery charge. Data may only be erased if a specific voltage level is applied to the particular pins of the memory chip. The integrated memory is pre-allocated for 737 instruction words and 437 Data Words. Being a compact controller, the 1761-L32BBB has embedded Twenty (20) discrete input channels operating at 20.4-26.4 VDC voltage range. These input channels support sourcing and sinking configuration. Is also has Ten (10) MOSFET sourcing outputs with voltage range f 20.4-26.4 VDC, continuous current per point of 1.0 A @ 55 ¡C (131 ¡F) or 1.5 A @ 30 ¡C (86 ¡F) while continuous current per common of 6A. It also has Two (2) Relay outputs that may be operated in 24-125VDC or 120/240 VAC. If operated with 24VDC voltage, continuous current is 2A, for 125VDC 1A and 2.5A for 120/240VAC. MicroLogix 1000 with DC rated inputs has a single channel High-speed input compatible for switching devices, actuating at a frequency of 6.6 Khz switching frequency. This channel may be used to integrate sensors for production in counting in the factory floor or metering applications in the process industry. This controller is powered by an external source with nominal supply input of 24VDC with operating voltage of 20.4Ð26.4V dc. This controllerÕs typical throughput is 1.5 ms for a 500-instruction program. Alternatively, this MicroLogix 1000 supports a hend-Held Programmer with part number 1761-HHP-B30. The 1761-L32BBB is provided with a physical RS232 communication port that requires an 8-Pin mini DIN connector. Compatible Allen-Bradley pre-fabricated cables compatible for this controller are 1761-CBL-PM02 or 1761-CBL-HM02. This communication cables may also be user-supplied provided that the specific cable configuration or pinouts are followed. The communication channel is configurable for DF1 protocol with default settings of 9600 Baud Rate, Node Address 1 that is configurable for 0-254, No Parity, Stop Bits at 1, Error Detection set to CRC, DLE NAK to N Retries, DLE ENQ to N Retries, ACKnowledgement Timeout to 1s, Duplicate Packet Detection to Enabled, Control Line No handshaking, Embedded response to enabled. The embedded port also supports MODBUS RTU slave protocol where up to 254 devices may be connected. This is a practical and cost-effective solution for implementing Substation automation of Power metering application as it can directly communicate and exchange data between Power Meters and Intelligent Electronic Devices (IED).F.A.Q for 1761-L32BBB
| Q: 1. What is the operating frequency of the High-speed input channel? | A: The operating frequency of the high-speed input channel is 6.6 kHz. |
|---|---|
| Q: 2. What is the part number of battery backup used for this controller? | A: This MicroLogix controller does not use a battery backup to store data. The internal memory is an EEPROM non-volatile memory type. |
| Q: 3. Is this controller expandable? | A: No, the controllerÕs hardware is a fixed style hardware. It cannot be installed with expansion modules. |
PDFsupply Tech
The 1761-L32BBB is a MicroLogix 1000 controller that has a non-expandable hardware. This hardware is one of MicroLogix controllers with the highest I/O channel density as it has a total of 32 I/Os including a single channel high-speed input. If compared to the 1761-L32AWA, the I/O densities are same however, the 1761-L32AWA has no high-speed input channels. This channel enables the capability of the controller to be used in applications with high-speed counting or totalizing application. With the 1761-L32BBB supporting this type of input, it can be used in counting and metering applications.
