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1764-28BXB

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$3703

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3 Yr PDFsupply warranty

Refurbished

$730

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2 Yr PDFsupply warranty

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$590

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Other Available Revisions for the 1764-28BXB 1764-28BXB/A1764-28BXB/B

Common misspellings:
  • l764-28BXB
  • 176A-28BXB
  • 1764-2bBXB
  • 1764-288XB
  • 1764-28BX8
  • 176428BXB

Technical Specifications for 1764-28BXB

Manufacturer Rockwell Automation
Brand: Allen-Bradley
Product Family: MicroLogix 1500
Product Type: Base Unit
Part Number: 1764-28BXB
Compatible Processors:1764-LSP; 1764-LRP
Communication Port:One (1) 9-Pin Sub-D connector
Supported Protocols:DF1, DH485, MODBUS, ASCII
Power supply: 20.4 to 30V dc
Power Supply Inrush:4A for 150 ms
Number of Inputs:Eight (8) Standard 24V dc, Eight (8) Fast 24V dc
No. of Outputs:Six (6) Relay, and 2 isolated relays per unit, Four (4) Standard 24V dc FET, and Two (2) Fast 24V dc FET
Input Circuit Type:24V dc, sink/source
Input operating voltage:0-30VDC
Output Circuit Type:Relay
Operating Voltage range: 5-125VDC; 0-265VAC
Operating Temp:+0¡C to +55¡C (+32¡F to +131¡F) ambient
Storage Temp: -40¡C to +85¡C (-40¡F to +185¡F) ambient
Operating Humidity: 5% to 95% relative humidity (non-condensing)
The Allen-Bradley base unit with part number 1764-L28BXB provides installation means for the MicroLogix 1500 components. This base unit is compatible for use with MicroLogix 1500 processors specifically 1764-LSP and 1764-LRP. This base unit also contains the DIN rail mounting anchors and the panel mounting tabs for direct panel mounting. The communication port provide with this base unit is an 8-Pin mini DIN port, supporting DF1 Half and Full duplex, MODBUS master and slave, ASCII and DH485. Compatible communication cables for this communication port are 1761-CBL-PM02 Series C or later, 2707-NC8 Series B or later, 1761-CBL-HM02 Series C or later 2707-NC9 Series B or later,1761-CBL-AM00 Series C or later, 2707-NC10 Series B or later, 1761-CBL-AP00 Series C or later 2707-NC11 Series B or later,1761-CBL-PH02 Series A or later, and 1761-CBL-AH02 Series A or later. These communication cables may be locally fabricated. The default communication parameters are Baud Rate of 19.2 K, Parity set to none, Source ID (Node Address) set to 1, Control Line set to no handshaking, Error Detection set to CRC, Embedded Responses at auto detect, Duplicate Packet (Message) Detect enabled, ACK Timeout at 50 counts, NAK retries at 3 retries, ENQ retries at 3 retries and Stop Bits set to 1. Expansion modules compatible with this controller are Compact I/O modules. Depending on the controller, Eight (8) or Sixteen (16) modules may be installed with the base unit. Expansion banks along with the base unit may be installed horizontally or vertically. Communication to the base unit is accomplished using the 1769-CR1 or 1769-CR3 expansion module. End caps are also installed at the beginning and end modules to terminate the bus. The base unit has an operating temperature of +0¡C to +55¡C or +32¡F to +131¡F. Prevent excessive heat from building up within the enclosure by installing appropriate climate control components such as blowers and fans. Follow the required installation clearance of 2-inches on all sides of the controller to allow the adequate air flow. The integrated inputs with the base unit are Eight (8) Standard 24VDC and Eight (8) Fast 24VDC. With the fast input, the module is capable of being used in metering systems or high-speed counter applications. The embedded output channels are Six (6) Relay, and 2 isolated relays per unit, Four (4) Standard 24V dc FET, and Two (2) Fast 24V dc FET. With the variety of outputs, the controller may be used with different types of output devices. The operating frequency of the Fast input and output are 20kHz. Although this is a base unit, the controller must be defined in the hardware configuration using RSLogix 500 or RSLogix Micro programming software. The software also allows changing of the base unit, revision of the selected controller type, configuration of the embedded I/O and to carry out programming commands such as download, upload, forcing, change of controller state, communication configuration and other functionalities. accessory modules compatible for this base unit are Memory Module, Real-Time clock, Combination module of Real-time clock and memory module, Data Access Tool (DAT) and other passive accessories.
The Allen-Bradley 1764-L24BXB is a MicroLogix 1400 controller base. This base unit has a line power requirement of 24VDC. It has an integrated Eight (8) Standard 24V dc, Eight (8) Fast 24V dc, Six (6) Relay, and 2 isolated relays per unit, Four (4) Standard 24V dc FET, and Two (2) Fast 24V dc FET. This base unit serves as the common housing of the MicroLogix 1500 components.

F.A.Q for 1764-28BXB

Q: 1. What is the part number of the 1764-L28BXB?A: The battery used with this base unit is 1747-BA.
Q: 2. Does this base unit include an Ethernet communication port?A: No, Ethernet communication port is not available however, the RS232 port may use an Allen-Bradley 1761-NET-ENI or -ENIW for communication to Ethernet network.
Q: 3. What are the expansion I/O used with this base unit?A: Compatible expansion I/O are Compact I/O modules only. It also supports up to 1 bank of I/O.

PDFsupply Tech

The 1764-L24BXB is a MicroLogix base unit. Base units serve as housing which comprise of the embedded I/O channels and communication port. The main advantage of this base unit from other base unit is that the 1764-L24BXB has Two (2) fast output channels. Compared to the 1764-L24AWA which only has standard inputs, the 1764-L28BXB has more variety of I/O including an additional Four (4) input channels.


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