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1785-L40B | Allen-Bradley PLC-5/40 Processor (48K Words, DH+/RIO, Serial Communication)
- Regular price
- $2,349.00
- Sale price
- $2,349.00
- Regular price
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Product Description P/N: 1785-L40B
Description
The Allen-Bradley 1785-L40B is a PLC-5/40 controller designed for medium to large automation applications requiring high-capacity memory and flexible communication options. It provides 48K words of user memory and supports up to 2048 mixed I/O or complementary configurations of 2048 inputs plus 2048 outputs. With four DH+/Remote I/O channels and a configurable serial port, the 1785-L40B delivers robust connectivity for distributed control systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Category | PLCs/Machine Control |
| Part Number | 1785-L40B |
| Subcategory | PLC Module/Rack |
| Product Type | Programmable Logic Controller |
| Product Family | PLC-5 |
| Module Type | Standard Processor (PLC-5/40) |
| User Memory | 48 KWords |
| Battery | 1770-XYC |
| EEPROM Backup Option | Supports 1785-ME16/32/64/100 |
| Protected Memory | No |
| Power Supply Compatibility | 1771-P4S, P6S, P4S1, P6S1 |
| Max Total I/O | 2048 (any mix) or 2048 in + 2048 out (complementary) |
| Max Analog I/O | 2048 |
| Maximum I/O per Link | 32 |
| Max I/O Chassis (Total) | 61 |
| Max Universal Remote I/O Chassis | 32 per I/O link |
| I/O Scan Time per Rack | 10 ms @ 57.6 kbit/s; 7 ms @ 115.2 kbit/s; 3 ms @ 230.4 kbit/s |
| Communication Interfaces | 4 DH+/RIO channels, 1 serial port (RS-232-C/422-A/423-A) |
| Control Coprocessor Expansion Port | Yes |
| Backplane Current Load | 3.3 A |
| Power Dissipation | 17.3 W |
| Operating Temperature | 0…60°C |
| Non-Operating Temperature | –40…85°C |
Information About 1785-L40B
The 1785-L40B is part of the PLC-5 product family, offering a standard processor module designed for installation in 1771 series chassis configurations. Its architecture supports both local and extended networks, with capacity to address up to 29 PLC-5 racks when used with Remote I/O. The controller provides four independent DH+/RIO ports that can operate as adapters or scanners, accompanied by a serial communication channel configurable for RS-232-C, RS-422-A, or RS-423 standards. Typical applications include manufacturing systems, process control, material handling, and other automation deployments requiring extensive I/O, high memory availability, and multi-network communication capability.
Key Features:
- 48K Words User Memory: Supports large and complex control programs.
- Four DH+/RIO Ports: Allows independent network configurations for distributed control.
- Versatile Serial Communication: Configurable RS-232-C, RS-422-A, or RS-423 port for point-to-point connections.
- High I/O Capacity: Supports up to 2048 mixed I/O or 2048 input + 2048 output in complementary format.
- EEPROM Backup Option: Compatible with 1785-ME16/32/64/100 memory modules for non-volatile storage.
- Rack Compatibility: Designed for 1771-series chassis including 1771-A1B, A2B, A3B, A3B1, and A4B.
- Robust Environmental Ratings: Operates from 0–60°C with tested compliance to IEC temperature and shock standards.
- Reliable Processor Design: Part of the PLC-5/40 series known for long-term industrial performance.
The 1785-L40B delivers the reliability and precision required for large-scale PLC-5 automation and multi-network industrial control.
Description
The Allen-Bradley 1785-L40B is a PLC-5/40 controller designed for medium to large automation applications requiring high-capacity memory and flexible communication options. It provides 48K words of user memory and supports up to 2048 mixed I/O or complementary configurations of 2048 inputs plus 2048 outputs. With four DH+/Remote I/O channels and a configurable serial port, the 1785-L40B delivers robust connectivity for distributed control systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Category | PLCs/Machine Control |
| Part Number | 1785-L40B |
| Subcategory | PLC Module/Rack |
| Product Type | Programmable Logic Controller |
| Product Family | PLC-5 |
| Module Type | Standard Processor (PLC-5/40) |
| User Memory | 48 KWords |
| Battery | 1770-XYC |
| EEPROM Backup Option | Supports 1785-ME16/32/64/100 |
| Protected Memory | No |
| Power Supply Compatibility | 1771-P4S, P6S, P4S1, P6S1 |
| Max Total I/O | 2048 (any mix) or 2048 in + 2048 out (complementary) |
| Max Analog I/O | 2048 |
| Maximum I/O per Link | 32 |
| Max I/O Chassis (Total) | 61 |
| Max Universal Remote I/O Chassis | 32 per I/O link |
| I/O Scan Time per Rack | 10 ms @ 57.6 kbit/s; 7 ms @ 115.2 kbit/s; 3 ms @ 230.4 kbit/s |
| Communication Interfaces | 4 DH+/RIO channels, 1 serial port (RS-232-C/422-A/423-A) |
| Control Coprocessor Expansion Port | Yes |
| Backplane Current Load | 3.3 A |
| Power Dissipation | 17.3 W |
| Operating Temperature | 0…60°C |
| Non-Operating Temperature | –40…85°C |
Information About 1785-L40B
The 1785-L40B is part of the PLC-5 product family, offering a standard processor module designed for installation in 1771 series chassis configurations. Its architecture supports both local and extended networks, with capacity to address up to 29 PLC-5 racks when used with Remote I/O. The controller provides four independent DH+/RIO ports that can operate as adapters or scanners, accompanied by a serial communication channel configurable for RS-232-C, RS-422-A, or RS-423 standards. Typical applications include manufacturing systems, process control, material handling, and other automation deployments requiring extensive I/O, high memory availability, and multi-network communication capability.
Key Features:
- 48K Words User Memory: Supports large and complex control programs.
- Four DH+/RIO Ports: Allows independent network configurations for distributed control.
- Versatile Serial Communication: Configurable RS-232-C, RS-422-A, or RS-423 port for point-to-point connections.
- High I/O Capacity: Supports up to 2048 mixed I/O or 2048 input + 2048 output in complementary format.
- EEPROM Backup Option: Compatible with 1785-ME16/32/64/100 memory modules for non-volatile storage.
- Rack Compatibility: Designed for 1771-series chassis including 1771-A1B, A2B, A3B, A3B1, and A4B.
- Robust Environmental Ratings: Operates from 0–60°C with tested compliance to IEC temperature and shock standards.
- Reliable Processor Design: Part of the PLC-5/40 series known for long-term industrial performance.
The 1785-L40B delivers the reliability and precision required for large-scale PLC-5 automation and multi-network industrial control.