Allen-Bradley 1785-L30B PLC-5/30 Processor Controller
$123.00
$320.00
Description
Product Description
The 1785-L30B processor module from Allen-Bradley is a PLC-5/30 programmable controller designed for medium to large-scale industrial automation systems requiring reliable discrete and analog I/O management. As part of the PLC-5 family, this controller combines integrated communication capability, expandable remote I/O architecture, and battery-backed memory retention for continuous process control applications.
The Allen-Bradley 1785-L30B supports up to 32K words of user memory and accommodates high-capacity I/O configurations across local and remote chassis installations. Integrated communication interfaces include dual DH+/Remote I/O channels and a configurable serial communication port supporting RS-232, RS-422A, and RS-423 standards.
This processor is commonly deployed in manufacturing lines, process plants, utility systems, and legacy PLC-5 automation upgrades where dependable controller performance and broad network compatibility are required.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen-Bradley |
| Model Number | 1785-L30B |
| Processor Series | PLC-5/30 |
| Product Type | Programmable Logic Controller |
| Processor Category | Standard Processor |
| User Memory Capacity | 32K words SRAM |
| Memory Retention | Battery-backed static RAM |
| EEPROM Backup Support | 1785-ME16, 1785-ME32, 1785-ME64, 1785-M100 |
| Maximum Total I/O | 1024 any mix or 1024 inputs + 1024 outputs |
| Maximum Analog I/O | 1024 points |
| Embedded Communication Ports | 2 DH+/Remote I/O channels |
| Serial Communication | 1 configurable RS-232/RS-422A/RS-423 port |
| Remote I/O Chassis Support | Up to 12 chassis |
| Maximum Total I/O Chassis | 29 chassis |
| Universal Remote I/O Chassis | 28 |
| Extended Local Chassis | 0 |
| Maximum I/O Racks | 4 racks |
| I/O Scan Time | 10 ms at 57.6 kbps |
| Faster I/O Scan Rates | 7 ms at 115.2 kbps, 3 ms at 230.4 kbps |
| Backplane Current Requirement | 2.3 A at 5 VDC |
| Typical Power Dissipation | 12 W |
| Compatible Power Supplies | 1771-P4S, 1771-P6S, 1771-P4S1, 1771-P6S1 |
| Battery Type | 1770-XYC |
| Coprocessor Expansion Port | Supported |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Weight | 1.25 kg |
Communication and System Features
The 1785-L30B controller provides integrated industrial networking functions for PLC-5 architectures requiring communication with distributed I/O systems, HMIs, and supervisory networks.
Key features include:
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Dual DH+ and Remote I/O communication channels
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Configurable serial communication interface
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Support for large distributed I/O installations
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Battery-backed memory protection
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EEPROM program backup capability
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Rack-based PLC-5 architecture compatibility
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High-capacity analog and discrete I/O handling
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Expansion support for control coprocessor modules
Typical Applications
The 1785-L30B processor is commonly installed in legacy and active PLC-5 control systems across multiple industries.
Typical applications include:
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Manufacturing automation systems
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Material handling equipment
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Water treatment facilities
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Packaging machinery
-
Process control systems
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Automotive production lines
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Plant-wide remote I/O control
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Industrial retrofit projects
FAQ
How much user memory does the 1785-L30B provide?
The controller includes 32K words of battery-backed SRAM memory.
Which communication interfaces are built into the processor?
The module includes two DH+/Remote I/O communication channels and one configurable serial communication port.
Can the controller support remote I/O chassis?
Yes. The processor supports up to 28 universal remote I/O chassis within PLC-5 systems.
Does the processor support EEPROM backup modules?
Yes. The 1785-L30B supports EEPROM backup modules including the 1785-ME16, 1785-ME32, 1785-ME64, and 1785-M100.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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