Allen-Bradley 1785-L30B/E PLC-5/30 Processor Module
$123.00
$320.00
Description
Allen-Bradley 1785-L30B/E PLC-5/30 Processor Module
Configured for PLC execution and I/O coordination in PLC-5 control systems, the Allen-Bradley 1785-L30B/E (1785-L30B PLC-5/30 Processor Module) provides direct processing and communication functions through 1771 I/O chassis platforms. The module handles user program execution, Remote I/O scanning, and DH+ network communication.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | Allen-Bradley 1785-L30B/E |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 2.73 lbs |
| Operating Temp | 0 deg C to 60 deg C |
| Power Consumption | Backplane current draw: 1.0 A @ 5 VDC |
| Processor Type | PLC-5/30 Standard Processor, Series E |
| User Memory | 3K words battery-backed memory |
| Communication Ports | 1 x DH+, 1 x RS-232 serial, 1 x Remote I/O scanner |
| Maximum I/O Capacity | 1536 points |
| Chassis Compatibility | 1771 I/O chassis |
| I/O Scan Time | 10 ms per rack @ 57.6 kbps, 7 ms @ 115.2 kbps, 3 ms @ 230.4 kbps |
| Memory Retention | Lithium battery-backed program retention |
| Status Indicators | Power, fault, and communication LEDs |
| Certifications | UL, CE, CSA |
PLC-5 Communication and Control Architecture
The 1785-L30B/E processor supports PLC-5 system communication through DH+ network connectivity, RS-232 serial communication, and Remote I/O scanner operation. The processor exchanges control data with 1771 I/O modules through the chassis backplane and manages distributed I/O devices through Remote I/O communication.
The PLC-5 architecture uses deterministic scan execution with configurable communication rates. The processor performs logic execution, diagnostics processing, and I/O updates according to the configured controller program and rack addressing structure.
Frequently Asked Questions (FAQ)
Q: What type of I/O chassis does the 1785-L30B/E processor require?
A: The module is designed for installation in Allen-Bradley 1771 I/O chassis systems and communicates with installed I/O modules through the chassis backplane.
Q: Which communication interfaces are available on the 1785-L30B/E?
A: The processor provides DH+, RS-232 serial communication, and Remote I/O scanner functionality for PLC-5 network configurations.
Q: How is user program memory maintained during power loss?
A: The processor uses battery-backed memory retention with a lithium battery to preserve stored application programs.
Field Installation Guidelines
Install the 1785-L30B/E processor in a compatible 1771 chassis slot with the chassis power removed before module insertion or removal. Verify backplane connections are fully seated and inspect the edge connector for contamination or mechanical damage.
Route communication cables separately from high-voltage power conductors to reduce electrical interference. Apply proper cable shielding and grounding practices according to the installed DH+, RS-232, and Remote I/O network requirements.
Before system startup, confirm processor status LEDs, communication wiring, rack addressing, and controller configuration parameters. Maintain battery condition to prevent loss of retained application memory.
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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