Module Overview
The 1747-L30C is a PLC-5 series CPU module that delivers reliable processing power for mid-sized automation systems. It executes control programs, manages data exchange with I/O modules, and supports continuous operation in manufacturing and process environments.
Its compact design fits standard PLC-5 racks, enabling easy integration into existing systems and new automation projects.
Key Features and Benefits
Mid-performance CPU ideal for control-intensive applications
Non-volatile memory ensures program retention during power loss
Supports expansion via PLC-5 I/O modules and communication adapters
Engineered for robust operation in industrial environments
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Series | PLC-5 |
| Model | 1747-L30C |
| CPU Type | 16-bit processor |
| Memory | 30 KB user memory |
| Watts per Point | 0.20 |
| Backplane Slots | Supports up to 16 I/O slots |
| Communication | DH-485, Remote I/O |
| Operating Temperature | 0–55°C |
| Power Supply | 5V DC logic, 24V DC optional for I/O |
| Dimensions | 3.5 x 12 x 7.5 in (HxWxD approx.) |
Primary Application Areas
Automated assembly lines and production machinery
Packaging systems and material handling workstations
Process control in the chemical, food, and beverage industries
Retrofitting or expanding existing PLC-5 equipment
FAQ – Specific Customer Concerns

Common Problem
Can this CPU handle high-speed I/O scanning?
Yes, the L30C is specifically designed for medium-sized applications; refer to the module I/O specifications for detailed timing constraints.
What is the maximum user memory for programs?
30KB, sufficient for standard control logic of medium complexity.
Is this module compatible with existing PLC-5 racks?
It fits standard PLC-5 enclosures and supports most PLC-5 I/O modules.
Does the program persist during power loss?
Yes, non-volatile memory ensures permanent program storage.
Company Overview
Original New Guaranteed – PLC Export
Global Automation Supply Capability
We maintain extensive inventory and a global logistics network to deliver PLC-5 modules rapidly, minimizing downtime and ensuring seamless industrial production.
Practical Control Solutions
For systems requiring reliable PLC-5 performance, the 1747-L30C module delivers long-term stable processing capabilities, suitable for both routine maintenance and system upgrades.

Send Us Your RFQ
| Contact Method | Details |
|---|---|
| sales3@mooreplc.com | |
| WhatsApp / Phone | +86 180 2071 4662 |
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