Allen Bradley 1747-L542 Processor Module

The AB 1747-L542 is a high-performance SLC 5/04 processor module engineered for use within the Allen Bradley SLC 500 series. It offers 32K words of user memory and supports up to 28,000 words of ladder logic programming, making it ideal for mid-sized automation applications that require fast execution and robust communication.

Equipped with dual communication ports – DH+ (Data Highway Plus) and RS-232 – the 1747-L542 allows seamless integration with existing PLC networks and computer interfaces. Its compact chassis-mount form factor is designed for efficient space utilization, with full battery backup and support for ladder logic programming.

Technical Specifications

Model: 1747L542
Series: SLC 500
Type: Modular PLC CPU Unit
Memory: 32,000 Words Total
Program Capacity: 28,000 Words
Voltage Category: 5 → 24 V DC
Input Type: Digital
Output Type: Digital
Output Current: 1 mA
Communication Port Type: DH+, RS-232
Application: General industrial control, machine automation, system integration

Electrical Specifications

Input Voltage Range: 5 → 24 V DC
Input Type: Digital (via I/O modules)
Output Type: Digital (via I/O modules)
Output Current: 1 mA (nominal)
Battery Backup: Yes
Backplane Current Draw: Model-specific (consult manual)
Number of Communication Ports: 2
Communication Ports: 1 x DH+ (Data Highway Plus), 1 x RS-232
Programming Interface: Computer
Programming Language Used: Ladder Logic

Mechanical Specifications

Mounting Type: Chassis Mount
Dimensions: 145 mm (L) x 35 mm (W) x 142 mm (D)
Form Factor: SLC 500 modular slot
Installation: Fits into standard SLC 500 chassis
Display/Indicators: Status LEDs
Port Access: Front-facing communication ports

Environmental Specifications

Operating Temperature Range: 0…+60 °C
Storage Temperature: –40…+85 °C
Relative Humidity: 5%…95% non-condensing
Enclosure Rating: Open-type (chassis only)
Certifications: CE, UL, cUL
Application in Commercial/Residential Areas: Permitted

Compliance & Communication

DH+ (Data Highway Plus): Supported
RS-232: Supported
EtherNet/IP: Not supported
MODBUS / TCP/IP: Not supported natively
SERCOS / DeviceNet / ControlNet: Not supported
Software Compatibility: RSLogix 500
EMC Compliance: Meets industrial standards for emissions and immunity

Key Features & Benefits

✅ Large User Memory – 32,000 words total with 28,000 words for programming

✅ Dual Communication Ports – Includes DH+ and RS-232 for flexible network integration

✅ Compact Modular Design – Seamless fit in SLC 500 chassis with efficient layout

✅ Battery Backup – Maintains program and memory during power loss

✅ Ladder Logic Programming – Fully compatible with RSLogix 500 software

✅ Industrial Durability – Operates reliably from 0 to 60°C with full chassis integration

📦 Order the Allen Bradley 1747-L542 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 1747-L542 prices. With genuine original modules available and fast delivery, we provide expert support for all your SLC 500 system upgrades and replacements.

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