Overview
The Allen-Bradley 1747-L524 SLC500 processor is an SLC 5/02 controller module designed for modular SLC 500 automation platforms. This sealed processor unit delivers mid-range performance for industrial control applications, featuring configurable 4KB user memory, integrated DH-485 communication, and support for extensive I/O capacity up to 4,096 discrete input and output points.
Key Features
- SLC 5/02 Architecture: The Allen-Bradley 1747-L524 is an SLC 500 processor, also referred to as an SLC 5/02 controller, with a maximum memory of 4K for instructions and 4096 modules each for discrete input and output.
- Integrated DH-485 Communication: Built-in DH485 communication port for messaging and data exchange with HMI, SCADA, and third-party automation systems.
- Modular Expandability: This processor supports analog, digital, scanner module, specialty and intelligent IO modules.
- Advanced Control Capabilities: This controller’s capability is more advanced compared to SLC 5/01 processors as it can also implement Proportional + Integral + Derivate (PID) algorithm through the built-in instruction for closed loop and automatic control applications.
- Flexible Memory Configuration: User-configurable memory for either data storage or program storage.
- EEPROM Backup: Optional EEPROM modules allow save and restore of processor RAM data.
Technical Specifications
- Processor Type: SLC 5/02
- Program Memory: 4KB (4,000 instructions)
- Maximum Discrete I/O Capacity: Up to 4,096 inputs and 4,096 outputs
- Maximum Analog I/O: 480 local Analog I/O
- Communication Port: DH-485
- Backplane Current Load: 350 mA at 5 V DC, and 105 mA at 24 V DC
- Operating Temperature: 0 °C to 60 °C
- Storage Temperature: -40 °C to +85 °C
- Program Scan Time: Approximately 1.6 ms per 1,000 instructions
- Chassis Position: Occupies Slot 0 in the SLC 500 chassis
- Series: Series C
- Battery Backup: User-replaceable lithium battery with approximately 2-year lifespan
Typical Applications
The 1747-L524 has integrated DH485 communication for exchanging data with Human Machine Interface (HMI), Supervisory Control and Data Acquisition (SCADA) and 3rd party automation systems. It may also be used for messaging other Allen-Bradley controllers such as PLC 5, CompactLogix and ControlLogix. The 1747-L524 is well-suited for machine automation, process control, remote I/O implementation, and mixed discrete/analog control requirements where mid-range memory and I/O capacity are required.
Compatibility & Replacements
Compatible With
- SLC 500 modular chassis (slots 1–30)
- Analog, digital, scanner modules (including DeviceNet, ControlNet, and Universal Remote I/O), specialty, and intelligent I/O modules
- Allen-Bradley HMI systems via DH-485
- SCADA integration platforms
- Third-party industrial automation systems supporting DH-485
Replaces / Drop-In Replacement For
The 1747-L524 is the only controller variant under the SLC 5/02 controller category. This processor directly replaces other Series C SLC 5/02 units with the same part number. For system downgrades or upsizes, consult your system integrator regarding alternative SLC 500 processors (SLC 5/03, 5/04, 5/05).
Works With
- RSLogix 500 programming software
- DH-485 communication protocol
- DeviceNet scanner modules
- ControlNet scanner modules
- Universal Remote I/O modules
- Allen-Bradley FactoryTalk View HMI
- CompactLogix, ControlLogix, and PLC-5 messaging
