ProSoft Technology 3250-L532M Remote Terminal Unit SLC 5/03 Processor

The ProSoft Technology 3250-L532M is a specialized Remote Terminal Unit (RTU) designed to enhance SCADA (Supervisory Control and Data Acquisition) systems. It is based on the Allen-Bradley SLC 5/03 CPU and comes equipped with Modbus Slave functionality on Channel 0. This device allows seamless integration into industrial automation systems by enabling efficient communication with other Modbus-compatible devices and systems.

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Key Features & Benefits

• Allen-Bradley SLC 5/03-Based CPU: Utilizes the SLC 5/03 processor architecture, which offers a stable and widely adopted platform for industrial control applications.
• Modbus Slave Protocol on Channel 0: Provides full Modbus Slave support, allowing the RTU to communicate with a Modbus Master device for reading and writing of data.
• Easy Configuration: Configure the Modbus Slave settings via ladder logic by editing the integer file N100. This file includes essential parameters such as baud rate, slave address, and data format.
• Advanced Diagnostic Features: The Modbus Slave driver provides comprehensive diagnostic information for troubleshooting, all accessible via the configuration files.

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General Specifications

• Modbus Protocol Support:
  • RTU (binary) with CRC-16 error checking.
  • ASCII with LRC error checking (supports both 7 and 8-bit formats).
  • Supports Modbus function codes for reading and writing various data types like coils, discrete inputs, holding registers, and input registers.
  • Supports reading and writing of floating-point values using the optional ‘Enron’ addressing range.
• Communication Configuration:
  • Slave Address Range: 1 to 127 (address 0 is used for broadcast).
  • Baud Rate Range: 300 to 19,200 baud.
  • Parity: Supports none, odd, or even parity.
  • Stop Bits: 1 or 2 stop bits.
  • Delays: Configurable delays for RTS send delay, RTS off delay, pre-send delay, and inter-character delay (0–2500 ms).
• Modbus Master Capabilities:
  • Allows Modbus Master to read/write data from/to the processor’s Status File (S2).
  • Modbus Master can remotely monitor processor health, including real-time clock settings.
• Channel 0 (RS-232C):
  • Supports DF1 or Modbus Slave communication.
  • DB-9 Male connector for RS-232C communication.
  • Provides an interface for SLC programming and communication.
• Channel 1 (DH-485):
  • RJ45 port used for programming and communication over the DH-485 protocol.
  • Suitable for both SLC programming and network access.

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Hardware Specifications

• Current Load:
  • 500 mA @ 5 Vdc.
  • 175 mA @ 24 Vdc.
• Temperature Range:
  • Operating: 0°C to 60°C (32°F to 140°F).
  • Storage: -40°C to 85°C (-40°F to 185°F).
• Shock Resistance:
  • Operational: 30 g.
  • Non-operational: 50 g.
• Vibration:
  • 5 g from 10 Hz to 150 Hz.
• Humidity:
  • 5% to 95% relative humidity (non-condensing).
• LED Indicators:
  • RUN: Indicates the processor is running.
  • FORCE: Indicates output force state.
  • FLT: Indicates fault condition.
  • DH485: Indicates activity on the DH485 port.
  • BATT: Indicates the status of the internal battery.
  • MODBUS (RS232): Indicates Modbus activity on Channel 0.

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Additional Functional Specifications

• SLC 5/03 Functions:
  • DF1 Programming Support: Allows programming using standard ladder logic.
  • Auto-Switching Between DF1 and Modbus: Channel 0 can automatically switch between DF1 (for standard SLC programming) and Modbus Slave modes.
  • Network Access: Allows access to and programming over DH-485 network.
  • Inputs and Outputs: Supports up to 1024 inputs and 1024 outputs.
  • Memory Configurations: Offers 16K memory capacity (model 3250-L532M).
  • Floating-Point Math Support: Includes capabilities for floating-point operations.
  • Built-In Real-Time Clock and Calendar: Enables precise time tracking.
• Modbus Function Codes Supported:
  • 1: Read output status (Coils).
  • 2: Read input status (Discrete Inputs).
  • 3: Read multiple data registers.
  • 4: Read input registers.
  • 5: Force single coil.
  • 6: Write single register.
  • 8: Loopback test (only address 0).
  • 15: Write multiple coils.
  • 16: Write multiple registers.

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Processor Ports Overview

• Channel 1 (DH485 Port):
  • RJ45 jack used for SLC programming and DH485 communication.
• Channel 0 (RS-232C Port):
  • DB-9 Male port used for Modbus communication and SLC programming (DF1).

This ProSoft Technology 3250-L532M RTU solution is a powerful, flexible, and cost-effective tool for SCADA applications, particularly where Modbus communication is needed alongside Allen-Bradley SLC 5/03 programming capabilities. It offers advanced functionality, easy configuration, and a rugged design for demanding industrial environments.

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Contact Us

• Phone: +86-15915488782
• Email: uma@meloauto.com
• WhatsApp: +8615915488782
• Business Hours: 24/7 service
• Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China

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