ProSoft 3170-MBS Modbus Slave Communication Adapter

The ProSoft 3170-MBS Modbus Slave Communication Adapter allows interfacing up to 8 Rockwell Automation FLEX and/or Integra I/O modules with any Modbus Master.

Functionality includes:

• Multi-drop on an RS-485 link with other Modbus compatible devices
• Interface Analog and/or Discrete I/O directly to a Host
• Add FLEX I/O into applications with existing devices from other manufacturers

The module is easy to use with dip-switch configuration options. Pre-mapped Flex and Integra data images simplify Modbus read/write operations using standard commands. The 3170-MBS offers full read/write access to all Flex and Integra modules, supporting Function Codes 1, 2, 3, 4, 5, 6, and 16.

General Specifications

• I/O Capacity: 8 I/O modules (Flex and/or Integra)
• RS-485 Communication Port: 3 screw termination
• Status LEDs:
  • Power / Control Status
  • Serial TX, RX, and ERROR Status
• Input Voltage: 24 VDC (19.2–31.2 VDC)
• Max Input Power: 8.6 W
• Max Backplane Output Current: 640 mA @ 5V
• Operating Temperature: 0 to 55°C
• Storage Temperature: -40 to 85°C
• Dimensions: 87 x 68 x 69 mm (3.4 x 2.7 x 2.7 inches)
• Certifications: UL Class I Div 2 Groups A, B, C, D

Modbus Specifications

• Supported Modes:
  • RTU mode (binary) with CRC-16 error checking
  • ASCII 7 and 8-bit modes with LRC error checking
  • Broadcast commands from the Master
• Supported Function Codes:
  • 1: Read Output Coils (Horizontal addressing only)
  • 2: Read Discrete Inputs (Horizontal addressing only)
  • 3: Read Multiple Holding Registers
  • 4: Read Multiple Input Registers
  • 5: Force (Write) Single Coil (Horizontal addressing only)
  • 6: Preset (Write) Single Holding Register
  • 16: Preset (Write) Multiple Holding Registers
• Modbus Memory Map: Pre-assigned
• Configurable Parameters (via dip switches):
  • Address: 1 to 247
  • Parity: None, Odd, or Even
  • Stop Bits: 1 or 2
  • Baud Rate: 1200, 2400, 4800, 9600, 19200, 38400, 62500

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