ILX34-MBS
User Manual
General Features & Specifications
ProSoft Technology, Inc.
Page 27 of 29
4
General Features & Specifications
Add-On instruction creates UDTs, providing logical definitions for I/O, status, and
control data
Diagnostic data available in RSLogix 5000/Studio 5000 controller tags, allowing
decisions to be made based upon node health
Module configuration is backed up in the CompactLogix project (.ACD file)
Serial port enable/disabled through ladder logic
Supports up to 1000 words of data
Supports up to 30 Modbus commands and up to 36 words per command
The Serial Port can be configured as a Modbus Master or Modbus Slave device
Suitable for SCADA and field device interface applications
4.1
General Specifications
Specification
Description
Configuration Environment
RSLogix 5000 / Studio 5000
Max Modbus Command Size
Modbus command sizes are limited to 8, 16, and 36 words
per command, depending on AOI selected
Max Modbus Commands
30
Communication Parameters
Baud Rate: 110 to 38.4K baud
Stop Bits: 1 or 2
Data Size: 7 or 8 bits
Parity: None, Even, Odd
Modbus Modes
RTU mode (binary) with CRC-16
ASCII mode with LRC error checking
Node Address
1 to 247
Supported Modbus Function
Codes:
1: Read Coil Status
2: Read Input Status
3: Read Holding Registers
4: Read Input Registers
5: Force (Write) Single Coil
6: Preset (Write) Single Holding Register
8: Diagnostics (Slave Only. Responds to Sub-function 00)
15: Force (Write) Multiple Coils
16: Preset (Write) Multiple Holding Registers