User Manual
Table Of Contents
- RFID OsiSense® XG
- Table of Contents
- Safety Information
- About the Book
- General Information
- Specifications and Physical Description
- Installing the System
- Operating Principles
- EtherNet/IP Communications Support
- Modbus TCP/IP Communications Support
- Web Server
- Diagnostics
- FAQs
- Glossary
- Index
Modbus TCP/IP Communications Support DI[D-SE-0030484.1.5]
110 EIO0000001601 Draft 2013/07/17
Syntax:
” Slave no.: 01h
” Function code: Same as the function code and most significant bit of the byte set at 1
Examples:
” Function code of the detected error message after a read request:
83h = (80 + 03) or 84h = (80 + 04)
” Function code of the detected error message after a write request:
90h = (80 + 10)
Detected error code:
” 1h: Unknown function code or incorrect request format
” 2h: Incorrect address or prohibited zone or protected zone or address outside the tag memory
zone
” 3h: Incorrect data too much or not enough data in the frame, or quantity = 0, or data
incompatible
” 4h: Execution detected error (in read or write mode, or tag missing)
Slave no. Function
code
Detected
error code
Check
1 byte 1 byte 1 byte 2 bytes
(RTU mode)