Table of Contents
Page ii
Manual Documentation Number MESR9xx-4508m
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Modbus RTU Message ............................................................................................................................................................ 25
Modbus Serial Control .............................................................................................................................................................. 25
Modbus TCP Message ............................................................................................................................................................. 26
Model ....................................................................................................................................................................................... 26
Network Mode .......................................................................................................................................................................... 26
Network Protocols .................................................................................................................................................................... 26
Password ................................................................................................................................................................................. 27
Port# ID Remap ....................................................................................................................................................................... 27
Serial Interface Modes ............................................................................................................................................................. 27
Modbus Gateway Name ........................................................................................................................................................... 28
Gateway Serial Port Number ................................................................................................................................................... 28
Subnet Mask ............................................................................................................................................................................ 28
TCP (Transmission Control Protocol) ...................................................................................................................................... 29
5.
Upgrading the Modbus Gateway Firmware .................................................................................................. 30
Downloading Firmware Files .................................................................................................................................................... 31
Uploading the Firmware to the Modbus Gateway .................................................................................................................... 31
6.
Diagnostics ..................................................................................................................................................... 33
Testing a Modbus Gateway Connection .................................................................................................................................. 33
7.
Application Examples ..................................................................................................................................... 35
From Serial Master to Modbus Gateway, Slave IDs Configurable ........................................................................................... 35
From Serial Masters To Ethernet Master, Slave IDs Fixed ...................................................................................................... 36
Keep Serial Master, Add Ethernet Master(s) ........................................................................................................................... 36
Modbus RTU, ASCII, and TCP Integration .............................................................................................................................. 37
8.
Modbus Help ................................................................................................................................................... 38
Modbus ASCII/RTU Basics ...................................................................................................................................................... 38
Hints and Tips .......................................................................................................................................................................... 39
9.
Appendices ..................................................................................................................................................... 40
Appendix A: Default Gateway Settings .................................................................................................................................... 41
Appendix B: Product Specifications ......................................................................................................................................... 42
General Specifications ................................................................................................................................................. 43
Controls, Indicators and Connector Specifications ...................................................................................................... 44
Serial Interface Specifications ..................................................................................................................................... 45
Network Specifications ................................................................................................................................................. 46
Appendix C: Dimensional Diagrams ........................................................................................................................................ 47
Appendix D: Connector Pinouts ............................................................................................................................................... 51
MESR901-x Serial Port Pinouts ................................................................................................................................... 51
MESR902D-x Serial Port Pinouts ................................................................................................................................ 53
MESR902T-x Serial Port Pinouts ................................................................................................................................. 54
Standard Ethernet Cable RJ-45 Pin-out ....................................................................................................................... 55
10.
Glossary .......................................................................................................................................................... 56
