Appendix A Free-port Communication Protocol
1. Summarization
We provide the customer with general RS485/RS232 communication
interface in our TDS600 series frequency inverter. For the users, through the
communication interface upper device (such as PC, PLC controller etc.) can
perform centralized monitor to the inverter (such as setting inverter parameter,
controlling run of inverter, reading work state of the inverter) and also long-
distance control keypad can be connected to realize diverse operating
requirement of the user.
This communication protocol is interface criterion file designed for realizing
above-mentioned function, please read it earnestly and program according to
it so that realize long-distance and network control to the inverter.
2. Protocol content and description
2.1. Communication net buildup mode
2.2. Communication mode
At present, TDS600 inverter can be used as not only auxiliary device but
also mainframe device in RS485, if the inverter is used as auxiliary device,
master device can be completed by PC, PLC or human interface, and if
used as mainframe device, the main- auxiliary control of the inverter can be
complement by it, Specific communication mode is as mentioned below:
01. PC or PLC as mainframe, inverter as auxiliary device, point-to-point
communication between mainframe and auxiliary device.
02. Auxiliary device don't response when mainframe send out command by
broadcast address.
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