Delta TP70P User Manual

Chapter 3 Frequently Asked Questions and Answers
Step 4:
Compile the program created, and download the program to TP70P. Connect COM3 on TP70P to an
RS-485 communication port on a PLC.
3.6 Setting an RTU Mode for COM3
【
Question
】
How to set an RTU mode for COM3?
【
Answer
】
When COM3 functions as a master station, it supports three RTU drivers. One is a Delta VFD RTU
mode. It supports the RTU modes of Delta AC motor drives. Another is a Delta Modbus RTU mode. It can be
used to connect a product which supports Delta Modbus. The other is a Modicon Modbus RTU mode. It can be
used to connect a product which supports Modicon Modbus RTU communication. The example below
describes how a TP70P series text panel which uses Delta Modbus RTU communication is connected to a
PLC.
Example: An RTU mode is used to read the value in D0 in a DVP series PLC.
Step 1:
Select
DELTA Modbus RTU
in the
HMI <=> PLC
section in the
New Project
window.
3-9

Delta TP70P Specifications

General

Brand	Delta
Model	TP70P
Category	Monitor
Language	English