TP70P Quick Start
Example: COM2 uses RTU communication.
If the communication format that COM2 uses is the RTU communication protocol (9600, 8, E, 1), the program
below will be required.
Notes:
1.
After the modification of the communication format that COM2 uses is complete, the communication format
that COM2 uses will not change if the PLC stops running.
2. After the modification of the communication format that COM2 uses is complete, the communication
protocol that COM2 uses will be the default communication protocol (9600, 7, E, 1) if the PLC is turned off
and then powered when it stops running.
3. If COM2 functions as a slave station, users only need to set a communication format. If COM2 functions as
a master station, a Modbus command will need to be sent by means of a communication instruction
(MODRD/MODWR/MODRW)
3.4 Using COM2 as a Master Station
【
Question
】
How to use COM2 as a master station?
【
Answer
】
If COM2 is used to as a master station connected to another device, commands will need to be sent
by means of the Modbus instructions in the program in the PLC. Please refer to Chapter 4 in
DVP-ES2/EX2/SS2/SA2/SX2/SE&TP Operation Manual for more information about the communication ports
on a PLC. (Users can download DVP-ES2/EX2/SS2/SA2/SX2/SE&TP Operation Manual from the official
website of Delta (http://www.delta.com.tw
).)
Using COM2 to read the data in a DVP series PLC and write data to a DVP series PLC is described below.
Example: COM2 is used to set Y0 on a DVP series PLC to ON.
Step 1:
Please download the program below to TP70P.
3-6
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