Step 4. Checking Communication With Plc; Precautions For Communication With Plc - Omron WE70-AP Operation Manual

Chapter 3 Basic Setup

Step 4. Checking Communication with PLC

Check if communication is available between WE70 and PLC.
Execute a ping command from your PC at command prompt.
Example: Ping 192.168.0.10 (PLC's IP addresses)
PC
C:\>ping 192.168.0.10
3
Pinging 192.168.0.10 with 32 bytes of data:
Reply from 192.168.0.10: bytes=32 time<1ms TTL=250

■ Precautions for Communication with PLC

● High Load in FINS Communication
Constructing an application using the FINS communication service function may lead to a communication
failure (frequent response timeout) due to high load depending on a system configuration and an
application program.
For details, see CS1W-ETN21/CJ1W-ETN21 Ethernet Units Construction of Networks Operation
Manual(W420-E1), Section 5-2. IP Address in FINS Communications.
● Using FL-NET
FL-NET communication can be on wireless by WE70 but a communication error may occur due to a lost
frame.
FL-NET uses UDP communication protocol. UDP is a communication protocol that does not guarantee
delivery to the destination. Therefore, never forget to take measures such as setting retry process at the
higher application level to confirm delivery when making FL-NET communication on wireless.
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WE70-AP
192.168.0.10
WE70-CL PLC