1. Open Command Prompt

• Press Win + R

• Type cmd

• Press Enter

NOTE: BestPack machines (C-Series and E-Series) may have one of the following IP addresses:

• 192.168.1.3

• 192.168.1.4

• 192.168.1.5

• 192.168.1.180

The example IP address used in this article is 192.168.1.3.

2. Use the Ping Command

Type the following and press Enter:

3. Understand the Results

Successful communication:

Reply from 192.168.1.3: bytes=32 time<1ms TTL=64

This means:

• The PLC is powered ON

• Network cable and switch are OK

• PC and PLC are on the same network

No communication:

Request time out.

Possible causes:

• PLC is powered OFF

• Wrong IP address

• Different subnet

• Ethernet cable or switch issue

• Firewall blocking ICMP (less common for PLCs)

4. Ping Continuously (Useful for Troubleshooting)

ping 192.168.1.3 -t

Stop it with Ctrl + C.

5. Check Your PC IP Address

Make sure your PC is on the same subnet as the PLC:

ipconfig

Example:

• PLC: 192.168.1.3

• PC: 192.168.1.15

• Subnet mask: 255.255.255.0