During commissioning, connecting the X4 SMT machine to the customer network is essential for programming, data transfer, and centralized control. However, as seen in recent field incidents with ASMPT X4 systems, network issues can significantly delay progress. This guide consolidates real-world experience and recommended steps to resolve these issues quickly and effectively.

Problem Overview

Customers reported unable to connect the X4 machine to the SIPLACE network, even after adjusting IP configurations. A potentially damaged network interface was suspected due to forcibly cut LAN cables inside the machine PC.

Common Causes

1. Incorrect IP/subnet settings – Misconfigured IP addresses or subnet masks prevent communication even if the network cable is physically connected.

2. Hardware failure – The onboard Ethernet port may be damaged from improper cable handling or static.

3. Interface misuse – Network port not enabled, misconfigured, or blocked by firewall/software.

Recommended Troubleshooting Steps

1. Direct Connect Test

• Connect a laptop directly to the machine PC using a known-good Ethernet cable.

• Assign static IPs within the same range, e.g.:

  • Machine: 192.168.0.10 / 255.255.255.0

  • Laptop: 192.168.0.20 / 255.255.255.0

2. Execute Ping Tests

• Use ping 192.168.0.10 (from laptop) and vice versa.

• Results:

  • Responds → Network link OK

  • No response → note error (e.g., Timeout, Destination Unreachable)

3. Examine Error Details

• Ping errors help differentiate between config, cable, or hardware issues.

4. Try Alternate Interface

• If the machine PC has a spare Ethernet port, reassign network settings to that port and retest.

5. Use USB-to-Ethernet Adapter

• If no spare port exists, add a USB-to-RJ45 adapter and configure its IP.

• USB Ethernet provides a reliable workaround if onboard NIC is faulty.

6. Validate with Known-Good Hardware

• Test the suspect cable and port using another device to isolate the faulty component.

Helpful Notes

• Ensure subnet mask consistency across devices (e.g., 255.255.255.0).

• Avoid forced cable removal; use proper unplugging to prevent NIC damage.

• This methodology applies to most SIPLACE machines, not just X4.

Final Recommendations

• Follow the steps above in sequence to quickly determine if the issue is configuration, cabling, or hardware related.

• In case of confirmed NIC failure, using a USB-to-Ethernet adapter is a straightforward, immediate solution.

• After restoring connection, re-test all commissioning functions: software networking, data access, remote diagnostics.

Got a similar issue?

For further assistance—be it software configuration, compatible USB-to-Ethernet adapter recommendations, or spare parts sourcing—feel free to reach out to our technical support team.