Check that the data source is configured correctly and the machine is connected and powered on.

If you are still getting a timeout error, the Run test connection (details below) may be getting blocked by your computer/network firewall. Either try using a different network or contact your IT to make sure the test is not getting blocked.

Direction	Port	Transport protocol	Application protocol
Outbound	443	TCP	WebSocket

If the above is all in order, your machine may not be responding in a timely manner (timeout details below). That may be due to high CPU load or simply outdated hardware.

Hardware/firmware	Timeout
SecureEdge and SecureEdge Pro, firmware 5.0 and up IXrouter3, firmware 3.25 and up	2 seconds
IXrouter3, firmware 3.24 and below IXrouter2, firmware 2.13 and below	20 seconds

The edge gateway was unable to read one or more variables. These variables have been temporarily blacklisted so that other variables can continue to be read.

The error message may contain a second error, indicating what the problem is. Look up that error below, resolve it, and then reboot the edge gateway.

The machine doesn't support EtherNet/IP. Either enable EtherNet/IP or choose a different communication protocol.

You requested a complete struct. The address should be an element of the struct, not the full struct.

Incorrect rack number, default is 1.

Incorrect slot number, default is 0.

Incorrect address or the address doesn't exist.

Incorrect address or the address doesn't exist.

The requested service was not implemented or was not defined for this object.

The object specified does not exist in the device.

The PLC is unable to process all data requests within its own time limit of 10 seconds, breaking the connection prematurely.

Any of these solutions can be applied to resolve the issue:

• Increase the timeout in the PLC, if at all possible.
• Upgrade the PLC hardware or replace it by one with better hardware specifications.
• In the IXON Cloud, create a second identical data source and split the variables across both data sources to reduce the amount of data requested in one connection.