COMM: Allen Bradley Ethernet/IP quickie

Tue Sep 15 07:26:01 EDT 2009

==> Automation List post by Joe...
To view or reply to this thread: http://www.control.com/thread/1253001439

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COMM:  Allen Bradley Ethernet/IP quickie
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Hi,

I'm having difficulty with my first Ethernet/IP application. I've a ControlLogix 5561 controller with an IP card communicating with 2 external I/Os. It also communicates with a PanelView700 HMI.

The PanelView is retaining its designated IP settings after boot or reset.

The other 3 devices (PLC and 2 I/Os) require IP settings to be set from a laptop using BOOTP software.

All the devices are configured correctly and communication is unfaulted once set up from BOOTP.

The hardware config within the RSlogix program is correct also and details each device's IP address.

My question is basic, why is the PLC not reading its own IP settings from the installed program and should it not write this data to the I/Os also at power up instead of going into BOOTP mode?
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