Communication issues with the 1515 Isocratic HPLC Pump - WKB8409

SYMPTOMS

• Unable to set the flow rate on the 1515 in the Run Samples Window
• In the properties of the Node, all instruments except the 1515 respond "Yes" to "OK?"
• Replacing cable does not resolve the issue
• Cannot ping the IP address of the 1515, but all other instruments get a reply
• Changing the port on the switch does not resolve the issue

ENVIRONMENT

• 1515 Isocratic HPLC Pump
• Ethernet Switch Box, 8-port
• Empower 3 Chromatography Data Software Personal
• 2707 Autosampler
• 2414 Refractive Index (RI) Detector

CAUSE

Communication glitch in the Ethernet switch.

FIX or WORKAROUND

1. Unplug the power cable to the Ethernet switch.
2. Power-off the systems.
3. Power-off the computer.
4. Power-on the computer.
5. Log into Windows.
6. Power-on each instrument, waiting in between until each component completes the start-up diagnostics.
7. Plug the power cable back into the outlet for the Ethernet switch.
8. Log into Empower.
9. Verify the properties of the nodes, particularly the "OK?" status.

ADDITIONAL INFORMATION