Allen-Bradley PanelView 800 2711R-T4T User Manual page 100

Panelview 800 series hmi terminals

Table of Contents

Chapter 8

Troubleshoot the System

PanelView 800 Terminal Alerts

Category

Communication

100

Description

Data Access Error for Alias /*S:0 Param2*/,

Controller /*S:0 Param3*/, Address is /*S:0

Param4*/, Communication Flag is /*S:0 Param1*/

The terminal is having trouble reading the

external tag at this controller and address.

Communication Server Error

Rockwell Automation Publication 2711R-UM001E-EN-E - January 2017

Corrective Action

Check that the communication network cable is

connected.

If new ladder logic is downloading to the controller,

you could see this message. After the download,

communication should run normally.

Verify you have good communication to the

controller. If a remote device not responding alert

was present, then all external tags being actively

scanned will generate this alert.

Is the address configured in the controller? If so,

make sure all addresses of external tags to this

controller are configured at the controller. If one

address is outside of the range, a block of addresses

might show this condition. If the address is

configured as write only at the controller, this

address cannot be read. Set this external tag as

write only and remove panel devices from your

application that want to display data from this

external tag.