Allen Bradley 2711P series PanelView Plus human-machine interface terminal

5.4 Backlight replacement (700-1500)

Backlight type: CCFL (cold cathode fluorescent lamp), containing mercury, needs to be disposed of according to environmental requirements. The number of backlights varies for different models:

700:1 root (Series A/B uses 2711P-RL7C, Series C uses 2711P-RL7C2)

1000:1 (Series A uses 2711P-RL10C, Series B/C uses 2711P-RL10C2)

1250:2 (Series A/B) or 1 (Series C)

1500:2 pieces (Series B)

Replacement steps:

Remove the panel frame and LCD display screen fixing screws.

Unplug the LCD connector and backlight connector.

Press the buckle or remove the fixing screw to remove the old backlight.

Insert a new backlight, reconnect all cables, and secure the LCD and bezel.

Fault diagnosis and interpretation of LED indicator lights

6.1 Front panel dual color LED

COMM (green): Communication activity. Flashing indicates data transmission and reception.

Fault (red): Hardware malfunction indication.

During the startup process, if FAULT stays on or flashes a specific number of times, it should be judged according to the following table:

FAULT status COMM status Possible causes Handling measures

Flashing out. Last firmware download failed. Use the Firmware Upgrade Wizard to upgrade the firmware again

Flashing EBC bootloader lost and firmware needs to be re upgraded

Always on/off Windows CE firmware is damaged, upgrade firmware again

Constant flashing display module fatal hardware failure replacement display module (700-1500) or whole machine (400/600)

6.2 Startup Error Codes and Countermeasures

At startup, the screen will display an error number and text, commonly seen as follows:

Error number message handling

1. Reset RAM Test Failure; If it continues, replace the entire machine at 400/600; Reinstall SODIMM or replace logic module for 700-1500

24 CRC Check to reload firmware; If ineffective, replace the internal CF card

30 Watchdog test failure. Reload firmware; 400/600 replacement of the entire machine; 700-1500 replace logic module

31 Stuck Key Check if any keys are stuck; Reset; If it persists, replace the display module

31.5 Stuck Touch checks if the touch screen is pressed; Reset; If it persists, replace the display module

32 Battery failure: Replace the battery; If it persists, replace the logic module

40 EXE Check system firmware is missing or damaged → reload firmware; If ineffective, replace the internal CF card

6.3 Startup Information Message (Non Error)

The messages displayed during the startup process (such as Video Initialize, RAM Test, Registry Search, Battery Test) belong to the normal self-test steps. If one of them is stuck for a long time, it indicates a corresponding hardware or firmware problem.

6.4 Extended self-test (700-1500)

In configuration mode, enter Terminal Settings>Startup Options>Startup Tests and choose to run the following tests:

RAM testing

backlight test 

Touch screen test

Keyboard Test

Serial port testing (requires the use of loopback connectors)

Real time clock testing

After enabling Extended Diagnostics, the number of repetitions can be set and automatically executed each time, helping to locate intermittent faults.

Firmware upgrade method

7.1 Use firmware upgrade card (CompactFlash)

Run the Firmware Upgrade Wizard on a PC (located in FactoryTalk View Studio or firmware upgrade kit).

Select 'Create firmware upgrade card', specify the target CF card drive letter and required firmware version.

Insert the generated CF card into the external card slot of the terminal.

After the terminal is powered on, it automatically detects the upgrade file and confirms by pressing Upgrade.

Wait for the upgrade to complete (about a few minutes), and the terminal prompts to remove the CF card before automatically restarting.

Attention: After upgrading, communication settings will be cleared and IP addresses need to be reconfigured.

7.2 Upgrading through Network (Ethernet)

Ensure that the PC and terminal are on the same subnet, or browse to the terminal through RSLinx Enterprise.

Run the Firmware Upgrade Wizard and select "Upgrade firmware on terminal" → "Network connection".

Browse to the target terminal (or enter the IP address), select the firmware source path and version.

Click Finish to start downloading, the process takes about 5-15 minutes.

After completion, the terminal will automatically reset and the touch screen needs to be recalibrated.

7.3 CE Operating System Upgrade

The operating system image (SYSTEM. BIN) of PanelView Plus CE can be upgraded in two ways:

External CF card: Copy SYSTEM. BIN to the root directory of the CF card, insert it into the external card slot of the terminal, and power it on again to automatically update.

LocalOSUpdate command: Copy SYSTEM. BIN to CF card and execute it on the terminal command line LocalOSUpdate "Storage card2NewOS.BIN"。

After upgrading the OS, it is necessary to reload PanelView Plus CE components (such as IE, ActiveSync, PDF reader, etc.), which can be completed by connecting through ActiveSync or running the installation program on an external CF card.

Safe Mode and Recovery

When the terminal fails to start properly due to incorrect registry settings or malicious applications, Safe Mode can be used to enter the minimal system.