Hatteland Display have identified a potential issue in the firmware handling electrical hardware interfaces (IO), affecting Solid State relay, Digital Input, Safety Signal Relay, Brightness Control, Light Sensor, Programmable Alarm LED, Buzzer and Glass Display Control™ (GDC) touch buttons.

This relates to both display and panel computer models.

The issue relates to some possible malfunction when accessing IO. Symptoms include the locking-up of the IO functions, i.e. not possible to read or change related parameters. So if the IO is not in use, it is unlikely that this issue will occur.

Hatteland Display hereby informs you about changes for the following model(s) in order to remedy the issue.

HD 08T21 xxx-xxx-xxxx	HD 13T21 xxx-xxx-xxxx

CHANGE(S) APPLIES FOR THE FOLLOWING HATTELAND DISPLAY® PRODUCT(S):
HD 08T21 xxx-xxx-xxxx
HD 13T21 xxx-xxx-xxxx
Note: Customized models are ALSO affected by this Engineering Change Notification.


EFFECTIVE FROM:
1 February 2013

CHANGE(S):
Update of firmware for the IO controller.


ADDITIONAL INFORMATION:
Please contact sales representative for test units.


For further enquiries or support for upgrading existing units and/or units in field, please contact HelpDesk at Hatteland Display.