== Main Board Update History ==


==== Ver: 1.17  September 1, 2010 ====
Improved COM3 to allow TX enable/disable for RS485. Uses same command from main board as SetRTS.

==== Ver: 1.16  February 17, 2010 ====
Added support for ICAN cards.

==== Ver: 1.14  July 9, 2009 ====
Added support for DIO card counting feature.

==== Ver: 1.12  June 17, 2009 ====
Added support for DAC card.

==== Ver: 1.11  March 3, 2009 ====
Communications improvements to help prevent “Lost communications with main board”.

==== Ver: 1.10  November 7, 2008 ====
Added DIO event method to remove all events and reset outputs to low state. 5B {card} 00 00 00 00 FF FF FF FF {condition empty}

==== Ver: 1.08  Oct 15, 2008 ====
Fixed problem if main board received message from OPI of 2 bytes or less, which might happen due to noise, the main board would stop communicating with the OPI causing “Lost communications with main board”.