Misc microblocks

	DO/DI Proof A DO/DI Proof microblock verifies proper equipment operation by comparing the status of a digital input with the status of a corresponding digital output.
	Up/Down Counter An Up/Down Counter microblock counts the number of on signals it receives and produces a number that increases or decreases according to the input receiving the signal.
	Text A Text microblock allows you to place and format descriptive text on the Properties page.
$Source graphics \ Microblock Reference \ MBs$	Version A Version microblock allows you to attach a fixed version number to a control program.
	Sunrise/Sunset A Sunrise/Sunset microblock calculates the time the sun will rise and set based on location and time zone information entered in the Snap application or on the Properties page.
	OCL (Operator's Control Language) OCL allows you to create your own microblock when no other microblock suits your application. You define the microblock's inputs, outputs, and internal calculations.