Digital Register Block

Purpose

The Digital Register (DR) block reads and writes digital values to process hardware. It provides both input and output capacity in a single block using a minimum amount of memory because iFIX only processes the block when a picture that references it is open.

Features

The Digital Register block:

• Is a primary block.
• Is always a stand-alone block.
• Sends and receives values from an I/O driver or OPC server.
• Requires no SAC processing.
• Lowers CPU overhead when compared to an Digital Input block and increases SAC performance.
• Is processed when the picture containing the Digital Register block is displayed in the iFIX WorkSpace, even when SAC is not running. The block is not processed when another picture is displayed or when the operator exits the iFIX WorkSpace.
• Accepts pulse or digital signals.
• Accesses up to 1024 digital I/O points in the same poll record.
• Does not support alarming.

Typical Uses

Example

Fields