PLC Design

This is common when the Door shows one unique state at a time (usually top priority state, color animations only), typically in simplified environments, where the doors are showing secure/unsecure and maybe one or two other states. A door will only ever be in a single state at any given time. In this case, all logic is performed in the PLC, and the IPFusion icons reflect a single state mapped to a single value.

Example

Status Word Bit	Status Word Int	Status	Visual Description	Preview
1	2	Secure	Bright Green, Solid
2	4	Secure REX Disabled	Dark Green, Solid
3	8	Unsecure	Bright Red, Solid
4	16	Unsecure REX Disabled	Dark Red, Solid
5	32	Forced Open Alarm	Orange, Flashing
6	64	Fault/No Communication	Magenta, Solid
7	128	Acknowledged	Bright Grey, Solid

In contrast, a more granular approach can be adopted to enhance situational awareness or assist with color blindness. This method involves breaking out the door’s various elements into multiple components, such as Door Position, Lock Position, Masked Status, Request to Exit, or Alarms. Each component is represented by an individual bit in the 16-bit Status Word, and visually represented by a different icon component. This allows operators to see a comprehensive view of the door status.

The status of each of the door components should be defined in the PLC with individual bits, so within IPFusion bits can be combined with "AND" and "OR" to define the visual representation.