Logic is performed in the controllers using numbered function codes and specs for each function code.

Function Codes are standard logic structures (ex. AND, OR, Timers, PID etc.). Function Codes use up blocks in the controller. Some function codes use up multiple blocks. Controllers usually allow 10,000 blocks.

The system uses redundant controllers (primary and backup).

Conventional Software Tags do not exist in the controller. They exist in multiple databases. (Composer and HMI).

Composer - for Harmony

Main tool to construct Process Logic

Tree based interface showing all:

• controllers or PCU's
• interface units or IU's
• consoles

Logic is constructed using CLD's (Control Logic Diagrams) Edited in Automation Architect (separate program that opens up)

CLD's can be named anything but they are usually numbered based on Cnet, Node, Controller with some suffix (ex. 101020),

Function Codes require using blocks. Each controller has a max of 10,000 blocks.
Right Click on PCU in Composer and go to Block Usage Map to see what blocks have been currently assigned to which function codes (double-click to go to CLD block is on)

Process Portal B

One of the graphic packages used as the HMI (or HSI) with the Bailey Infi90 DCS.

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Based on the graphics language SL-GMS (http://www.sl.com/) by Sherrill Lubinski.

Similar to Conductor NT in that it uses the Grafx editor for graphic creation and modification

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