# Microgrid controller configuration-revision reference

Canonical URL: https://eloragrid.ai/symbols/microgrid-controller-configuration-revision-reference
Publisher: Elora Grid
Updated: 2026-11-03
Lookup label: MCCR
Drawing use: Schematic
Reference families: Manufacturer

Representation: Functional block
Installation focus: microgrids
Input: Drawing and control map
Output: Controller revision reference

Links the assigned control functions and point mappings to their reviewed configuration revision.

## In plain English

### What this block does

Links the assigned control functions and point mappings to their reviewed configuration revision.

### A simple example

In a microgrid control room, the operator can see source availability, active constraints and current operating mode. A communication failure should remain distinguishable from an electrical resource failure. For this reference, the drawing identifies “Drawing and control map” at the input and “Controller revision reference” at the output. Installed and reviewed revisions must agree.

### What the drawings help you do

Start at the named input: Drawing and control map. Identify its source device or document and the state represented on the drawing. Follow the named output: Controller revision reference. Cross-reference its destination and separate the command from confirmation that the equipment responded.

### Terms

- Input: Drawing and control map
- Output: Controller revision reference
- Application reference: An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections.

Concept diagram: Drawing and control map → MCCR → Controller revision reference
A reading guide. The entry's original illustration and input/output facts describe this application.

- [Microgrid control systems](https://selinc.com/services/microgrids-power-management/microgrid-control-systems/)


## What it represents

Links the assigned control functions and point mappings to their reviewed configuration revision. Microgrid supervision coordinates measurements, control authority and resource communication without replacing local protection. Each resource value needs a named measurement boundary, freshness condition and intended control use.
In a microgrid control room, the operator can see source availability, active constraints and current operating mode. A communication failure should remain distinguishable from an electrical resource failure. For this reference, the drawing identifies “Drawing and control map” at the input and “Controller revision reference” at the output. Installed and reviewed revisions must agree.
Identify signal ownership, quality flags, control priority and loss-of-data behavior. These functional references do not certify cyber security, closed-loop performance or equipment interoperability. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation.

## How to read it

- Start at the named input: Drawing and control map. Identify its source device or document and the state represented on the drawing.
- Follow the named output: Controller revision reference. Cross-reference its destination and separate the command from confirmation that the equipment responded.
- Installed and reviewed revisions must agree.
- Identify signal ownership, quality flags, control priority and loss-of-data behavior. These functional references do not certify cyber security, closed-loop performance or equipment interoperability.

## Information to show or reference

- Label the source and connection reference for drawing and control map.
- Identify the destination and defined state of controller revision reference.
- Record the equipment or control-document revision supporting this functional block.
- Check this application limit in the project design: Installed and reviewed revisions must agree.

## Important distinction

Installed and reviewed revisions must agree. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.

## Facts

- Representation: Functional block
- Installation focus: Microgrids
- Input / boundary: Drawing and control map
- Output / connection: Controller revision reference
- Lookup label: MCCR is a library lookup label, not a standard device designation.

## Public references

- [Microgrid control systems](https://selinc.com/services/microgrids-power-management/microgrid-control-systems/) — SEL. Public technical context for microgrid supervisory and communication interfaces. Active and reactive power, generation, load control, operating reserves and system supervision. The application text and educational graphic are independently authored; the publisher does not certify this representation.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.