---
title: "Simulators"
---

# Simulators

> There are 3 simulator drivers in Ignition, and all can be used to read and write tags without any network or PLC connection.

## Generic Simulator
The generic simulator provides a variety of tags that offer different data types and value generation styles. For example, there are ramps, sine waves, and random values. Additionally, there is a set of static writable tags whose values will persist while the device is running.

There are no configurable settings for the generic simulator.

### Simulator tags

#### Read Only
Static values that do not change. Writing is disabled on these tags. 

|Tag Name|Value|
|:---|:---|
|ReadOnlyBoolean1|False|
|ReadOnlyBoolean2|True| 
|ReadOnlyShort1|1|  
|ReadOnlyShort2|2| 
|ReadOnlyInteger1|1| 
|ReadOnlyInteger2|2| 
|ReadOnlyInteger3|3| 
|ReadOnlyInteger4|4| 
|ReadOnlyInteger5|5| 
|ReadOnlyLong1|1| 
|ReadOnlyLong2|2| 
|ReadOnlyFloat1|1.1| 
|ReadOnlyFloat2|1.2| 
|ReadOnlyDouble1|1.1| 
|ReadOnlyDouble2|1.2| 
|ReadOnlyString1|ABCDEFG"| 
|ReadOnlyString2|"ZYXWVUT"|

#### Writable
Tags with a persistent value that can be written to. 

|Tag Name|Value|
|:---|:---|
|WriteableBoolean1|False| 
|WriteableBoolean2|False| 
|WriteableShort1|0| 
|WriteableShort2|0| 
|WriteableInteger1|0| 
|WriteableInteger2|0| 
|WriteableLong1|0| 
|WriteableLong2|0| 
|WriteableFloat1|0| 
|WriteableFloat2|0| 
|WriteableDouble1|0| 
|WriteableDouble2 |0| 
|WriteableString1|'' (empty string)| 
|WriteableString2|'' (empty string)|

#### Random
Tags with values that change randomly at a fixed rate.

|Tag Name|Value|
|:---|:---|
|RandomBoolean1|10 sec| 
|RandomBoolean2|10 sec| 
|RandomShort1|5 sec| 
|RandomShort2|5 sec| 
|RandomInteger1|1 sec| 
|RandomInteger2|1 sec| 
|RandomLong1|2 sec| 
|RandomLong2|2 sec| 
|RandomDouble1|10 sec| 
|RandomDouble2|10 sec|

#### Sine
Tags that follow a sine wave over a set period. The value transitions from the low value, to the high value, and finally back to the low value over a single period. 

|Tag Name|Low Value| High Value|Period|
|:---|:---|:---|:---|
|Sine0|-100|100|60 seconds|
|Sine1|-10|10|10 seconds|
|Sine2|0|50|15 seconds|
|Sine3|-40|60|20 seconds|
|Sine4|-100|100|40 seconds|
|Sine5 |-100|100|60 seconds|
|Sine6|-10|10|10 seconds|
|Sine7|.-20|30|15 seconds|
|Sine8|-40|60|20 seconds|
|Sine9|-85|115|40 seconds|

#### Ramp
Tags that start at a low value, and increase to a high value over a set rate. Once the high value is reached, they reset back to the low value. 

|Tag Name|Low Value| High Value|Period|
|:---|:---|:---|:---|
|Ramp0|0|1000|75 seconds|
|Ramp1|0|100|10 seconds|
|Ramp2|-25|175|15 seconds|
|Ramp3|10|310|20 seconds|
|Ramp4|0|400|40 seconds|
|Ramp5|0|500|60 seconds|
|Ramp6|0|600|12.5 seconds|
|Ramp7|-5|695|17.5 seconds|
|Ramp8|10|810|30 seconds|
|Ramp9|-10|890|50 seconds|

#### Realistic
Tags that change value by having a number added to them at a fixed rate. The number added is determined by randomly selecting between the low and high values on the tables listed below. 

|Tag Name|Low Value| High Value|Rate of Change|
|:---|:---|:---|:---|
|Realistic0|-50|50|5000 milliseconds|
|Realistic1|-50|50|500 milliseconds|
|Realistic2|-50|50|1000 milliseconds|
|Realistic3|-50|50|1500 milliseconds|
|Realistic4|-50|50|2000 milliseconds|
|Realistic5|-50|50|2500 milliseconds|
|Realistic6|-50|50|3000 milliseconds|
|Realistic7|-50|50|3500 milliseconds|
|Realistic8|-50|50|4000 milliseconds|
|Realistic9|-50|50|4500 milliseconds|

## Allen Bradley SLC Simulator
The SLC simulator driver creates a simple device whose address structure mimics a basic SLC structure. There are currently no configurable parameters.

## Simulators Dairy Demo Simulator
A simulator for use with the legacy IA Dairy Demo project. It has a ControlLogix like structure with Compressor, Tank, Motor tags and more.