Modes - Revision history

Marco-Guerini at 18:35, 28 December 2024

2024-12-28T18:35:41Z

← Older revision		Revision as of 18:35, 28 December 2024
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	[[File:Modes.png\|thumb\|~~The mode switch~~]]		[[File:Modes.png\|thumb\|An old render of the THAT Mode Switch]]

	An Analog Computer is operated by switching ~~its state~~ into different '''Modes'''. This allow control of the time-varying elements (the integrators) in the computer, which in turn effect the solution of a patched problem.		An Analog Computer is operated by switching it into different '''Modes'''. This allow control of the time-varying computing elements (the integrators) in the computer, which in turn effect the solution of a patched problem.
	In [[The Analog Thing]], the modes are chosen by turning an 8-position rotary switch in the lower right of the ~~front~~ panel.		In [[The Analog Thing]], the modes are chosen by turning an 8-position rotary switch in the lower right of the panel.

	The modes of [[The Analog Thing]] are as follows.		The modes of [[The Analog Thing]] are as follows.

Marco-Guerini at 18:34, 28 December 2024

2024-12-28T18:34:12Z

← Older revision		Revision as of 18:34, 28 December 2024
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	[[File:Modes.png\|thumb\|The mode switch]]		[[File:Modes.png\|thumb\|The mode switch]]

	An ~~analog computer can be in~~ different '''Modes''', ~~it can however be only~~ in ~~one mode at~~ a ~~time~~. In [[The Analog Thing]], the modes are chosen ~~with a~~ switch in the ~~upper~~ right ~~part~~ of the front panel ~~and explained in the following~~.		An Analog Computer is operated by switching its state into different '''Modes'''. This allow control of the time-varying elements (the integrators) in the computer, which in turn effect the solution of a patched problem.
			In [[The Analog Thing]], the modes are chosen by turning an 8-position rotary switch in the lower right of the front panel.

			The modes of [[The Analog Thing]] are as follows.

	== Minion Mode (<code>MINION</code>) ==		== Minion Mode (<code>MINION</code>) ==

Sven at 01:36, 24 July 2021

2021-07-24T01:36:53Z

← Older revision		Revision as of 01:36, 24 July 2021
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	== Minion Mode (<code>MINION</code>) ==		== Minion Mode (<code>MINION</code>) ==
	In this mode, The Analog Thing is remote-controlled by another The Analog Thing. See [[Daisy Chaining]] for details of how to use this mode. In case you don't have another Analog Thing, this mode is of no interest for you. It doesn't harm to have your Analog Thing in that mode in case nothing is connected, but don't be fooled it would be turned off -- the [[Voltmeter]] is powered off in this mode by intention.		In this mode, The Analog Thing is remote-controlled by another The Analog Thing. See [[Daisy Chaining]] for details of how to use this mode. In case you don't have another Analog Thing, this mode is of no interest for you. It doesn't harm to have your Analog Thing in that mode in case nothing is connected, but don't be fooled it would be turned off -- the [[Voltmeter]] is powered off in this mode by intention.

			<!-- Karl heinz: -->
			The first position is called MINION and is a remote controlled operation mode where several
			ANALOG THING devices can be coupled to a bigger analog computer. See the MINION section
			for more details.

	== Turned-Off Mode (<code>OFF</code>) ==		== Turned-Off Mode (<code>OFF</code>) ==
	In this mode, The Analog Thing is turned off. Please always remove the [[Power]] chord in order to make sure everything is free from electricity if you want to do something crazy with the electronics. Otherwise, it is completely fine to change the program also while the computer is running.		In this mode, The Analog Thing is turned off. Please always remove the [[Power]] chord in order to make sure everything is free from electricity if you want to do something crazy with the electronics. Otherwise, it is completely fine to change the program also while the computer is running.

			<!-- karl heinz -->
			In position OFF the incoming power is switched off electronically with a MOSFET transistor and
			power consumption is reduced to about 2 mA / 5 V or approx. 10 mW only. This is a safe
			position to connect or disconnect any cables. In any other mode the device is working with a
			typical quiescient current of about 300-350 mA / 5 V or 1.5-1.75 W.

	== Coefficient-Setting Mode (<code>COEF</code>) ==		== Coefficient-Setting Mode (<code>COEF</code>) ==
	This mode is all about fine tuning [[Coefficients/Potentiometers]]. See there for how to use this mode.		This mode is all about fine tuning [[Coefficients/Potentiometers]]. See there for how to use this mode.

			The COEFF mode is used to setup the coefficients in a system of differential equations, which
			are describing a specific system or task to be simulated with an analog computer. Up to 8
			coefficients are available on the ANALOG THING in the single mode or a multiple of 8 using
			several ANALOG THING connected together in the MINION mode.

			The coefficient 1-8 can be choosen with the coefficient switch and it's current value is shown
			on the display and can be changed turning the appropriate potentiometer (single-turn). The
			slower and more carefully the turn, the more accurate the value can be setup. Only positive
			values from 0.0 – 1.0 are possible. Negative values need an additional inverter or summer. It
			is helpful to optimize the system of differential equations to reduce neccessary inversions to a
			minimum.


	== Initial Conditions Mode (<code>IC</code>) ==		== Initial Conditions Mode (<code>IC</code>) ==
	In this mode, the integrators are charged for their [[Initial conditions]]. The yellow <code>IC</code> LED is glowing. This mode is helpful if you manually do a IC/OP cycle.		In this mode, the integrators are charged for their [[Initial conditions]]. The yellow <code>IC</code> LED is glowing. This mode is helpful if you manually do a IC/OP cycle.

			This is the initial condition of the analog computer. In this position all integrators are cleared
			and setup with a initial value. Initial values are setup using an unused coefficient except for an
			initial value of 0 which is the default value.


	== Operations Mode (<code>OP</code>) ==		== Operations Mode (<code>OP</code>) ==
	In this mode, the analog computer is in ''normal'' operating mode. That means, the integrators are freely integrating. Depending on your application, it can be interesting to have something running for several seconds or even minutes. The green <code>OP</code> LED is glowing. It may occur that you immediately run into some [[Overflow]] problem, in this case the red <code>OL</code> LED glows.		In this mode, the analog computer is in ''normal'' operating mode. That means, the integrators are freely integrating. Depending on your application, it can be interesting to have something running for several seconds or even minutes. The green <code>OP</code> LED is glowing. It may occur that you immediately run into some [[Overflow]] problem, in this case the red <code>OL</code> LED glows.

			The OP is the functional operation mode. Operation can be halted with switching to next HALT
			position and continued switching back to OP. Toggling between OP and HALT allows the user to
			measure and investigate the condition of the analog computer inbetween running mode.
			Switching back to IC will restart the program from the initial state while HALT will only
			interrupt the operation mode without changing conditions of variables.


	== Halting Mode (<code>HALT</code>) ==		== Halting Mode (<code>HALT</code>) ==
	In this mode, the analog computer is ''pausing'' the integrators. They hold their values and can be readily read off. This is useful for static analysis of the circuit, or for testing values with the Voltmeter. You can go back to Operations Mode at any time.		In this mode, the analog computer is ''pausing'' the integrators. They hold their values and can be readily read off. This is useful for static analysis of the circuit, or for testing values with the Voltmeter. You can go back to Operations Mode at any time.

			The HALT mode halts the current operation/program running for investigation of the current
			program and variables. Operation can be continued with switching back to OP.


	== Repetitive Mode (<code>REP</code>) ==		== Repetitive Mode (<code>REP</code>) ==
	In this mode, the analog computer is automatically and repeatedly switching between IC and OP mode. While the IC time is hard coded to {{fill}}, the OP time can be chosen within a range of minimum {{fill}} and maximum {{fill}} miliseconds with the slider called <code>OP TIME</code>.		In this mode, the analog computer is automatically and repeatedly switching between IC and OP mode. While the IC time is hard coded to {{fill}}, the OP time can be chosen within a range of minimum {{fill}} and maximum {{fill}} miliseconds with the slider called <code>OP TIME</code>.

			<!-- copied from prototype karl heinz -->
			The schematics below shows the realisation of the repeated operation which is a feature to
			visualize the signals in an Y/T oscilloscope view. There are 2 options available for long
			operation times (slow mode) from less than 100ms to 10 seconds and a faster mode REPF for
			operation times of less than 1ms to 100ms.


	== Fast Repetitive Mode (<code>REPF</code>) ==		== Fast Repetitive Mode (<code>REPF</code>) ==
	~~Similar~~ to ~~<code>REP</code>, but~~ the OP times ~~are divided by a factor {{fill}}~~.		REPF is the mode for faster operation and allows the setup in the range of 1ms to 100ms. In
			the REPF mode the IC time (initial setup) is reduced to about 1.5ms. This is realized with the
			analog switches in the time control schematics. The pictures below show the operation times of
			10ms and 1ms.


	[[Category:Components of The Analog Thing]]		[[Category:Components of The Analog Thing]]

Sven: Created page with "The mode switch An analog computer can be in different '''Modes''', it can however be only in one mode at a time. In The Analog Thing, the modes..."

2021-07-23T22:07:09Z

Created page with "thumb|The mode switch An analog computer can be in different '''Modes''', it can however be only in one mode at a time. In The Analog Thing, the modes..."

New page

[[File:Modes.png|thumb|The mode switch]]

An analog computer can be in different '''Modes''', it can however be only in one mode at a time. In [[The Analog Thing]], the modes are chosen with a switch in the upper right part of the front panel and explained in the following.

== Minion Mode (<code>MINION</code>) ==
In this mode, The Analog Thing is remote-controlled by another The Analog Thing. See [[Daisy Chaining]] for details of how to use this mode. In case you don't have another Analog Thing, this mode is of no interest for you. It doesn't harm to have your Analog Thing in that mode in case nothing is connected, but don't be fooled it would be turned off -- the [[Voltmeter]] is powered off in this mode by intention.

== Turned-Off Mode (<code>OFF</code>) ==
In this mode, The Analog Thing is turned off. Please always remove the [[Power]] chord in order to make sure everything is free from electricity if you want to do something crazy with the electronics. Otherwise, it is completely fine to change the program also while the computer is running.

== Coefficient-Setting Mode (<code>COEF</code>) ==
This mode is all about fine tuning [[Coefficients/Potentiometers]]. See there for how to use this mode.

== Initial Conditions Mode (<code>IC</code>) ==
In this mode, the integrators are charged for their [[Initial conditions]]. The yellow <code>IC</code> LED is glowing. This mode is helpful if you manually do a IC/OP cycle.

== Operations Mode (<code>OP</code>) ==
In this mode, the analog computer is in ''normal'' operating mode. That means, the integrators are freely integrating. Depending on your application, it can be interesting to have something running for several seconds or even minutes. The green <code>OP</code> LED is glowing. It may occur that you immediately run into some [[Overflow]] problem, in this case the red <code>OL</code> LED glows.

== Halting Mode (<code>HALT</code>) ==
In this mode, the analog computer is ''pausing'' the integrators. They hold their values and can be readily read off. This is useful for static analysis of the circuit, or for testing values with the Voltmeter. You can go back to Operations Mode at any time.

== Repetitive Mode (<code>REP</code>) ==
In this mode, the analog computer is automatically and repeatedly switching between IC and OP mode. While the IC time is hard coded to {{fill}}, the OP time can be chosen within a range of minimum {{fill}} and maximum {{fill}} miliseconds with the slider called <code>OP TIME</code>.

== Fast Repetitive Mode (<code>REPF</code>) ==
Similar to <code>REP</code>, but the OP times are divided by a factor {{fill}}.

[[Category:Components of The Analog Thing]]