1014 User Guide - Revision history

Mparadis at 14:25, 9 May 2018

2018-05-09T14:25:17Z

← Older revision		Revision as of 14:25, 9 May 2018
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			__NOINDEX__
	[[Category:UserGuide]]		[[Category:UserGuide]]
	{{UserguideTOC\|1014.jpg\|1014}}		{{UserguideTOC\|1014.jpg\|1014}}

Mparadis: /* Relays */

2016-06-06T20:50:07Z

Relays

← Older revision		Revision as of 20:50, 6 June 2016
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	===Relays===		===Relays===

	A relay is an electrically-controlled switch. Although many types of electrical switches exist, a relay’s mechanical nature gives it the advantage of reliability and current-switching capacity. The main disadvantage to using mechanical relays is their limited life-span, as opposed to solid state relays who do not suffer from this drawback. For more information, check the [[Mechanical Relay Primer]] and the [[Solid State Relay Primer]].		A relay is an electrically-controlled switch. Although many types of electrical switches exist, a relay’s mechanical nature gives it the advantage of reliability and current-switching capacity. The main disadvantage to using mechanical relays is their limited life-span, as opposed to solid state relays who do not suffer from this drawback. For more information about how relays work and how to use them, check the [[Mechanical Relay Primer]] and the [[Solid State Relay Primer]].

	===Wetting Current===		===Wetting Current===

Mparadis: /* Technical Details */

2016-06-06T20:45:38Z

Technical Details

← Older revision		Revision as of 20:45, 6 June 2016
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	A relay is an electrically-controlled switch. Although many types of electrical switches exist, a relay’s mechanical nature gives it the advantage of reliability and current-switching capacity. The main disadvantage to using mechanical relays is their limited life-span, as opposed to solid state relays who do not suffer from this drawback. For more information, check the [[Mechanical Relay Primer]] and the [[Solid State Relay Primer]].		A relay is an electrically-controlled switch. Although many types of electrical switches exist, a relay’s mechanical nature gives it the advantage of reliability and current-switching capacity. The main disadvantage to using mechanical relays is their limited life-span, as opposed to solid state relays who do not suffer from this drawback. For more information, check the [[Mechanical Relay Primer]] and the [[Solid State Relay Primer]].

	~~===Using a Digital Output Relay===~~

	~~[[File:1014_2_Relay_Diagram.jpg\|right\|300px\|link=]]~~

	Relays have a connection scheme determined by the arrangement of contacts within the relay. Because relays are a type of switch, they are defined in the same way other electromechanical switches are defined.

	In switch schemes, the number of poles represents the number of common terminals a switch has, and the number of throws represents the number of switchable terminals that exist for each pole. The relays used in the InterfaceKit 0/0/4 are SPDT relays: single pole, double throw. The internal construction of this type of relay is depicted in the diagram above. Many other types of relays exist: SPST, DPDT, and DPST, to name a few.

	In an SPDT relay, one of the throw terminals is labelled Normally Closed (NC), and the other is labelled Normally Open (NO). As the name indicates, the normally closed terminal is the terminal connected to common when the relay coil is not powered. When the relay coil is energized by the relay control circuit, the electromagnetic field of the coil forces the switch element inside the relay to break its contact with the normally closed terminal and make contact with the normally open terminal. The switch element would then connect the normally open terminal and the common terminal.
	~~<br clear=all>~~

	~~===Using Relays as an H-Bridge for Motor Forward/Reverse===~~

	~~[[File:1014_1_Bridge_Diagram.jpg\|right\|450px\|link=]]~~

	Connect the load (typically a DC Motor) to the COM terminals of the relay. The NormallyOpen (NO) terminals are connected to the power supply (VCC), and the Normally-Closed (NC) terminals are connected to the ground (GND) of the power supply. You can toggle the corresponding output to switch the relays.

	Looking at the diagram, when LeftCtrl is enabled and RightCtrl is disabled, the current will flow from the NO terminal of relay K1 through the motor and into the NC terminal of relay K2. This will cause the motor to rotate in one direction.

	Similarily, if LeftCtrl is disabled and RightCtrl is enabled, the current will flow from the NO terminal of relay K2 through the motor and into the NC terminal of relay K1. This will cause the motor to rotate in the opposite direction.

	When both LeftCtrl and RightCtrl are disabled, both ends of the motor will be shorted to ground and no current will flow. When both leftCtrl and RightCtrl are enabled, both ends of the motor will be shorted to VCC and again, no current will flow.

	~~<br clear=all>~~

	===Wetting Current===		===Wetting Current===

Mparadis: /* Product History */

2016-04-19T20:23:37Z

Product History

← Older revision		Revision as of 20:23, 19 April 2016
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	{{UGrow2\|1014_0\|August 2002 \|0\|700\|Product Release}}		{{UGrow2\|1014_0\|August 2002 \|0\|700\|Product Release}}
	{{UGrow2\|1014_0\|January 2004\|0\|704\|Added State Echoing}}		{{UGrow2\|1014_0\|January 2004\|0\|704\|Added State Echoing}}
	{{UGrow2\|1014_1\|May 2008 \|1\|~~704~~\|Terminal Blocks now accept 12-24 AWG wire, PCB increased to accommodate larger connectors.}}		{{UGrow2\|1014_0\|January 2006\|0\|705\| }}
			{{UGrow2\|1014_0\|July 2007 \|0\|706\| }}
			{{UGrow2\|1014_1\|May 2008 \|1\|707\|Terminal Blocks now accept 12-24 AWG wire, PCB increased to accommodate larger connectors.}}
	{{UGrow2\|1014_2\|March 2010 \|2\|707\|Switched to Mini-USB connector}}		{{UGrow2\|1014_2\|March 2010 \|2\|707\|Switched to Mini-USB connector}}

Mparadis: /* Product History */

2014-04-01T16:40:06Z

Product History

← Older revision		Revision as of 16:40, 1 April 2014
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	==Product History==		==Product History==
	{{UGhist}}		{{UGhist}}
	{{~~UGrow~~\|August 2002 \|0\|700\|Product Release}}		{{UGrow2\|1014_0\|August 2002 \|0\|700\|Product Release}}
	{{~~UGrow~~\|January 2004\|0\|704\|Added State Echoing}}		{{UGrow2\|1014_0\|January 2004\|0\|704\|Added State Echoing}}
	{{~~UGrow~~\|May 2008 \|1\|704\|Terminal Blocks now accept 12-24 AWG wire, PCB increased to accommodate larger connectors.}}		{{UGrow2\|1014_1\|May 2008 \|1\|704\|Terminal Blocks now accept 12-24 AWG wire, PCB increased to accommodate larger connectors.}}
	{{~~UGrow~~\|March 2010 \|2\|707\|Switched to Mini-USB connector}}		{{UGrow2\|1014_2\|March 2010 \|2\|707\|Switched to Mini-USB connector}}

Burley at 15:08, 10 August 2012

2012-08-10T15:08:12Z

← Older revision		Revision as of 15:08, 10 August 2012
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	[[Category:UserGuide]]		[[Category:UserGuide]]
			{{UserguideTOC\|1014.jpg\|1014}}
	==Getting Started==		==Getting Started==

Mparadis at 15:39, 26 July 2012

2012-07-26T15:39:02Z

← Older revision		Revision as of 15:39, 26 July 2012
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			[[Category:UserGuide]]

	==Getting Started==		==Getting Started==

Mparadis at 21:15, 19 July 2012

2012-07-19T21:15:30Z

← Older revision		Revision as of 21:15, 19 July 2012
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	~~[[Category:DELETE_ME_BEFORE_WE_GO_LIVE]]~~

	==Getting Started==		==Getting Started==

Mparadis: Created page with "Category:DELETE_ME_BEFORE_WE_GO_LIVE ==Getting Started== ===Checking the Contents=== {{UGbox| '''You should have received:''' * A PhidgetInterfaceKit 0/0/4 * A Mini-USB ..."

2012-07-19T21:15:18Z

Created page with "Category:DELETE_ME_BEFORE_WE_GO_LIVE ==Getting Started== ===Checking the Contents=== {{UGbox| '''You should have received:''' * A PhidgetInterfaceKit 0/0/4 * A Mini-USB ..."

New page

[[Category:DELETE_ME_BEFORE_WE_GO_LIVE]]

==Getting Started==

===Checking the Contents===
{{UGbox|
'''You should have received:'''
* A PhidgetInterfaceKit 0/0/4
* A Mini-USB Cable
|
'''In order to test your new Phidget you will also need:'''
* 9V battery
* A battery connector
* A 9V incandescent bulb with wires
||}}

===Connecting the Pieces===
{{UGbox|
# Connect the red/positive (+) wire from the battery connector to OC (Common) connector on the InterfaceKit.
# Connect the black/negative (-) wire from the battery connector to one of the bulb wire.
# Connect the other bulb wire to the NO (Normally Open) connector on the InterfaceKit.
# Connect the InterfaceKit to your PC using the USB cable.
|
[[File:1014_2_Connecting_The_Hardware.jpg|400px|link=]]
||}}

===Testing Using Windows 2000 / XP / Vista / 7===

{{UGwin}}

===Running Phidgets Sample Program===

{{UGwin2|'''InterfaceKit-full'''}}

{{UGbox|
Double Click on the [[File:Ph.jpg|link=]] icon to activate the Phidget Control Panel and make sure that '''Phidget InterfaceKit 0/0/4''' is properly attached to your PC.
|[[File:1014_2_Control_Panel_Screen.jpg|400px|link=]]
|
# Double Click on Phidget InterfaceKit 0/0/4 in the Phidget Control Panel to bring up InterfaceKit-full and check that the box labelled Attached contains the word True.
# Click on the first Digital Out box. Atick mark appears in the box and the bulb lights up. Click on the box again. The tick mark goes away and the light goes out. If you unplug the USB cable while the light is on, it will go off. The bottom row shows the status of the request, while the top row displays the status of the digital output as reported by the device.
# Move the positive (+) wire from NO to NC (normally closed). The light is now on when the Digital box has no tick mark. Clicking on the box turns the light off. If you unplug the USB cable when the light is on, it will stay on.
|[[File:1014_2_InterfaceKit_Screen.jpg|400px|link=]]
}}

===Testing Using Mac OS X===

{{UGmac|Phidget InterfaceKit 0/0/4|InterfaceKit-full}}

===Using Linux===

{{UGlinux}}

===Using Windows Mobile / CE 5.0 / CE 6.0===

{{UGce}}

==Technical Details==

===Relays===

A relay is an electrically-controlled switch. Although many types of electrical switches exist, a relay’s mechanical nature gives it the advantage of reliability and current-switching capacity. The main disadvantage to using mechanical relays is their limited life-span, as opposed to solid state relays who do not suffer from this drawback. For more information, check the [[Mechanical Relay Primer]] and the [[Solid State Relay Primer]].

===Using a Digital Output Relay===

[[File:1014_2_Relay_Diagram.jpg|right|300px|link=]]

Relays have a connection scheme determined by the arrangement of contacts within the relay. Because relays are a type of switch, they are defined in the same way other electromechanical switches are defined.

In switch schemes, the number of poles represents the number of common terminals a switch has, and the number of throws represents the number of switchable terminals that exist for each pole. The relays used in the InterfaceKit 0/0/4 are SPDT relays: single pole, double throw. The internal construction of this type of relay is depicted in the diagram above. Many other types of relays exist: SPST, DPDT, and DPST, to name a few.

In an SPDT relay, one of the throw terminals is labelled Normally Closed (NC), and the other is labelled Normally Open (NO). As the name indicates, the normally closed terminal is the terminal connected to common when the relay coil is not powered. When the relay coil is energized by the relay control circuit, the electromagnetic field of the coil forces the switch element inside the relay to break its contact with the normally closed terminal and make contact with the normally open terminal. The switch element would then connect the normally open terminal and the common terminal.
<br clear=all>

===Using Relays as an H-Bridge for Motor Forward/Reverse===

[[File:1014_1_Bridge_Diagram.jpg|right|450px|link=]]

Connect the load (typically a DC Motor) to the COM terminals of the relay. The NormallyOpen (NO) terminals are connected to the power supply (VCC), and the Normally-Closed (NC) terminals are connected to the ground (GND) of the power supply. You can toggle the corresponding output to switch the relays.

Looking at the diagram, when LeftCtrl is enabled and RightCtrl is disabled, the current will flow from the NO terminal of relay K1 through the motor and into the NC terminal of relay K2. This will cause the motor to rotate in one direction.

Similarily, if LeftCtrl is disabled and RightCtrl is enabled, the current will flow from the NO terminal of relay K2 through the motor and into the NC terminal of relay K1. This will cause the motor to rotate in the opposite direction.

When both LeftCtrl and RightCtrl are disabled, both ends of the motor will be shorted to ground and no current will flow. When both leftCtrl and RightCtrl are enabled, both ends of the motor will be shorted to VCC and again, no current will flow.

<br clear=all>

===Wetting Current===

When a relay is in one switch position for a period of time, oxidation of the open contact(s) can occur. Depending upon the internal coating material of the contacts, oxide films of varying density will be displaced upon the surface of open contacts; this film acts as an insulator to current flow. When the relay is switched, a certain amount of current flowing through the contacts, known as the wetting current, is required to remove the film of oxides and ensure proper conduction. Because of this requirement, these relays are not reliable for signal switching. Check the specification table for your relay board to find out the Minimum Load Current ("Wetting Current").

===Load Noise===
If highly inductive loads are used with the InterfaceKit, it is recommended that a noise limiting component be used to prevent damage to the device. An MOV, TVS diode, or kickback diode (for DC applications) shunted across the load will assist in dissipating voltage transients.

==API==
{{UGapih}}

===Functions===
{{UGapi|int OutputCount() [get] : Constant <nowiki>=</nowiki> 4
|Returns the number of digital outputs supported by this PhidgetInterfaceKit.
}}

{{UGapi|bool OutputState (int OutputIndex) [get,set]
|Sets/returns the state of a digital output. Setting this to true will activate the output, False is the default state. Reading the OutputState immediately after setting it will not return the value set - it will return the last state reported by the Phidget.
}}
===Events===
{{UGapi|OnOutputChange(int OutputIndex, bool State), [event]
|An event that is issued when the state of a digital output changes.
}}
==Product History==
{{UGhist}}
{{UGrow|August 2002 |0|700|Product Release}}
{{UGrow|January 2004|0|704|Added State Echoing}}
{{UGrow|May 2008 |1|704|Terminal Blocks now accept 12-24 AWG wire, PCB increased to accommodate larger connectors.}}
{{UGrow|March 2010 |2|707|Switched to Mini-USB connector}}

← Older revision		Revision as of 20:23, 19 April 2016
Line 112:		Line 112:
	{{UGrow2\|1014_0\|August 2002 \|0\|700\|Product Release}}		{{UGrow2\|1014_0\|August 2002 \|0\|700\|Product Release}}
	{{UGrow2\|1014_0\|January 2004\|0\|704\|Added State Echoing}}		{{UGrow2\|1014_0\|January 2004\|0\|704\|Added State Echoing}}
	{{UGrow2\|1014_1\|May 2008 \|1\|~~704~~\|Terminal Blocks now accept 12-24 AWG wire, PCB increased to accommodate larger connectors.}}		{{UGrow2\|1014_0\|January 2006\|0\|705\| }}
			{{UGrow2\|1014_0\|July 2007 \|0\|706\| }}
			{{UGrow2\|1014_1\|May 2008 \|1\|707\|Terminal Blocks now accept 12-24 AWG wire, PCB increased to accommodate larger connectors.}}
	{{UGrow2\|1014_2\|March 2010 \|2\|707\|Switched to Mini-USB connector}}		{{UGrow2\|1014_2\|March 2010 \|2\|707\|Switched to Mini-USB connector}}