This is the description of the Mathematica API bindings for the Industrial Quad Relay Bricklet 2.0. General information and technical specifications for the Industrial Quad Relay Bricklet 2.0 are summarized in its hardware description.
An installation guide for the Mathematica API bindings is part of their general description.
The example code below is Public Domain (CC0 1.0).
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | Needs["NETLink`"]
LoadNETAssembly["Tinkerforge",NotebookDirectory[]<>"../../.."]
host="localhost"
port=4223
uid="XYZ"(*Change XYZ to the UID of your Industrial Quad Relay Bricklet 2.0*)
(*Create IPConnection and device object*)
ipcon=NETNew["Tinkerforge.IPConnection"]
iqr=NETNew["Tinkerforge.BrickletIndustrialQuadRelayV2",uid,ipcon]
ipcon@Connect[host,port]
(*Turn relays alternating on/off 10 times with 100 ms delay*)
For[i=0,i<10,i++,
Pause[0.1];
iqr@SetValue[{True,False,False,False}];
Pause[0.1];
iqr@SetValue[{False,True,False,False}];
Pause[0.1];
iqr@SetValue[{False,False,True,False}];
Pause[0.1];
iqr@SetValue[{False,False,False,True}]
]
(*Clean up*)
ipcon@Disconnect[]
ReleaseNETObject[iqr]
ReleaseNETObject[ipcon]
|
Generally, every function of the Mathematica bindings that returns a value can
throw a Tinkerforge.TimeoutException
. This exception gets thrown if the
device did not respond. If a cable based connection is used, it is
unlikely that this exception gets thrown (assuming nobody plugs the
device out). However, if a wireless connection is used, timeouts will occur
if the distance to the device gets too big.
Since .NET/Link does not support multiple return values directly, we use the
out
keyword to return multiple values from a function. For further
information about the out
keyword in .NET/Link see the corresponding
Mathematica .NET/Link documentation.
The namespace for all Brick/Bricklet bindings and the IPConnection is
Tinkerforge.*
.
BrickletIndustrialQuadRelayV2
[uid, ipcon] → industrialQuadRelayV2¶Parameters: |
|
---|---|
Returns: |
|
Creates an object with the unique device ID uid
:
industrialQuadRelayV2=NETNew["Tinkerforge.BrickletIndustrialQuadRelayV2","YOUR_DEVICE_UID",ipcon]
This object can then be used after the IP Connection is connected.
The .NET runtime has built-in garbage collection that frees objects that are no longer in use by a program. But because Mathematica can not automatically tell when a Mathematica "program" doesn't use a .NET object anymore, this has to be done by the program. For this the ReleaseNETObject[] function is used in the examples.
For further information about object management in .NET/Link see the corresponding Mathematica .NET/Link documentation.
BrickletIndustrialQuadRelayV2
@
SetValue
[{value1, value2, value3, value4}] → Null¶Parameters: |
|
---|
Sets the value of all four relays. A value of true closes the relay and a value of false opens the relay.
Use SetSelectedValue[]
to only change one relay.
All running monoflop timers will be aborted if this function is called.
BrickletIndustrialQuadRelayV2
@
GetValue
[] → {value1, value2, value3, value4}¶Returns: |
|
---|
Returns the values as set by SetValue[]
.
BrickletIndustrialQuadRelayV2
@
SetChannelLEDConfig
[channel, config] → Null¶Parameters: |
|
---|
Each channel has a corresponding LED. You can turn the LED off, on or show a heartbeat. You can also set the LED to "Channel Status". In this mode the LED is on if the channel is high and off otherwise.
The following constants are available for this function:
For config:
BrickletIndustrialQuadRelayV2
@
GetChannelLEDConfig
[channel] → config¶Parameters: |
|
---|---|
Returns: |
|
Returns the channel LED configuration as set by SetChannelLEDConfig[]
The following constants are available for this function:
For config:
BrickletIndustrialQuadRelayV2
@
SetMonoflop
[channel, value, time] → Null¶Parameters: |
|
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Configures a monoflop of the specified channel.
The second parameter is the desired value of the specified channel. A true means relay closed and a false means relay open.
The third parameter indicates the time that the channels should hold the value.
If this function is called with the parameters (0, 1, 1500) channel 0 will close and in 1.5s channel 0 will open again
A monoflop can be used as a fail-safe mechanism. For example: Lets assume you have a RS485 bus and a Industrial Quad Relay Bricklet 2.0 connected to one of the slave stacks. You can now call this function every second, with a time parameter of two seconds and channel 0 closed. Channel 0 will be closed all the time. If now the RS485 connection is lost, then channel 0 will be opened in at most two seconds.
BrickletIndustrialQuadRelayV2
@
GetMonoflop
[channel, out value, out time, out timeRemaining] → Null¶Parameters: |
|
---|---|
Output Parameters: |
|
Returns (for the given channel) the current value and the time as set by
SetMonoflop[]
as well as the remaining time until the value flips.
If the timer is not running currently, the remaining time will be returned as 0.
BrickletIndustrialQuadRelayV2
@
SetSelectedValue
[channel, value] → Null¶Parameters: |
|
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Sets the output value of the specified channel without affecting the other channels.
A running monoflop timer for the specified channel will be aborted if this function is called.
BrickletIndustrialQuadRelayV2
@
GetSPITFPErrorCount
[out errorCountAckChecksum, out errorCountMessageChecksum, out errorCountFrame, out errorCountOverflow] → Null¶Output Parameters: |
|
---|
Returns the error count for the communication between Brick and Bricklet.
The errors are divided into
The errors counts are for errors that occur on the Bricklet side. All Bricks have a similar function that returns the errors on the Brick side.
BrickletIndustrialQuadRelayV2
@
SetStatusLEDConfig
[config] → Null¶Parameters: |
|
---|
Sets the status LED configuration. By default the LED shows communication traffic between Brick and Bricklet, it flickers once for every 10 received data packets.
You can also turn the LED permanently on/off or show a heartbeat.
If the Bricklet is in bootloader mode, the LED is will show heartbeat by default.
The following constants are available for this function:
For config:
BrickletIndustrialQuadRelayV2
@
GetStatusLEDConfig
[] → config¶Returns: |
|
---|
Returns the configuration as set by SetStatusLEDConfig[]
The following constants are available for this function:
For config:
BrickletIndustrialQuadRelayV2
@
GetChipTemperature
[] → temperature¶Returns: |
|
---|
Returns the temperature as measured inside the microcontroller. The value returned is not the ambient temperature!
The temperature is only proportional to the real temperature and it has bad accuracy. Practically it is only useful as an indicator for temperature changes.
BrickletIndustrialQuadRelayV2
@
Reset
[] → Null¶Calling this function will reset the Bricklet. All configurations will be lost.
After a reset you have to create new device objects, calling functions on the existing ones will result in undefined behavior!
BrickletIndustrialQuadRelayV2
@
GetIdentity
[out uid, out connectedUid, out position, out {hardwareVersion1, hardwareVersion2, hardwareVersion3}, out {firmwareVersion1, firmwareVersion2, firmwareVersion3}, out deviceIdentifier] → Null¶Output Parameters: |
|
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Returns the UID, the UID where the Bricklet is connected to, the position, the hardware and firmware version as well as the device identifier.
The position can be 'a', 'b', 'c', 'd', 'e', 'f', 'g' or 'h' (Bricklet Port). A Bricklet connected to an Isolator Bricklet is always at position 'z'.
The device identifier numbers can be found here. There is also a constant for the device identifier of this Bricklet.
Callbacks can be registered to receive time critical or recurring data from the device. The registration is done by assigning a function to a callback property of the device object:
MyCallback[sender_,value_]:=Print["Value: "<>ToString[value]] AddEventHandler[industrialQuadRelayV2@ExampleCallback,MyCallback]
For further information about event handling using .NET/Link see the corresponding Mathematica .NET/Link documentation.
The available callback property and their type of parameters are described below.
Note
Using callbacks for recurring events is always preferred compared to using getters. It will use less USB bandwidth and the latency will be a lot better, since there is no round trip time.
BrickletIndustrialQuadRelayV2
@
MonoflopDoneCallback
[sender, channel, value]¶Callback Parameters: |
|
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This callback is triggered whenever a monoflop timer reaches 0. The parameters contain the channel and the current value of the channel (the value after the monoflop).
Virtual functions don't communicate with the device itself, but operate only on the API bindings device object. They can be called without the corresponding IP Connection object being connected.
BrickletIndustrialQuadRelayV2
@
GetAPIVersion
[] → {apiVersion1, apiVersion2, apiVersion3}¶Output Parameters: |
|
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Returns the version of the API definition implemented by this API bindings. This is neither the release version of this API bindings nor does it tell you anything about the represented Brick or Bricklet.
BrickletIndustrialQuadRelayV2
@
GetResponseExpected
[functionId] → responseExpected¶Parameters: |
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Returns: |
|
Returns the response expected flag for the function specified by the function ID parameter. It is true if the function is expected to send a response, false otherwise.
For getter functions this is enabled by default and cannot be disabled,
because those functions will always send a response. For callback configuration
functions it is enabled by default too, but can be disabled by
SetResponseExpected[]
. For setter functions it is disabled by default
and can be enabled.
Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is sent and errors are silently ignored, because they cannot be detected.
The following constants are available for this function:
For functionId:
BrickletIndustrialQuadRelayV2
@
SetResponseExpected
[functionId, responseExpected] → Null¶Parameters: |
|
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Changes the response expected flag of the function specified by the function ID parameter. This flag can only be changed for setter (default value: false) and callback configuration functions (default value: true). For getter functions it is always enabled.
Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is sent and errors are silently ignored, because they cannot be detected.
The following constants are available for this function:
For functionId:
BrickletIndustrialQuadRelayV2
@
SetResponseExpectedAll
[responseExpected] → Null¶Parameters: |
|
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Changes the response expected flag for all setter and callback configuration functions of this device at once.
Internal functions are used for maintenance tasks such as flashing a new firmware of changing the UID of a Bricklet. These task should be performed using Brick Viewer instead of using the internal functions directly.
BrickletIndustrialQuadRelayV2
@
SetBootloaderMode
[mode] → status¶Parameters: |
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Returns: |
|
Sets the bootloader mode and returns the status after the requested mode change was instigated.
You can change from bootloader mode to firmware mode and vice versa. A change from bootloader mode to firmware mode will only take place if the entry function, device identifier and CRC are present and correct.
This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.
The following constants are available for this function:
For mode:
For status:
BrickletIndustrialQuadRelayV2
@
GetBootloaderMode
[] → mode¶Returns: |
|
---|
Returns the current bootloader mode, see SetBootloaderMode[]
.
The following constants are available for this function:
For mode:
BrickletIndustrialQuadRelayV2
@
SetWriteFirmwarePointer
[pointer] → Null¶Parameters: |
|
---|
Sets the firmware pointer for WriteFirmware[]
. The pointer has
to be increased by chunks of size 64. The data is written to flash
every 4 chunks (which equals to one page of size 256).
This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.
BrickletIndustrialQuadRelayV2
@
WriteFirmware
[{data1, data2, ..., data64}] → status¶Parameters: |
|
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Returns: |
|
Writes 64 Bytes of firmware at the position as written by
SetWriteFirmwarePointer[]
before. The firmware is written
to flash every 4 chunks.
You can only write firmware in bootloader mode.
This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.
BrickletIndustrialQuadRelayV2
@
WriteUID
[uid] → Null¶Parameters: |
|
---|
Writes a new UID into flash. If you want to set a new UID you have to decode the Base58 encoded UID string into an integer first.
We recommend that you use Brick Viewer to change the UID.
BrickletIndustrialQuadRelayV2
@
ReadUID
[] → uid¶Returns: |
|
---|
Returns the current UID as an integer. Encode as Base58 to get the usual string version.
BrickletIndustrialQuadRelayV2
`
DEVICEUIDENTIFIER
¶This constant is used to identify a Industrial Quad Relay Bricklet 2.0.
The GetIdentity[]
function and the
IPConnection@EnumerateCallback
callback of the IP Connection have a deviceIdentifier
parameter to specify
the Brick's or Bricklet's type.
BrickletIndustrialQuadRelayV2
`
DEVICEDISPLAYNAME
¶This constant represents the human readable name of a Industrial Quad Relay Bricklet 2.0.