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Dokumentation

ADLINK-DAQPilot I/O Interface for ADLINK digital I/O devices

Interface: ADLINK-DAQPilot
Revision: 13.0.2
Date: 2017-11-28

General

This page provides the documentation of the HALCON ADLINK-DAQPilot interface for accessing the ADLINK Digital I/O cards. Only interface specific parameters and features are described here. For general information of the operators for I/O interfaces please have a look at the HALCON Operator Reference.
Registered customers can download the latest revision of this interface from the MVTec WWW server.

System Requirements

  • Intel compatible PC with Windows 7 (32-bit) or newer that is also supported by the vendor-specific SDK, also WoW64 (using 32-bit HALCON on 64-bit Windows).
  • Installed ADLINK-DAQPilot SDK with version 3.11 (or higher).
  • Windows: HALCON I/O interface hioADLINK-DAQPilot.dll or hioADLINK-DAQPilotxl.dll, respectively. If you have properly installed the interface, all these DLLs should reside in bin\%HALCONARCH% within the HALCON base directory %HALCONROOT% you have chosen during the installation of HALCON.

Installation

Only when installing or updating the interface manually follow these steps:
  • Windows: Extract the archive containing the interface files to the HALCON base directory %HALCONROOT% (Note: Administrator privileges may be required for this step). Additionally, you have to move the interface examples to the directory %HALCONEXAMPLES% manually.
  • Linux: Extract the archive containing the interface files to the HALCON base directory $HALCONROOT.

Features

  • Opening and using of multiple ADLINK-DAQPilot I/O ports.
  • Opening and using of multiple specific channels (specific port values).

Limitations

  • No autodetection of installed devices.
  • No support of native 64-bit Windows.
  • No support of using the virtual device.
  • Pattern matching, event counters, and analog functions are not supported.
  • No support of bi-directional I/O channels.

Operator control_io_interface

Not supported by this interface.

Operator query_io_interface

query_io_interface(::IOInterfaceName, Query:Result)
Queries information about the specified I/O device interface.
Parameter Values Type Description
IOInterfaceName 'ADLINK-DAQPilot' string HALCON I/O interface name.
Query string Parameter name of the query.
     'io_device_names' '<name>' string This functionality is not supported. Please use the ADLINK Tool 'Open DAQPilot Task' to figure out the necessary device name. This name must be passed as string in open_io_device().
     'param_name' '<parameter>'[,'<parameter>'...] string Returns the possible parameter names.
     'revision' '<version>.<revision>.<build>' string Revision number of the interface.
Result integer, real, string List of result values (according to Query).

Operator open_io_device

open_io_device(::IOInterfaceName, IODeviceName, GenParamName, GenParamValue:IODeviceHandle)
Open and configure an I/O device.
Parameter Values Default Type Description
IOInterfaceName 'ADLINK-DAQPilot' [] string HALCON I/O interface name.
IODeviceName [] string I/O device name.
GenParamName [] string Dynamic parameter names.
GenParamValue [] integer, real, string Dynamic parameter values.
IODeviceHandle integer Handle of the opened I/O device.

Operator control_io_device

Not supported by this interface.

Operator set_io_device_param

Set the device parameters. Currently, no parameters are defined.

Operator get_io_device_param

get_io_device_param(::IODeviceHandle, GenParamName:GenParamValue)
Query settings of an I/O device instance.

There may exist additional parameter attributes, which can be accessed as 'ParamNames.AttributeName'. The following standard attributes may be available:
  • '.access': This attribute provides the access permissions of the corresponding parameter as a string. Possible values are 'ro' (read-only), 'wo' (write-only), 'rw' (read/write), 'na' (unavailable, perhaps due to insufficient access rights), and 'ni' (unavailable, not defined for this device or channel).
  • '.category': This attribute provides the category of the corresponding parameter as a string. 'I/O interface' for all pre-defined I/O interface parameters.
  • '.default': This attribute provides the default value of the corresponding parameter.
  • '.description': This attribute provides the description of the corresponding parameter as a string.
  • '.displayname': This attribute provides the displayname of the corresponding parameter as a string.
  • '.range': This attribute provides the minimum and maximum, (and the step width, if applicable) for the corresponding integer or float parameter as a tuple with 2 (or 3) elements.
  • '.representation': This attribute provides how the value of the parameter should be displayed in a GUI: 'ip address', 'hex', ...
  • '.tooltip': This attribute provides the tool-tip of the corresponding parameter as a string.
  • '.type': This attribute provides the HALCON value type (integer, real, or string) of the corresponding parameter as a string.
  • '.values': This attribute provides the valid value list for the corresponding parameter as a tuple.
  • '.visibility': This attribute provides the visibility of the corresponding parameter as a string. Possible values are 'common', 'extended', and 'dangerous'.
  • '.unit': This attribute provides the units of the corresponding parameter as a string. For example: 'ns', 'us' and 'ms', or 'mm', 'cm', 'dm' and 'm'.
Parameter Values Type Description
IODeviceHandle integer Handle of the opened I/O device.
GenParamName string Parameter names.
     'io_device_name' '<name>' string Returns the name of the device.
     'param_name' '<parameter>'[,'<parameter>'...] string Returns the possible parameter names.
GenParamValue integer, real, string Parameter values.

Operator query_io_device

query_io_device(::IODeviceHandle, IOChannelName, Query:Result)
Query information about channels of the specified I/O device.
Parameter Values Type Description
IODeviceHandle integer Handle of the opened I/O device.
IOChannelName string Channel names to query.
Query string Name of the query.
     'channel_type' 'digital_input', 'digital_output' string Returns the type of the passed channel.
     'io_channel_names' '<name>' string Returns a list of channels provided by the device, e.g., 'di_0.2' describes input port channel 2 on port 0. To list only the channels of a specific type, use the special form io_channel_names.<channel_type> (for a list of valid channel types, see the description of the channel_type parameter).
     'param_name' '<parameter>'[,'<parameter>'...] string Returns the possible parameter names.
     'value.range' [<min>,<max>,<step>] string Returns the possible range of the used I/O channel name parameter.
Result integer, real, string List of values (according to Query).

Operator open_io_channel

open_io_channel(::IODeviceHandle, IOChannelName, GenParamName, GenParamValue:IOChannelHandle)
Open and configure I/O channels.
Parameter Values Default Type Description
IODeviceHandle integer Handle of the opened I/O device.
IOChannelName string HALCON I/O channel names of the specified device.
GenParamName [] string Parameter names.
GenParamValue [] integer, real, string Parameter values.
IOChannelHandle integer Handles of the opened I/O channel.

Operator control_io_channel

Not supported by this interface.

Operator set_io_channel_param

Not supported by this interface.

Operator get_io_channel_param

get_io_channel_param(::IOChannelHandle, GenParamName:GenParamValue)
Query specific parameters of I/O channels.

There may exist additional parameter attributes, which can be accessed as 'ParamNames.AttributeName'. The following standard attributes may be available:
  • '.access': This attribute provides the access permissions of the corresponding parameter as a string. Possible values are 'ro' (read-only), 'wo' (write-only), 'rw' (read/write), 'na' (unavailable, perhaps due to insufficient access rights), and 'ni' (unavailable, not defined for this device or channel).
  • '.category': This attribute provides the category of the corresponding parameter as a string. 'I/O interface' for all pre-defined I/O interface parameters.
  • '.default': This attribute provides the default value of the corresponding parameter.
  • '.description': This attribute provides the description of the corresponding parameter as a string.
  • '.displayname': This attribute provides the displayname of the corresponding parameter as a string.
  • '.range': This attribute provides the minimum and maximum, (and the step width, if applicable) for the corresponding integer or float parameter as a tuple with 2 (or 3) elements.
  • '.representation': This attribute provides how the value of the parameter should be displayed in a GUI: 'ip address', 'hex', ...
  • '.tooltip': This attribute provides the tool-tip of the corresponding parameter as a string.
  • '.type': This attribute provides the HALCON value type (integer, real, or string) of the corresponding parameter as a string.
  • '.values': This attribute provides the valid value list for the corresponding parameter as a tuple.
  • '.visibility': This attribute provides the visibility of the corresponding parameter as a string. Possible values are 'common', 'extended', and 'dangerous'.
  • '.unit': This attribute provides the units of the corresponding parameter as a string. For example: 'ns', 'us' and 'ms', or 'mm', 'cm', 'dm' and 'm'.
Parameter Values Type Description
IOChannelHandle integer Handles of the opened I/O channels.
GenParamName string Parameter names.
     'channel_type' 'digital_input', 'digital_output' string Returns the type of the passed channel.
     'io_channel_name' '<name>' string Returns the name of the channel.
     'param_name' '<parameter>'[,'<parameter>'...] string Returns the possible parameter names.
GenParamValue integer, real, string Parameter values.

Operator read_io_channel

read_io_channel(::IOChannelHandle:Value, Status)
Read a value from the specific I/O channel or from a port.
Parameter Values Type Description
IOChannelHandle integer Handles of the opened I/O channels.
Value integer, real, string Read value.
Status integer Status of read value. A status of '0' indicates success, while any other value indicates an error condition.

Operator write_io_channel

write_io_channel(::IOChannelHandle, Value:Status)
Writes a value to the specific I/O channel or to a port.
Parameter Values Type Description
IOChannelHandle integer Handles of the opened I/O channels.
Value integer, real, string Write values.
Status integer Status of written values. A status of '0' indicates success, while any other value indicates an error condition.

Operator close_io_channel

close_io_channel(::IOChannelHandle:)
Close I/O channels.
Parameter Type Description
IOChannelHandle integer Handles of the opened I/O channels.

Operator close_io_device

close_io_device(::IODeviceHandle:)
Close the specified I/O device.
Parameter Type Description
IODeviceHandle integer Handle of the opened I/O device.
Queries the requested information from the specified I/O channels. The parameter 'ParameterNode' is not used by this interface.

HDevelop Examples

For this interface the following examples are available:
  • adlink-daqpilot_digital_read.hdev - Example to show how to read several parameters and values.
  • adlink-daqpilot_digital_write.hdev - Example to show how to write several parameters and values.

Release Notes

  • Revision 13.0.2 (Nov 28, 2017):
    • The technical dependency from the HALCON Library has been removed.
  • Revision 13.0.1 (Oct 28, 2016):
    • HALCON 13 version of the interface.
  • Revision 1.1 (Mar 29, 2016):
    • query_io_device returned an error when querying the channel names of unsupported channel types. This problem has been fixed and now an empty tuple is returned.
    • query_io_device returned an empty tuple when querying the channel type without specifying a channel. This problem has been fixed and now an error is returned.
  • Revision 1.0 Addendum (Sep 9, 2015):
    • Bi-directional I/O channels are not supported. A note has been added to the 'Limitations' section.
    • The HDevelop examples adlink-daqpilot_digital_read.hdev and adlink-daqpilot_digital_write.hdev have been improved.
  • Revision 1.0 (Jun 10, 2015):
    • First official release.