Documentation

The Module ID has two functions:

Analog voltage range used for the analog input and output channels. The range is the same for both inputs and outputs.

Analog current range used for the analog input and output channels. The range is the same for both inputs and outputs.

Check this box if the module should calibrate itself the next time this model (target application) is downloaded and initialized. The autocalibration function compensates for component aging, and minimizes the effects of temperature on accuracy. We recommend keeping this enabled. The calibration normally takes approximately 2 seconds, so we recommend increasing the host-target communication time-out in the model configuration parameters to allow for this. The status of the calibration is displayed on the target screen. The calibration is not re-executed during normal start/stop operation once the target application has been downloaded. All input channels are calibrated to a single internal voltage reference. Offset and gain error corrections for each channel are determined during the autocalibration process, and are applied to each channel in real-time during data acquisition.

	Warning
	During the calibration process various signals may be present at the output pins. These will nonetheless remain within the configured voltage range.

There are two approaches for mapping this block to a specific I/O module installed in your target machine. All modules of the same type must be configured using the same method.

This parameter specifies if the input channels are to be used as current or voltage inputs. If "off" is selected, then the channels will be configured as voltage inputs. If "on" is selected, then the channels will be configured as current inputs. In this case the voltage range of both inputs and outputs is forced to 0 to +5 V and Input Coupling is set to differential mode regardless of the values selected.

The name of this parameter changes depending on the value of Current Transceiver. It specifies the number of voltage/current channels that will be used.

Either differential or single-ended for 8 differential or 16 single-ended channels. Note that single-ended channels can only be used if Current Transceiver is set to "off".

Analog current outputs ("Analog Current OUT01" to "Analog Current OUT04") are enabled when this parameter is checked. In this case the voltage outputs are not disabled: they are set to a range of 0-5 V. The output voltage is scaled according to the current outputs; for example, if the range is set to 4-20 mA, then a value of 0.004 will cause the I/O module to output 4 mA and 0 V, a value of 0.012 will output 12 mA and 2.5 V, and a value of 0.020 will output 20 mA and 5 V.

This parameter is only available if the Enable Current Output parameter is active. When checked, the Analog output block displays "Alarm" ports. The output of these ports will be "1" if an open/floating line is detected (for example, if the connection to the device is interrupted/broken).

Values between 1 and 4 in a vector. This driver allows individual D/A channels to be selected in any order. The number of elements defines the number of D/A channels used. For example, to use two of the analog output channels, enter "[1,2]". Number the channels beginning with 1, even if the board manufacturer starts with 0.

This field specifies the behavior of the channel at model termination. Enter a scalar or a vector of the same length as the total number of channels (e.g. "[1 1 1 1]"), even if not all the channels are used. If a scalar value is specified, its value will be used for all channels. A value of 1 causes the corresponding channel to be reset to the value specified in the Initial Value Vector field. A value of 0 causes the channel to remain at the last value used while the model was running.

This field specifies the initial voltage values for the output channels. Enter a scalar or a vector of the same length as the total number of channels (e.g. "[1 1 1 1]"), even if not all the channels are used. If a scalar value is specified, its value will be used for all channels. The channels are set to the initial values between the time the model is downloaded and the time it is started.

Values between 1 and 8 in a vector. This driver allows individual digital channels to be selected in any order. The number of elements defines the number of digital channels used. For example, to use two of the digital input channels, enter "[1,2]". Number the channels beginning with 1, even if the board manufacturer starts with 0.

Values between 1 and 8 in a vector. This driver allows individual digital channels to be selected in any order. The number of elements defines the number of digital channels used. For example, to use two of the digital input channels, enter "[1,2]". Number the channels beginning with 1, even if the board manufacturer starts with 0.

This field specifies the behavior of the channel at model termination. Enter a scalar or a vector of the same length as the total number of channels (e.g. "[1 1 1 1]"), even if not all the channels are used. If a scalar value is specified, its value will be used for all channels. A value of 1 causes the corresponding channel to be reset to the value specified in the Initial Value Vector field. A value of 0 causes the channel to remain at the last value used while the model was running.

This field specifies the initial voltage values for the output channels. Enter a scalar or a vector of the same length as the total number of channels (e.g. "[1 1 1 1]"), even if not all the channels are used. If a scalar value is specified, its value will be used for all channels. The channels are set to the initial values between the time the model is downloaded and the time it is started.