ChX view parameters
The
ChX
view includes these parameters:
TIP:
Some parameters might not be available while the device is operating in the floating point or integer mode.
Parameter | Description |
|---|---|
Output Type | Specifies if the output is Current or Voltage. |
Output Range | Specifies the output range of the device:
|
Channel Offset | Shows the offset value that is added to the output during the calibration calculation to compensate for inaccuracies of the sensor. The devices are isolated to avoid interactions between channels. |
Hold for Initialization | Select to cause the device to hold the output signal unchanged until the output value received from the controller is within 0.1% of full scale of the value being held. The output holds when:
Holding the output channel via HoldForInit allows the controller to synchronize with the output, which enables smooth output transitions and avoids rapid transients when control resumes from an interruption. The PID instruction has a bumpless restart feature built in which enables the use of Hold for Initialization .The output can be ramping to the configured hold value when the transition occurs. In this case, it continues the ramp until it completes or until the output value from the controller is within the 0.1% of the output signal. When Hold for Initialization is not selected, the output switches as quickly as possible to the first value commanded by the controller. |
Engineering Units | Displays the name of the engineering unit. |
High Signal | Displays the high scaling value in device signal units. This value is scaled to the High Engineering value. |
High Engineering | Displays the value in user engineering units to which the High Signal is scaled. All values sent to or from the device are in engineering units. |
Low Signal | Displays the low scaling value in device signal units. This value is scaled to the Low Engineering value. |
Low Engineering | Displays the value in user engineering units to which the Low Signal should be scaled. All values sent to or from the device are in engineering units. |
Output State in Program Mode Hold Last State | Holds the current output at its last value when the controller transitions to Program mode or when a connection is inhibited and the connection is closed. |
Output State in Program Mode User Defined Value | Transitions to the user-specified value when the owner controller is switched into Program mode or when a connection is inhibited. IMPORTANT : If you select User Defined Value , you must enter a value and select Ramp to User Defined Value . |
Output State in Program Mode Ramp to User Defined Value | Select to ramp the output to the user-defined value at the Ramp Rate specified in the Limits view when the output transitions to Program mode or is inhibited. |
Output State in Fault Mode Hold Last State | Holds the current output at its last value when the Communications is lost and the Output transitions to its Fault State. |
Output State in Fault Mode User Defined Value | Transitions to the user-specified value if a fault occurs. Enter the value in the box. IMPORTANT : If you select User Defined Value , you must enter a value and select Ramp to User Defined Value . |
Output State in Fault Mode Ramp to User Defined Value | Select to ramp the output to the user-defined value at the Ramp Rate specified in the Limits view. |
Ramp Rate | Displays the ramping rate. The output ramping limits the speed at which an analog output signal can change. Ramping prevents fast transitions in output from damaging external devices that the output controls. Set Ramp Rate in the Limits view. |
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