DCP200 Profile Controller & Recorder - Product Manual

Auxiliary Input

Up to two secondary linear input modules can be installed in Option Slot A and B. These can be used as Remote Setpoint inputs. Signals can be mA, mV, VDC or Potentiometer. Auxiliary Input B also has a Digital Input onboard.

Also refer to: Alternative Setpoint, Digital Input, Linear Input, mADC, mVDC, Remote Setpoint and VDC

Auxiliary Input Lower Limit

When the auxiliary input is used to provide a Remote Setpoint (RSP), this setting defines the value of the RSP when the auxiliary input signal is at its minimum value (e.g. for 4 to 20mA, the value when 4mA is applied). It may be adjusted within the range -1999 to 9999. However, the RSP value is always constrained by the setpoint upper limit and Lower Limits.

Settings = -1999 to 9999

Default Value = Scale Range Lower Limit.

Also refer to: Auxiliary Input, Auxiliary Input Upper Limit, Auxiliary Input Offset, Remote Setpoint, Setpoint and Setpoint Upper Limit and Setpoint Lower Limit.

Auxiliary Input Offset

Used to adjust the value of the Auxiliary Input. Positive values are added to the auxiliary input reading, negative values are subtracted. It is adjustable in the range –1999 to 9999. When the auxiliary input is used to provide a Remote Setpoint, this setting is added to (or subtracted from) the remote setpoint value, but the setpoint is still constrained by the etpoint

upper and lower limits.

 

Settings = ±input span

Default Value = Off.

Also refer to: Auxiliary Input, Remote Setpoint, Scale Range Upper Limit, Scale Range Lower Limit Setpoint Lower Limit and Setpoint Upper Limit.

Auxiliary Input Type

Defines the type and range of the linear input signal for the Auxiliary Input. It can be mADC, mVDC, VDC or potentiometer (mVDC and potentiometer are only available with the Full Auxiliary input in option slot B). This can be used as a Remote Setpoint input.

Also refer to: Remote Setpoint and Setpoint.

Auxiliary Input Upper Limit

When the auxiliary input is used to provide a Remote Setpoint (RSP), this setting defines the value of the RSP when the auxiliary input signal is at its maximum value (e.g. for 4 to 20mA, the value when 20mA is applied). It may be adjusted within the range -1999 to 9999.

However, the RSP value is always constrained by the setpoint upper limit and Lower Limits.

Settings = -1999 to 9999

Default Value = Scale Range Lower Limit.

Also refer to: Auxiliary Input, Auxiliary Input Lower Limit, Auxiliary Input Offset, Remote Setpoint, Setpoint and Setpoint Upper Limit and Setpoint Lower Limit.

Band Alarm Value

The amount of control deviation that is acceptable before a Band Alarm is activated. If the process variable is more than the value of this band from the actual setpoint, the alarm will be active.

Settings = 1 LSD to full input span from the setpoint.

Default value = 5 LSD’s.

Also refer to: Actual Setpoint, Alarm Operation, Alarm Types, Control Deviation, Input Span, LSD and Process Variable.

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Glossary

51-52-25-150, Issue 1 – April 2009

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Honeywell DCP200 manual Auxiliary Input Lower Limit, Auxiliary Input Offset, Auxiliary Input Type, Band Alarm Value

DCP200 specifications

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