DCP200 Profile Controller & Recorder - Product Manual

Alarm Configuration Sub-Menu

Table 12. Alarm Configuration Sub-Menu Screens

 

 

 

Alarm Configuration:

 

 

Alarm n Type

w

Sets the type for each of the 5 alarms From: Unused; Process High;

 

 

Process Low; PV-SP Deviation; Band; Control Loop; Rate Of Signal

 

 

Change; PV Signal Break; Aux. Input A or B Break.

Alarm n Value

w

Alarm activation point. – applicable if type is High; Low; Deviation

 

 

(+ve above, -ve below SP), Band (above or below SP) or Rate of

 

 

Signal Change (a rate of more that x units per hour).

Process Alarm n

 

Deadband on “safe” side of alarm, through which signal must pass

Hysteresis

 

before alarm deactivates.

Signal Change Alarm n

 

The minimum time that the rate of input change must be above the

Minimum Duration

 

alarm threshold for a Rate Of Change Alarm to change state (from on

 

 

to off, or off to on). Adjustable from 1 to 9999 secs. Caution: If the

 

 

duration is less than this time, the alarm will not activate no matter

 

 

how fast the rate of rise.

Alarm n Inhibit

 

Enables or disables the prevention of initial alarm activation, if the

 

 

alarm condition is true at power up. Activation only occurs once the

 

 

alarm condition has passed and then reoccurred.

Loop Alarm Type

 

Sets the source of the Loop Alarm Time. From: Automatic (2x the

 

 

Integral Time Constant) or Manual (the Manual Loop Alarm Time

 

 

value). If configured, a Loop Alarm activates if no response is seen

 

 

after this time.

Manual Loop Alarm

 

The time allowed after PID power output reaches minimum or

Time

 

maximum), for process to begin responding.

Communications Configuration Sub-Menu

Table 13. Communications Configuration Sub-Menu Screens

Communications Configuration:

 

No Communications

 

If Communications Configuration menu is entered without a

 

Warning

 

communications module fitted.

 

Modbus RTU Parity

w

From: Odd; Even or None.

 

Modbus RTU Data Rate

w

From: 9600; 19200; 57600 or 115200 bps.

 

Master Mode, or Slave

w

Slave address (1 to 255), or multi-zone Setpoint Master Mode.

 

Address

 

 

 

Target Register In Slave

 

Target register for Setpoint value in attached slave controllers.

 

Master Mode Format

 

The data format required by the attached setpoint slaves. From:

 

 

 

Integer; integer with 1 decimal place or float.

 

Serial Communications

 

Enables/disables writing via RS485 or Ethernet (if fitted). When

 

Write Enable

 

disabled, all parameters are read only.

51-52-25-150, Issue 1 – April 2009

Configuration & Use

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Honeywell DCP200 manual Alarm Configuration Sub-Menu, Communications Configuration Sub-Menu

DCP200 specifications

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