Control Mode

You can change the control mode by selecting Control Mode from the Mode menu or press

the Hot Key and select Control Mode.

Control Mode lets you define where the instrument receives its set point. Follow the prompts

on the handheld communicator display to choose one of the following control modes: Analog

or Digital.

Choose Analog if the instrument is to receive its set point over the 4 to 20 mA loop. Normally,

the instrument control mode is Analog.

Choose Digital if the instrument is to receive its set point digitally, via the HART

communications link.

A third mode, Test, is also displayed. Normally, the instrument should not be in the Test

mode. The handheld communicator automatically switches to this mode whenever it needs to

stroke the valve, for example during calibration or stroke valve. However, if you abort from a

procedure where the instrument is in the Test mode, it may remain in this mode. To take the

instrument out of the Test mode, select Control Mode then select either Analog or Digital.