communicates to my Hart field device but my handheld communicator
does not. Why? How do I communicate using the Handheld?
communications loss is likely a result of the high preambles
necessary to communicate to the slave device. To use the Handheld
Communicator, temporarily lower the Fieldbus Timeout value to the
default value of 256 while using the Handheld and then change it
back to the required setting when finished using the Handheld.
Typically, slave devices require a higher timeout to communicate.
If you neglect to change the timeout value back to the required
setting, the Handheld will continue to communicate to the Hart
field device but the HFM will not communicate. The Fieldbus
Timeout values are FB_01_Timeout through
FB_16_Timeout under HFM module scope parameters.
HFM, Hart, Handheld, Communicator