xjxmn
Junior Member level 3
Can anyone help me in HART designing.
When a HART device begins or ends transmission, a transient spike should not be introduced into the network. Large transients could interfere with the reception of HART signals by other devices or, more importantly, affect analog signaling. In physic layer SPEC, carrier start/stop transients should decay quickly enough that filter output does not exceed 10mV above or below the DC average of the filter output.
The question is how can I design the HART modem and DAC to meet the requirements of physic layer Spec. Anyone can help me?
When a HART device begins or ends transmission, a transient spike should not be introduced into the network. Large transients could interfere with the reception of HART signals by other devices or, more importantly, affect analog signaling. In physic layer SPEC, carrier start/stop transients should decay quickly enough that filter output does not exceed 10mV above or below the DC average of the filter output.
The question is how can I design the HART modem and DAC to meet the requirements of physic layer Spec. Anyone can help me?
