AB 1756-IF16H/A ControlLogix 16 Pt A/I HART Module

The 1756-IF16H module sends status/fault data to the controller with its channel data. The fault data is arranged to let you choose the level of granularity you desire for examining fault conditions. Three levels of tags work together to provide an increasing degree of detail as to the specific cause of faults on the module. 

During normal module operation, bits in the Channel Fault word are set if any of the respective channels has an Under or Overrange condition. Checking this word for a nonzero value is a quick way to check for Under or Overrange conditions on the module. Channel Fault bits for all channels are also set (16#FFFF) if calibration is being performed or a communication fault has occurred between the module and its owner controller.

ControlLogix® HART analog I/O modules connect a Logix controller to your process. HART input modules (1756-IF8H, 1756-IF8IH, 1756-IF16H, and 1756-IF16IH) receive signals from process value transmitters and convert them to corresponding measurement values for use in the Logix controller (for example, temperature, flow, pressure, or pH). HART output modules (1756-OF8H, 1756-OF8IH) provide current or voltage output signals that adjust the settings of valves and other devices in accord with desired process behavior. Instruments that support the HART protocol allow several process parameters to be measured with one field device, provide status and diagnostics information, and allow remote configuration and troubleshooting.