Owner manual

Rockwell Automation Publication 1756-UM533C-EN-P - February 2011 75
1756-IF16H HART Analog Input Module Chapter 5
1756-IF16H Module Fault
and Status Reporting
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.
Table 12
shows the tags that can be examined in ladder logic to indicate when a
fault has occurred.
Table 12 - Tags That Can Be Examined in Ladder Logic
Tag Description Tag Name
Analog and HART PV
Tag Name
Analog and HART by Channel
Module Fault Word This word provides fault summary reporting. ModuleFaults ModuleFaults
Channel Fault Word This word provides clamp and communication
fault reporting.
ChannelFaults
ChxxFault
ChannelFaults
ChxxFault
Channel Status Tags These words provide individual channel limit, hold,
open wire, ramp status, and calibration faults.
ChxxStatus Chxx.Device Status
Chxx.DeviceStatus.AlarmStatus
HART Faults This provides HART communication status. HARTFaults,
ChxxHARTFault
Chxx.DeviceStatus.HARTFault
HART Device Status This provides HART field device health. HART.ChxxDevice Status Chxx.DeviceStatus.FieldDeviceStatus