Rockwell Automation AADvance Controller Safety Manual - Manual (Page 78)

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4-22 Document: 553630
ICSTT-RM446K-EN-P Issue: 10 _C
Safety Manual (AADvance Controller)
AADvance also supports the ability to pass HART data between an external
Asset Management System (AMS) and Field Devices. This is strictly a passthru
mechanism using a dedicated AADvance HART DTM. This passthru capability
can however be enabled or disabled under application control.
HART data shall not be used as the primary process value for Safety
Functions as the HART protocol does not meet the required integrity levels
for Safety Instrumented Functions.
HART Passthru should be disabled if the field devices do not have
locked configuration, or if the device status is not monitored and alarmed to
prevent accidental or unauthorized changes to field device configuration.
HART devices have custom data which is provided in response to
HART command #03, the specific data for each device type must be used in
accordance with the device manufacturers published recommendations.