ABB 2600T Series Instruction Manual page 74

74 2 6 0 0 T S E R I E S | P R E S S U R E T R A N S M I T T E R S | O I/ 2 6 6/ F F - E N R E V. E
. . .Device Diagnostic
The device diagnostic info are split into four different alert type parameters relating the four NAMUR NE107 classifications.
• RB_FAIL_ACTIVE
• RB_OFFSPEC_ACTIVE
• RB_MAINTENANCE_ACTIVE
• RB_CHECK_ACTIVE
Each error is represented by a bit and all the above parameters have the same error bit mapping.
When the device firmware detects an error condition, its corresponding bit is set into one of the above 4 parameters depending by
into which of the RB_x_MAP parameter below the error bit has been mapped:
• RB_FAIL_MAP
• RB_OFFSPEC_MAP
• RB_MAINTENANCE_MAP
• RB_CHECK_MAP
When an error condition mapped into RB_FAIL_MAP became true, its corresponding bit is set into RB_FAIL_ACTIVE and. if enabled,
the FAIL_ALARM telegram transmitted.
If the same error is then mapped into RB_MAINTENANCE_MAP, when it is detected again, its corresponding bit is set into RB_
MAINTENANCE_ACTIVE and the MAINTENANCE_ALARM telegram transmitted.
All the error conditions mapped in the above parameters can be simulated or masked from RB_SIMULATE or RB_x_MASK
Before to simulate an error condition, the device must be configured to operate in Simulation Mode by moving the switch 4 of the
electronics in ON position and writing "Active" into the RB_SIMULATE_EN/DIS. parameter.
Then, once an error bit is simulated active by writing into RB_SIMULATE, its feed-back is readable from RB_DIAGNOSTIC_VALUE
parameter.
IMPORTANT
Only one condition/bit per time can be simulated.
For some error conditions, the bit mapped in the above parameters is not exhaustive to identify the real root cause of the problem
and, for this reason, additional detailed information about the specific error condition have been mapped into RB_EXTENDED_
ACTIVE parameters.