Emerson Rosemount OCX 8800 - OCX function blocks; Resource block

7.3 OCX function blocks
7.3.1 Implemented function blocks
Table 7-1 shows the OCX implemented function blocks.
OCX implemented function blocksTable 7-1:
Function block Description
Resource block
Transducer block
Analog input block 1 (AI1) See TB Channel Assignment, Table 7-19
Analog input block 2 (AI2) See TB Channel Assignment, Table 7-19
Analog input block 3 (AI3) See TB Channel Assignment, Table 7-19
Analog input block 4 (AI4) See TB Channel Assignment, Table 7-19
PID block (PID) Proportional/integral/derivative of any AI block
Arithmetic block (ARTHM) Arithmetic function block
Input selector block (ISEL) Input selector function block
7.4 Resource block
7.4.1 PlantWeb Alerts
The PlantWeb Alerts (PWA) software supports three groups of alarms for three severity
levels: 1. Failed, 2. Maintenance, and 3. Advisory.
Each PWA can be configured for one or more of the three alarm groups. The PWA alarms
and their severity level default settings are listed in Table 7-2.
Hazardous Area OCX 8800 PWATable 7-2:
PlantWeb Alert Severity level default
Reserved None
Sensor Malfunction Failed
Sensor Degraded Failed
Thermocouple Malfunction Failed
Sensor Heater Malfunction Failed
Sensor Heater Over Temperature Failed
Sensor Heater Temperature Variance Maintenance
Calibration Error Maintenance
Foundation Fieldbus
100 OCX 8800