Contents
©
National Instruments Corporation vii FieldPoint FP-3000 User Manual
Chapter 4Block Reference
Block Overview.............................................................................................................4-1
Function Blocks...............................................................................................4-1
Resource Block................................................................................................4-2
Types of Function Blocks..............................................................................................4-2
AI (Analog Input)............................................................................................4-2
AO (Analog Output)........................................................................................4-2
PID (Proportional–Integral–Derivative)..........................................................4-3
DI (Discrete Input)..........................................................................................4-3
DO (Discrete Output)......................................................................................4-3
CDO (Complex Discrete Output)....................................................................4-3
LOG (FieldPoint Log Block) (FP-3000 Specific)...........................................4-4
STAT (FieldPoint Statistics Block) (FP-3000 Specific).................................4-4
Function Blocks and FieldPoint Modules......................................................................4-4
PID Control....................................................................................................................4-5
Alarming........................................................................................................................4-6
Alarm Parameters............................................................................................4-6
UNACKNOWLEDGED...................................................................4-7
ALARM_STATE/UPDATE_STATE..............................................4-7
TIME_STAMP..................................................................................4-8
SUBCODE........................................................................................4-8
VALUE.............................................................................................4-8
Status and Mode Handling Overview............................................................................4-8
Status Handling...............................................................................................4-8
Quality...............................................................................................4-9
Substatus...........................................................................................4-9
Limit..................................................................................................4-10
MODE_BLK Parameter and Mode Handling.................................................4-10
Target Mode......................................................................................4-10
Actual Mode......................................................................................4-11
Permitted Mode.................................................................................4-12
Normal Mode....................................................................................4-12
FP-3000 Specific Parameters.........................................................................................4-13
CFG_OPTS......................................................................................................4-13
DEV_OPTS.....................................................................................................4-13
EXECUTION_STATISTICS..........................................................................4-13
FIELDPOINT_CHANNEL.............................................................................4-14
FIELDPOINT_MODULE...............................................................................4-14
FP_AI_100_RANGE.......................................................................................4-14
FP_AI_110_RANGE.......................................................................................4-14
FP_AI_111_RANGE.......................................................................................4-14
FP_AO_200_RANGE.....................................................................................4-15