Emerson Rosemount 2051 Reference Manual page 98

Reference Data
March 2024
Table A-1: Foundation fieldbus Function Block Execution Times
(continued)
Block
Transducer
LCD Block
Analog Input 1, 2
PID
Foundation fieldbus Parameters
Schedule Entries
Links
Virtual Communications
Relationships (VCR)
Standard Function Blocks
Resource Block
• Contains hardware, electronics, and diagnostic information.
Transducer Block
• Contains actual sensor measurement data including the sensor diagnostics and the
ability to trim the pressure sensor or recall factory defaults.
LCD Block
• Configures the local display.
2 Analog Input Blocks
• Processes the measurements for input into other function blocks. The output value is in
engineering units or custom and contains a status indicating measurement quality.
PID Block
• Contains all logic to perform PID control in the field including cascade and feedforward.
Backup Link Active Scheduler (LAS)
The transmitter can function as a Link Active Scheduler if the current link master device
fails or is removed from the segment.
1-5 Vdc HART Low Power (Output Code M)
Output
Three wire 1–5 Vdc output, user-selectable for linear or square root output. Digital process
variable superimposed on voltage signal, available to any host conforming to the HART
protocol.
Power Supply
External power supply required. Standard transmitter operates on 9 to 28 Vdc with no load.
Power Consumption
3.0 mA, 27–84 mW
Output Load
100 kΩ or greater
Turn-On Time
98
Execution Time
-
-
30 milliseconds
45 milliseconds
7 (max.)
20 (max.)
12 (max.)
Reference Manual
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