Emerson Rosemount 3144P, Справочное руководство

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Reference Manual
00809-0100-4021, Rev JA
Configuration
April 2017
Configuration
Table 4-1. Network Parameters
Block execution times
4.4 F
OUNDATION
Fieldbus function blocks
For reference information on the resource, sensor transducer, AI, LCD display transducer blocks refer to
“Function blocks” on page 188 . Reference information on the PID block can be found in the Function
Block Reference Manual .
4.4.1 Resource block (index number 1000)
The resource function block (RB) contains diagnostic, hardware, and electronics information. There are
no linkable inputs or outputs to the resource block.
Network parameter Value
Slot Time 8
Maximum Response Delay 2
Maximum Inactivity to Claim LAS Delay 32
Minimum Inter DLPDU Delay 8
Time Sync class 4 (1 ms)
Maximum Scheduling Overhead 10
Per CLPDU PhL Overhead 4
Maximum Inter-channel Signal Skew 0
Required Number of Post-transmission-gab-ext Units 0
Required Number of Preamble-extension Units 1
Block Execution time
Resource N/A
Transducer N/A
LCD display Block N/A
Advanced Diagnostics N/A
Analog Input 1, 2, 3 60 ms
PID 1 and 2 with Autotune 90 ms
Input Selector 65 ms
Signal Characterizer 60 ms
Arithmetic 60 ms
Output Splitter 60 ms