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Configuration
September 2018
2.3.6
Capabilities
Virtual Communication Relationship (VCR)
There are a total of 12 VCR's. One is permanent and 11 are fully configurable by the host system. 16 link
objects are available.
Network parameter
Slot Time
Maximum Response Delay
Maximum Inactivity to Claim LAS Delay
Minimum Inter DLPDU Delay
Time Sync class
Maximum Scheduling Overhead
Per CLPDU PhL Overhead
Maximum Inter-channel Signal Skew
Required Number of Post-transmission-gab-ext Units
Required Number of Preamble-extension Units
Block execution times
Analog input = 45 ms
PID = 60 ms
2.3.7
Surges/transients
The transmitter will withstand electrical transients of the energy level encountered in static discharges or
induced switching transients. However, high-energy transients, such as those induced in wiring from
nearby lightning strikes, welding, heavy electrical equipment, or switching gears, can damage both the
transmitter and the sensor. To protect against high-energy transients, install the transmitter into a
suitable connection head with the integral transient protector, option T1. Refer to the Rosemount 644
Product Data Sheet for more information.
2.4
F
OUNDATION
For reference information on the Resource, Sensor Transducer, AI, LCD Transducer blocks refer to
F
OUNDATION
in the Function Block
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.
Sensor transducer block (index number 1100)
The Sensor Transducer Function Block (STB) temperature measurement data includes sensor and
terminal temperature. The STB also includes information about sensor type, engineering units,
linearization, reranging, damping, temperature compensation, and diagnostics.
8
Fieldbus function blocks
Fieldbus Block Information on
Reference
Manual.
page
41. Reference information on the PID block can be found
Reference Manual
00809-0400-4728, Rev CA
Value
8
2
32
8
4 (1ms)
21
4
0
0
1
Configuration
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