Foundation Fieldbus Specifications; Wiring Diagram - Emerson Rosemount Reference Manual

Appendix A: Reference Data
April 2014
A.3 F
OUNDATION
Power supply
Powered over F
on 9.0 to 32.0 Vdc, 11 mA maximum. Transmitter power terminals are rated to 42.4 Vdc.

Wiring diagram

See Figure A-2 on page
Alarms
The AI function block allows the user to configure the alarms to HIGH-HIGH, HIGH, LOW, or
LOW-LOW with a variety of priority levels and hysteresis settings.
Transient protection (option code T1)
The transient protector helps prevent damage to the transmitter from transients induced on the
loop wiring by lightning, welding, heavy electrical equipment, or switch gears. The transient
protection electronics are contained in an add-on assembly that attaches to the standard
transmitter terminal block. The transient terminal block is not polarity insensitive. The transient
protector has been tested to the following standard:






Local display
Displays all DS_65 measurements in the transducer and function blocks including Sensor 1,
Sensor 2, differential and terminal (body) temperatures. The display alternates up to four
selected items and can display up to five digits in engineering units (°F, °C, °R, K, , and
millivolts). Display settings are configured at the factory according to the transmitter
configuration (standard or custom), and these settings can be reconfigured in the field using a
Field Communicator or DeltaV. In addition, the LCD display can display DS_65 parameters from
other devices. Besides the configuration of the meter, sensor diagnostic data is displayed. If the
measurement status is good, the measured value is shown. If the measurement status is
uncertain, "uncertain" is shown in addition to the measured value. If the measurement status is
Bad, the reason for the bad measurement is shown.
Note
When ordering a spare electronics module assembly, the LCD display transducer block will
display the default parameter.
Turn-on time
Specification performance is achieved less than 20 seconds after power is applied to the
transmitter when the damping value is set to 0 seconds.
200
fieldbus specifications
fieldbus with standard fieldbus power supplies. Transmitters operate
OUNDATION
205.
IEEE C62.41-1991 (IEEE 587), Location Categories B3.
Combinational Wave, 6kV/3kA peak, 1.2*50uS/8*20uS.
Ring Wave, 100kHz, 6kV/0.5kA peak
EFT, 4kV, 2.5kHz, 5*50nS
Loop resistance added by protector: 22 ohms max.
Nominal clamping voltages: 90 V (common mode),
77 V (normal mode)
Reference Manual
00809-0100-4021, Rev GC
Reference data