Product Description
General Information
• Manufacturer: Foxboro
• Model/Part Number: FBM214 P0916BX
Description
The FBM214b HART Communication Input Module contains eight 4 to 20 mA individually isolated analog input channels. It supports a mix of standard 4-20 mA devices and HART devices, providing point-to-point communication with error checking and optimized response rates.
Functional Specifications
|
Parameter |
Value |
|---|---|
|
Supported HART Instrument Types |
HART Version 5, 6, or 7 compliant devices |
|
Interface |
8 individually isolated channels |
|
Communication to Device |
Point-to-point, master/slave, asynchronous, half-duplex, 1200 baud |
|
Error Checking |
Parity on each byte, CRC check byte |
|
Speed |
2 messages per second |
|
Fastest Allowed ECB Block Period |
100 ms (refer to sizing guidelines for optimal loading) |
|
Maximum Distance (FBM214b to Field Device) |
Up to 3030 m (10,000 ft), per HART FSK physical layer specification HCF_SPEC-54, Rev 8.1 |
|
Internal Loop Supply Compliance Voltage at Termination Assembly |
18.5 V DC minimum at 20.5 mA |
|
Current Inputs |
- Sense Resistor: 61.5 Ω nominal - Total Input Resistance: 280 Ω nominal |
|
Accuracy (Includes Nonlinearity) |
±0.03% of full scale |
|
Temperature Coefficient |
50 ppm/°C |
|
Resolution |
15 bits |
|
Update Rate |
100 ms |
|
Integration Time |
500 ms |
|
Common Mode Rejection |
>100 dB at 50 or 60 Hz |
|
Normal Mode Rejection |
>35 dB at 50 or 60 Hz |
|
Input Resistance Including Termination Assembly |
- Externally Powered: 282 Ω - Internally Powered: 302 Ω |
Power Requirements
|
Parameter |
Value |
|---|---|
|
Input Voltage Range (Redundant) |
24 V DC +5% / -10% |
|
Power Consumption |
7 W (maximum) |
|
Heat Dissipation |
4 W (maximum) |
Environmental Specifications
|
Condition |
Operating |
Storage |
|---|---|---|
|
Temperature (Module) |
-20 to +70°C (-4 to +158°F) |
-40 to +70°C (-40 to +158°F) |
|
Temperature (Termination Assembly) |
-20 to +70°C (-4 to +158°F) |
-40 to +70°C (-40 to +158°F) |
|
Relative Humidity |
5 to 95% (non-condensing) |
5 to 95% (non-condensing) |
|
Altitude |
-300 to +3,000 m (-1,000 to +10,000 ft) |
-300 to +12,000 m (-1,000 to +40,000 ft) |
|
Contamination |
Suitable for Class G3 (Harsh) environments, per ISA S71.04, tested per EIA 364-65, Class III |
|
|
Vibration |
7.5 m/s² (0.75 g) from 5 to 500 Hz |
- |
Physical Specifications
|
Parameter |
Value |
|---|---|
|
Module Weight |
284 g (10 oz) |
|
Termination Assembly Weight |
Compression: 181 g (0.40 lb) |
|
Dimensions (Module) |
- Height: 102 mm (4 in), 114 mm (4.5 in) including mounting lugs - Width: 45 mm (1.75 in) - Depth: 104 mm (4.11 in) |