Product Introduction
The FBM214 P0922VT HART Communication Input Interface Module provides eight input channels, each accepting a 4 to 20mA analog signal or a digital HART signal superimposed on a 4 to 20 mA analog input signal.
Technical Specifications
|
Brand |
FOXBORO |
|
Model |
FBM214 |
|
Part Number |
P0922VT |
|
Description |
Communication Input Interface Module |
|
Origin |
USA |
|
Dimension |
15*15*6cm |
|
Weight |
0.34kg |
Product Details
The FBM214 HART Communication Input Interface Module contains eight 4 to 20 mA group isolated analog input channels. The FBM214 supports any mix of standard 4 to 20 mA devices and HART devices. The FBM214 serves as a HART communications field device host, enabling the I/A Series system to request and receive two digital messages per second from the field device. The message pass-through capability can be used to support HART universal, common practice, and device-specific commands, but not the burst communication mode. These commands are implemented using the Intelligent Field Device Configurator (IFDC - refer to PSS 21S-8A3 B3 for details). The FBM214 provides a common isolated power supply to power all eight channels. Optionally, the channels can be powered by an external power supply. However, when a common external power supply is used with two or more channels, a Cable Balun module is required to prevent channel cross talk.
COMPACT DESIGN
The FBM214 has a compact design, with a rugged extruded aluminum exterior for physical protection of the circuits. Enclosures specially designed for mounting the FBMs provide various levels of environmental protection, up to harsh environments per ISA Standard S71.04.
HIGH ACCURACY
For high accuracy, the module incorporates a SigmaDelta converter which can provide new analog input values for each channel every 100 milliseconds.
VISUAL INDICATORS
Light-emitting diodes (LEDs) incorporated into the front of the module provide visual indication of the module's operational status, and communication activity on the channels.
CABLE BALUN MODULE
The Cable Balun module is used to maintain digital communication line balance for HART Transmitter to FBM loops that are powered from a common external power supply. This powering effectively connects one line of each loop together. Without the Baluns, in each loop so powered, the common connection at the external power supply, would cause near end crosstalk at the system end of the loop wiring cable. Loops using FBM internal power source do not require Baluns.
The Cable Balun module contains multiple Baluns. One Balun segment is interconnected in each loop powered from an external power supply per the diagram above. There is one Cable Balun module.
| Module Model | Module Part No. | No. of Baluns in the Module |
| CBM-4 | P0903SV | 4 |
TERMINATION ASSEMBLIES
| FBM Type | Input Signal | TA Part Number | Termination | TA Cable | TA Certification | |
| PVC(a) | PA(a) | Type(b) | Type(c) | Type(d) | ||
| FBM214 | 8 input channels, 4 to 20 mA analog signal, alone or with HART signal superimposed | P0916BX P0926EA | P0926TD |
C RL |
1 | 1, 2 |
(a) PVC is polyvinyl chloride rated from -20 to +50°C (-4 to +122°F).PA is Polyamide rated from -20 to +70°C (-4 to +158°F). PA(a) Type(b)
(b) C = TA with compression terminals; RL = TA with ring lug terminals. Type(c)
(c) See Table 2 for cable part numbers and specifications. Type(d)
(d) See Table 1 for Termination Assembly certification definitions.
Table 1. Cables Types and Part Numbers
|
Cable Length m (ft) |
Type 1 P/PVC(a) |
Type 1 H/XLPE(b) |
Cable Length m (ft) |
Type 1 P/PVC(a) |
Type 1 H/XLPE(b) |
| 0.5 (1.6) | P0916DA | P0916VA | 10.0 (32.8) | P0916DE | P0916VE |
| 1.0 (3.2) | P0916DB | P0916VB | 15.0 (49.2) | P0916DF | P0916VF |
| 2.0 (6.6) | P0931RM | P0931RR | 20.0 (65.6) | P0916DG | P0916VG |
| 3.0 (9.8) | P0916DC | P0916VC | 25.0 (82.0) | P0916DH | P0916VH |
| 5.0 (16.4) | P0916DD | P0916VD | 30.0 (98.4) | P0916DJ | P0916VJ |