The FBM218 is a robust and reliable redundant output interface module designed to support a mix of standard 4 to 20 mA and HART digital communication signals. It offers eight channel-isolated output channels that enable highly flexible integration into industrial systems, supporting a variety of HART field devices with redundancy at the Fieldbus Module (FBM) level.
Key Features
- Output Channels:
- 8 isolated output channels supporting:
- Standard 4 to 20 mA analog output signals.
- Digital HART Frequency Shift Keying (FSK) signals superimposed on the 4 to 20 mA output.
- Redundancy:
- Module pair provides redundancy at the FBM level for continuous operation. One module acts as the Master, and the other as the Tracker.
- HART Communication:
- Dedicated FSK modem per output channel for bi-directional communication with HART field devices.
- Supports HART universal, common practice, and device-specific commands (without burst communication mode).
- Galvanic Isolation:
- Channel-to-channel isolation and isolation from ground and module logic to ensure safe and noise-immune operation.
- High Accuracy:
- Analog accuracy of ±0.05% of span between 4 mA and 20 mA.
- 13-bit resolution for fine output control.
- Maximum Rate of Change: 20 mA in 60 milliseconds.
- Compact and Rugged Design:
- Enclosure suitable for Class G3 (harsh) environments, adhering to ISA Standard S71.04.
- Termination Assemblies (TAs):
- Local or remote field wiring connections supported through flexible TAs.
Functional Specifications
| Specification |
Details |
| Field Device Channels |
8 isolated output channels, configurable for analog or HART signal outputs |
| Supported HART Versions |
Compliant with HART v5, v6, or v7 protocols |
| Communication Mode |
Point-to-point, master/slave, asynchronous, half-duplex, 1200 baud |
| Error Checking |
Parity on each byte and 32-bit CRC error checking on messages |
| Output Accuracy |
±0.05% of span (between 4 mA and 20 mA) |
| Output Load |
750 Ω maximum |
| Maximum Rate of Change |
20 mA in 60 milliseconds |
| Output Resolution |
13 bits |
| Maximum Distance (FBM218 to Device) |
Up to 3030 meters (10,000 ft), compliant with HART FSK physical layer specification |
| Loop Power Supply Protection |
Galvanically isolated, current-limited, and voltage-regulated |
| Fieldbus Communication |
Redundant 2 Mbps HDLC communication to associated FCM or FCP |
| Power Supply |
24 V DC ±5% (redundant), 7 W maximum power consumption |
| Heat Dissipation |
5 W maximum |
Environmental Specifications
| Operating Conditions |
Module |
Termination Assembly |
| Temperature |
-20 to +70°C (-4 to +158°F) |
PVC: -20 to +50°C (-4 to +122°F) |
| Humidity |
5% to 95% (non-condensing) |
5% to 95% (non-condensing) |
| Altitude |
-300 to +3000 m (-1,000 to +10,000 ft) |
-300 to +3000 m (-1,000 to +10,000 ft) |
| Storage Conditions |
Module |
Termination Assembly |
| Temperature |
-40 to +70°C (-40 to +158°F) |
-40 to +70°C (-40 to +158°F) |
| Humidity |
5% to 95% (non-condensing) |
5% to 95% (non-condensing) |
| Altitude |
-300 to +12,000 m (-1,000 to +40,000 ft) |
-300 to +12,000 m (-1,000 to +40,000 ft) |
Mounting and Physical Specifications
| Mounting |
Details |
| Module Mounting |
Mounts on a baseplate; can be mounted on a DIN rail (horizontally or vertically) or a 19-inch rack. |
| Termination Assembly Mounting |
Mounts on DIN rail (32 mm or 35 mm). |
| Dimensions |
Module |
Termination Assembly |
| Height |
102 mm (4 in) |
– |
| Width |
45 mm (1.75 in) |
– |
| Depth |
104 mm (4.11 in) |
– |
| Weight |
284 g (10 oz) |
Compression: 181 g (0.40 lb)
Ring Lug: 249 g (0.55 lb) |
Part Numbers and Accessories
| Part Number |
Description |
| P0922VW |
FBM218 Module |
| P0916QD |
Redundant Adapter |
| Termination Assemblies |
See “Functional Specifications – Termination Assemblies” for details |
| Termination Cables |
Up to 30 m (98 ft), materials: Polyurethane or Low Smoke Zero Halogen (LSZH) |
Field Termination Connections
| Connection Type |
Wiring Sizes |
| Compression-type |
0.2 to 4 mm² / 24 to 12 AWG |
| Stranded with Ferrules |
0.2 to 2.5 mm² with or without collar |
| Ring Lug |
#6 size connectors (0.375 in) for 0.5 to 4 mm² / 22 AWG to 12 AWG |
About Us
Meloauto – Your Trusted Supplier for Original, Brand-New PLC and DCS Parts
Meloauto offer a vast selection of products from globally recognized brands, including Allen Bradley, Bently Nevada, Honeywell, ABB, GE Fanuc, Siemens, Invensys Triconex, ICS Triplex, Foxboro, Yokogawa, Schneider, and Hima, among others. With tens of thousands of new parts ready to ship, Meloauto has successfully served customers across over 50 countries worldwide.
We focus on supplying discontinued and hard-to-find items, ensuring each product is in brand-new, original condition.
Contact Us
Let us help you find the automation parts you need with reliable quality and dedicated support!
MeloAuto-Trusted PLC & DCS Parts Supplier
WeChat
Scan the QR Code with wechat