Foxboro Evo ™ Compact 200 Series I/O Subsystem

FBM237 8-channel 0-20mA output, redundant ready, channel isolated redundant control scenario actuator driver

Discrete Input (DI) FBM207/b/c 16 channel DC voltage monitoring/contact detection (24V/48V), redundant ready switch status, contact signal acquisition

FBM217 32 channel discrete input, group isolated high-density digital signal acquisition (such as equipment operation status)

Discrete I/O (DI/DO) FBM219 24 channel DI+8 channel DO, external power supply, group isolation mixed discrete data acquisition and control (such as valve switch+status feedback)

FBM241/c/d 8-channel voltage monitoring/contact detection+8-channel DO, channel isolation high-precision discrete mixed control scenario

Multi functional I/O FBM247/248 8-channel current/voltage/analog/digital/pulse configurable I/O, supporting HART ®， FBM248 supports redundant complex mixed signal scenarios (such as pulse counting+analog acquisition+digital output)

（3） Auxiliary function module

1. Fieldbus isolator/filter (FBI200)

Core function: Expand the fieldbus distance between FCP and FBM modules, with dual axis cable transmission up to 305 meters (1000 feet);

Adaptation features: When paired with FCP270, it can filter 2Mbps (200 Series) and 268Kbps (100 Series) signals to avoid mutual interference; When used in conjunction with FCP280, it is only used to extend communication distance and does not require filtering isolation.

2. Fieldbus Communication Module (FCM Series)

Responsible for signal conversion and long-distance communication expansion, supporting redundant configuration. The model details are as follows:

Model Core Function Communication Distance Adaptation Scenario

FCM100Et 100Mbps fiber optic signal → 2Mbps electrical signal (for 200 Series FBM) - Short distance extension of fiber optic to electrical signal, requiring paired redundant deployment

FCM100E 100Mbps fiber optic signal → 2Mbps (200 Series) or 268Kbps (100 Series) electrical signal - needs to adapt to mixed scenarios of 100/200 Series FBM simultaneously

FCM2F2/2F4/2F10 module fieldbus fiber optic expansion, divided into 3 models 2km/4km/10km (paired deployment) for long-distance communication between baseboards, with two FCM2F10s connected in series up to 20km

（4） Bottom plate and shell system

1. Compact 200 Series Baseplate

Core model: 16 slot horizontal bottom plate (RH101AA);

Installation method: Supports horizontal DIN rail installation (standard/non isolated) or 19 inch rack installation (requires installation board);

Key features:

Provide communication backplane and module installation foundation, supporting deployment of 16 Compact FBMs;

Volume optimization: 1 compact base plate+16 compact FBMs occupying approximately 2 standard 200 Series base plates+16 standard FBMs;

Scalability: Supports backplane chain expansion (up to 32 FBMs), allowing for online addition of new baseboards without the need for downtime;

Power and Communication: Provides main/backup 24V DC power interface, dual module fieldbus (A/B) daisy chain interface, supports DIP switch address recognition.

2. Enclosures

Provide environmental protection and equipment integration, divided into G/K series, adapted to different scene requirements:

Series Core Model Protection Level Adaptation Scenarios

G series G13 (system shell), G14 (system+terminal shell), G11 (terminal shell) IP43/54 normal environment, supporting installation of FBM, FCM, FCP and terminal components

The K series K13 (system casing), K14 (system+terminal casing), K11 (terminal casing) have the same IP43/54 functionality as the G series, providing differentiated selection

Common features - built-in DIN rail, power supply interface, terminal block; Support single/redundant power supply deployment; Certified by UL, ATEX, etc., suitable for ordinary and potentially explosive environments

Core technical characteristics and performance parameters

1. High performance and high precision

Analog acquisition: SigmaDelta fast integration ADC is used, with an analog input update rate of up to 25ms, suitable for high-speed regulation and control;

Anti interference capability: Built in configurable moving average filter, effectively suppressing process electromagnetic noise;

Measurement accuracy: Depending on the specific FBM model, the channel isolation module has higher accuracy and error control within the allowable range of industrial grade (such as RTD module supporting 0-320 Ω range, error ≤± 0.1%).

2. High reliability and availability

Component integration: Integrating logic functions such as I/O processing and communication processors through ASIC (Application Specific Integrated Circuit) to reduce the number of module components and lower the probability of failure;

Availability indicators:

Single module (with redundant power supply, MTTR=2 hours): availability ≈ 0.999974;

Redundant module (with redundant power supply, MTTR=2 hours): availability ≈ 0.9999964;

Redundancy support: Full link redundancy options, including power supply, control network FCM、 Control processor, fieldbus cables, and some FBMs, with no single point of failure risk.

3. Environmental adaptability

Working temperature: The maximum working temperature of Compact FBM is 60 ℃ (140 ° F);