Foxboro FBM233 Field Device System Integrator Module, 10/100 Mbps Ethernet, Redundant

 Product Details:

FBM207/B/C Datasheet.PDF

The FBM207/b/c Voltage Monitor/Contact Sense Input Module functions as a 16- channel DC voltage monitor or 16-channel contact sensor. Each channel accepts a 2-wire input from a dcvoltage source (FBM207) or pair of contacts or solid state switches (FBM207b/ FBM207c).

Associated termination assemblies (TAs) support discrete input signals at voltages of 60 V dc, 120 V ac/125 V dc, or 240 V ac. For voltages higher than 60 V dc, the TAs have additional signal conditioning hardware that provides voltage attenuation and optical isolation.

The module is available in three distinct types, and each type with its associated TA supports discrete inputs as shown below:

Each discrete input is galvanically isolated from other channels and ground. Group isolated when used with external excitation.

The module can be used as a single unit, or as a redundant pair (two FBM207s).

When used as a redundant pair, the modules combine to provide redundancy at the Fieldbus Module (FBM) level, with field input signals received from one common termination assembly though a redundant adapter affixed to the baseplate of the FBM.

The input current for redundant modules is doubled. 

A redundant digital input block in the Foxboro DCS Control Software validates each input in conjunction with information to/from the module, and selects the input with the highest quality for processing in the control strategy. 

Features:

FBM207 supports 16 discrete input signals at voltages of:

◦ 15 to 60 V dc - voltage monitoring

◦ 120 V ac/125 V dc - voltage monitoring or switch inputs

◦ 240 V ac - voltage monitoring or switch inputs

• Each input is galvanically isolated, and group isolated with external excitation

• Single or redundant modules

• Rugged design suitable for enclosures in Class G3 (harsh) environments

• Executes programs for Discrete Input, Ladder Logic, Pulse Count, and Sequence of Events with configurable Input Filter Time option

• Termination Assemblies (TAs) for locally or remotely connecting field wiring to FBM207/b/c

• Termination Assemblies for per channel internally loop powered devices

• Various Termination Assemblies (TAs) have additional signal conditioning hardware that provides voltage attenuation and optical isolation