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FEATURES Key features of the FBM217 are:  Thirty-Two (32) discrete inputs  Supports discrete input signals at voltages of: • 15 to 60 V DC • 120 V AC/125 V DC • 240 V AC  Single or redundant modules  Rugged design suitable for enclosure in Class G3 (harsh) environments per ISA Standard S71.04  Executes the programs for Discrete Input, Ladder Logic, Pulse Count, and Sequence of Events, with the configurable options: Input Filter Time and Fail-Safe Configuration  Various Termination Assemblies (TAs) that contain: • High voltage attenuation and optical isolation for inputs • External power connection for device excitation. STANDARD DESIGN FBM217 has a rugged extruded aluminum exterior for physical protection of the circuits. Enclosures specially designed for mounting the FBMs provide various levels of environmental protection. VISUAL INDICATORS Light-emitting diodes (LEDs) incorporated into the front of the module provide visual indication of the Fieldbus Module operational status, as well as the discrete states of the individual input points. EASY REMOVAL/REPLACEMENT The module can be removed/replaced without removing field device termination cabling, power, or communication cabling. When redundant, either module may be replaced without upsetting field input signals to the good module. The module can be removed/replaced without removing field device termination cabling, power, or communications cabling. SEQUENCE OF EVENTS The Sequence of Events (SOE) software package (for use with I/A Series® v8.x software and Control Core Services v9.0 or later) is used for acquisition, storage, display, and reporting of events associated with digital input points in a control system. SOE, using PSS 31H-2S217 Page 3 the optional GPS based time synchronization capability, supports data acquisition across control processors at intervals of up to one millisecond, depending on the signal source. Refer to Sequence of Events (PSS 31S-2SOE) to learn more about this package, and to Time Synchronization Equipment (PSS 31H-4C2), for a description of the optional time synchronization capability. Foxboro Evo systems with software earlier than V8.x can support SOE through ECB6 and EVENT blocks. However, these systems do not support GPS time synchronization and use a timestamp sent by the Control Processor which is accurate to the nearest second and does not provide synchronization between different Control Processors. FIELDBUS COMMUNICATION A Fieldbus Communications Module or a Control Processor interfaces to the 2 Mbps module Fieldbus used by the FBMs. The FBM217 accepts communication from either path (A or B) of the 2 Mbps Fieldbus —should one path fail or be switched at the system level, the module continues communication over the active path. MODULAR BASEPLATE MOUNTING The module mounts on a DIN rail mounted baseplate, which accommodates up to four or eight Fieldbus Modules. The Modular baseplate is either DIN rail mounted or rack mounted, and includes signal connectors for redundant Fieldbus, redundant independent DC power, and termination cables. Redundant modules must be located in odd and even adjacent positions on the baseplate (positions 1 and 2, 3 and 4, 5 and 6, or 7 and 8). To achieve the redundancy, a redundant adapter module is placed on the two adjacent baseplate termination cable connectors to provide a single termination cable connection. A single termination cable connects from the redundant adapter to the associated TA. To system configurator applications and monitoring through SMON, System Manager, and SMDH, redundant modules appear to be separate, nonredundant modules. The functional redundancy for these modules is provided by their associated control blocks. TERMINATION ASSEMBLIES Field I/O signals connect to the FBM subsystem via DIN rail mounted TAs. The TAs used with the FBM217 are described in “TERMINATION ASSEMBLIES AND CABLES” on page 7.