Foxboro FCM10E Fieldbus Communications Module

Foxboro FCM10E Fieldbus Communications Module

Description

The FCM10E Fieldbus Communications Module is a communications interface which allows the DIN rail mounted Fieldbus Modules (FBMs) to communicate with I/A Series control stations via the high speed, optionally redundant 10 Mbps Ethernet trunk Fieldbus (see Figure 1). The FCM10E converts 10 Mbps Ethernet signals used by the control station to 2 Mbps signals used by the FBMs, and vice versa. They also provide galvanic isolation between the 10 Mbps Ethernet trunk Fieldbus and the 2 Mbps module Fieldbus.

The FCM10E modules are used in pairs for redundancy. An FCM10E (or pair of FCM10E modules) can support up to 30 FBMs.

FCM10E modules have a compact design, with a rugged extruded aluminum exterior for physical protection of the circuits. Up to 30 FCM10E pairs can be connected to the Ethernet trunk Fieldbus.

Enclosures specially designed for mounting of DIN rail mounted FBM equipment provide various levels of environmental protection for the Fieldbus Communications Modules, up to harsh environments per ISA Standard S71.04.

The FCM10E can be removed/replaced without removing power or communications cabling.

Six light-emitting diodes (LEDs), incorporated into the front of the FCM10E Fieldbus Communications Modules, indicate the status of network activity to/from the control station and the associated FBMs, and the operational status of the FCM10E.

For redundant configurations, two FCM10E modules are required for each FBM grouping. A non-redundant configuration requires a single FCM10E for each grouping. Figure 1 shows how FCM10E modules are used in a typical subsystem configuration.

Technical Specifications