Foxboro P0916WG Control Module

MODULE FIELDBUS COMMUNICATION

The ISCM supports the redundant 2 Mbps HDLC

module Fieldbus to communicate with the FCP270

or ZCP270 (via optionally redundant FCM100E/Et

modules), as shown in Figure 5 and Figure 6.

The FCP270 can connect to both P+F I/O modules

and 200 Series FBMs, provided the appropriate

sizing constraints are followed (detailed in the Field

Control Processor 270 (FCP270) Sizing Guidelines

and Excel Workbook (B0700AV) and Z-Module

Control Processor 270 (ZCP270) Sizing Guidelines

and Excel Workbook (B0700AW)). To connect

simultaneously to 200 Series FBMs, the FCP270

must use the FEM100 to add up to three Expanded

Fieldbuses for these FBMs.

NOTE

The FCP270. 200 Series FBMs and their

support hardware are suitable for Zone 2 or

Class I, Div.2 areas only. Installing this

equipment in a Zone 1 area requires the

employment of additional protection

methods and is your responsibility to

implement.

When an FCP270 is connected to both P+F

I/O modules and 200 Series FBMs via an

FEM100. the Expanded Fieldbus 1 cannot

be connected to any FBM baseplates (must

be left disconnected), and Expanded

Fieldbus 2 can only be used with FBM

baseplates addresses 1. 2 and 3 to avoid

letterbug addressing conflicts. Expanded

Fieldbus 2 and 3 can connect and address

all four baseplates (0 through 3).

For more information on the FEM100 and the

Expanded Fieldbus, refer to FEM100 Fieldbus

Expansion Module (PSS 21H-2Y16 B4).

To connect to a ZCP270. the ISCM connects to an

FCM100E/Et module, which in turn connects to the

ZCP270 over a 100 Mbps Ethernet fiber optic

network (via The MESH control network).

For Zone 2 (LB-style) applications, a maximum of

60 meters (197 ft) of standard fieldbus cable may be

used between the FCP270 or FCM100E/Et and the

remote I/O system. For Zone 1 (FB-Style)

applications, a maximum of 152 meters (500 ft) of

high quality twinaxial cable may be used between the

FCP270 or FCM100E/Et and the remote I/O system.