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Communication Interface Section 1 Product Overview

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Communication Interface

A number of communication modules can be connected to the controller. See

Appendix A, IndustrialIT System 800xA AC 800M Controller - Data Sheet for

more information on the various modules.

Communication Interface connected with CEX bus:

Up to 12 communication units can be placed on Communication Expansion Bus

(CEX) bus.

The CEX bus must be terminated if a communication unit is connected. A CEX bus

termination is delivered with the e CPU: tb850 (male) or TB851 (female).

An extension cable TK850 with connector DB25P with metal housing and a length

of 0.7meter (1.3') can be used for extending the CEX bus to a second din rail.

S800 I/O

S800 I/O is a distributed and modular I/O system that communicates with

controllers over PROFIBUS-DP/DPV1 or direct (via Modulebus).

The S800 I/O system is DIN rail mounted and consists of Fieldbus Communication

Interfaces, Modulebus Modems, S800 I/O modules and Module Termination Units

(MTU). S800 I/O modules (not S800L) are mounted on MTU's, this makes them

hot-swappable. Depended on the mounting requirement (horizontal or vertical) and

on the field termination needs (powering, fusing etc.) there are numerous of MTU's

to choose from.

The S800 I/O system supports fully redundant applications, redundancy can be built

in on both communication level and I/O module level.

S800 I/O connected with PROFIBUS- DP/DPV1:

• Field Communication Interface CI801 or CI840 is the I/O station master

• Maximum 24 I/O modules per I/O station

• 1 base I/O cluster with up to 12 I/O modules (connected via electrical

Modulebus)

• 1-7 additional I/O clusters with up to 12 I/O modules per cluster (connected via

optical Modulebus using Modulebus Modems)

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Siemens EF 837 Series Especificaciones Pagina 12