ABB LD 800HSE, Manual

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Integration into the Industrial IT System Structure Section 1 Introduction
18 3BDD011677-600 A
Integration into the Industrial IT System Structure
Within a typical Industrial IT system structure as shown in Figure 2 , a
FOUNDATION Fieldbus subsystem is linked to the control system via the HSE
subnet. The linking devices LD 800HSE serve as gateways between the field
devices on the H1 links and the HSE subnet. The FOUNDATION Fieldbus
subsystem consists of linking devices and possibly other devices which
communicate with one another using the HSE protocol and subsidiary H1 links. As
a device registered as a class 42c device of the HSE profile the LD 800HSE allows
process data that are being published cyclically on the subsidiary H1 links to be
republished on the HSE subnet. By using HSE republishing, it is possible to
configure cyclical communication between field devices on different H1 links and
devices on the HSE subnet. Furthermore alarms and events from H1 devices are
communicated to the Connectivity Servers FF, thus allowing seamless integration in
the overall 800xA alarm management philosophy.
The displayed system structure also includes redundant LD 800HSE. The
corresponding H1 ports of both physical linking devices making up a redundant set
of linking devices are connected to the same H1 link. Both physical devices
belonging to a redundant set are connected via a serial RS-232 null modem cable for
exchanging redundancy control information.