Section 1: General Description; Architecture Of The System - Honeywell H-S81-HS Operation Manual

Section 1: General Description

This chapter provides a general description of the H-S81-HS control panel, listing the system's
main technical features.

1.1 Architecture of the System

The H-S81-HS control panel is a high technology product created for controlling safety-related sys-
tems and equipment. It is characterized by easy configuration and programming, combined with
excellent reliability and system diagnosis. The H-S81-HS is similar to a "safety PLC" and can be
configured and programmed for carrying out integrated safety functions including fire prevention,
gas detection, burglar alarm and technological control in compliance with applicable standards. The
H-S81-HS can also interact with other control panels of the same type and with supervisory sys-
tems via both standard and proprietary protocols such as TCP/IP Ethernet, Modbus RTU, or OPC
Server.
Each system includes a power supply set, a processing unit (which is also the user interface), and
the I/O modules controlling field devices. Both the processing unit and the I/O modules are located
on 19 inch racks. There are two ways of connecting modules and field devices:
• The first solution consists in the use of termination modules equipped with a terminal block
allowing to connect the cables from field device. In this case, I/O modules are connected to the
termination modules by using a 20 way flat cable. The termination module type and the
relevant connections depend on the type of module to be terminated.
• The second solution consists in the use of multi-polar cables directly connected to bus back
through a DIN41618 connector. This solution allows for a redundant module termination. It
also allows for the termination of high current output modules, which is not possible by
adopting the first solution (S81-F5004).
The H-S81-HS system has a modular structure. The processing rack includes two CPUs and an
operator interface panel. Each CPU can be connected to a maximum of 10 racks, with up to 13 I/O
modules each, for a total amount of 130 modules. I/O modules can be installed on the racks without
any limitations, according to the requirements of the specific system under consideration.
H-S81-HS Installation & Operation Manual — P/N LS10114-000HI-E:A 2/24/2015
Figure 1.1 System Architecture
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