Innotech Genesis V4 System - Manual (Page 82)

Installation Instructions for Innotech Genesis Systems
Edition 011100
A-1
APPENDIX A- NETWORK INSTALLATION
A-1. OVERVIEW.
The Innotech Genesis group of products uses serial communications (Comms) via standard
RS485 physical networks to communicate data between themselves and to PCs connected to the
network. The layout of the cables and the methods of connecting them are set out in this section.
A-2. GENESIS I AND GENESIS II PRODUCTS.
The Genesis I and Genesis II products that can be connected to the serial Comms are:
•
Genesis I Digital Controller
•
Genesis II Digital Controller
•
GENII MPI Modem and Printer Interface
•
GENII RPTR Repeater Module,
•
GENII CONVERTER RS232 to RS485 Isolated Converter
•
GENII 485I Isolated RS485 Comms
•
GENII POLY SWITCH RS485 Protection Plug.
•
GENII RMI Remote Module Interface
•
Genesis II Mid Points Controller (MPC)
•
All Genesis II Remote Expansion Modules (REMs)
The Genesis I Digital Controller, Genesis II Digital Controller, GENII MPI and GENII RPTR
have two serial networks: Net Comms and Global Points.
A-2.1. NET COMMS. Net Comms provides a means to configure or monitor Digital
Controllers from a PC at a speed of 9600 baud. A local PC can be connected to the Net
Comms via an MPI or via an RS232 to RS485 converter. A PC with a modem at a remote
location can access this network through the telephone system via a modem connected to an
MPI on the Net Comms.
Caution must be exercised if a PC and an MPI or more than one PC is directly connected to the
Net Comms. Only one of these can be active at a time or there will be a conflict between them
causing the data to be corrupted.
Local access to an individual Digital Controller can be made via its RS232 DB9 connector.
The Digital Controller is disconnected from the RS485 Net Comms when this connection is
activated. The PC cannot access the Net Comms via this RS232 connection.
A-2.2. GLOBAL POINTS. The Global Points network provides a means for control
data to be shared among the Digital Controllers and a GENII MPI at a data speed of 4800
baud. There is no facility to connect a PC to the Global Points network through a Digital
Controller or GENII MPI. If it is necessary to monitor the Global Points traffic, a GENII
CONVERTER can be used to connect to the Global Points Comms cable and use the Genesis
Global Points Monitor software to view the data.