User manual

105G Wireless Gateway User Manual
Elpro_man_105g_1.18.doc Page 40
Chapter 4 Configuration
4.1 Introduction
A Windows program is provided to configure the 105U system. The configuration is done on a
system basis - referred to as a “project” in the program. After the system configuration is
entered, the configuration file can be loaded into each module via the RS232 port.
Each Project is configured with:
• a system address, which is common to every module in the same system, and is used to
prevent "cross-talk" between modules in different systems. Separate networks with different
system addresses may operate independently in the same area without affecting each other.
The system address may be any number between 1 and 32 767. The actual value of the
system address is not important, provided all modules in the same system have the same
system address value. A system address of zero should not be used. The configuration
program automatically offers a random number for the system address - you can change this
to any number in the valid range but we recommend that you use the random number.
• a password for access protection. This is an optional feature. If selected, the project file can
only be opened by entering the correct password.
• a security encryption key, used to encrypt and decrypt radio messages. This is an optional
feature. If selected, the configuration program will offer a random security key, or this can
be over-written with your own key. A key is a string of any 8 ASCII characters.
Each module in the project is configured with a unit address. Each module must have a unique
unit address within the one system. A valid unit address for a 105G is 1 to 95. A network may
have up to 95 addresses communicating directly via radio (unit addresses 1 to 95). 105U I/O
modules can have up to 10 serial expansion modules communicating via RS485 (unit addresses
96 to 127).
The configuration program may allocate more than one unit address to a 105G if it is required
because of the size of the system. If this is necessary, it will be done automatically by the
configuration software.
Configuration consists of:
1. selecting the types of modules in the system and selecting address values
2. linking (called “mapping”) I/O registers to remote I/O
3. setting operating parameters such as change sensitivities and update times
4. selecting “block mappings” - only for block transfer of I/O registers between 105G modules
5. selecting fieldbus addressing, and serial port configuration (Modbus & DF1 only)
6. linking Radio Interface registers to Fieldbus Interface registers (All modules except MD1)
All of these steps must be performed to configure the 105G module.