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Chapter Four
Configuration
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4.2
Addressing
A WI-MOD-9-D network comprises modules with the same "system" address. The system
address is a 8 bit value (values 0 to 255). Only modules with the same system address will
communicate with each other. If you are adding another module to an existing system, use the
same value as the existing modules. If you are starting a new system, select random values and
use the same value for each module.
In transparent mode, a group address also needs to be configured. The group address is also a 8
bit value (values 0 to 255). This is not required in controlled mode.
In controlled mode, each module is also configured with a unit address between 0 and 127 -
there can be up to 128 modules in the one controlled mode system. If fast controlled mode is
used, the unit address must be between 0 and 15 (there can only be two modules in any one fast
controlled mode system).
In transparent mode, the unit address is used as the second group address for transparent
repeaters. For modules not configured as a repeater, the unit address is ignored. For repeaters,
if a message is received with the correct system address, and the first group address, the data is
output to the serial port, and the message is re-transmitted but with the second group address
inserted.
If a repeater receives a message with the correct group address, but with the second system
address (corresponding to the configured unit address), then the data is not output to the serial
port, but the message is re-transmitted, but with the first or normal group address inserted.
4.3
Default Configuration
The default configuration of the WI-MOD-9-D is transparent mode, no error check, no
CTS/RTS flow control, serial rate 9600, radio rate 19200, character type 8/n/1. The system
address will be set in the factory according to the module serial number.
The module may be forced to factory default setting by using any of the three configuration
methods.
4.4
Configuration Program
The configuration program is Cfg_WI-MOD-9-D. This program will run under Windows 95, 98,
NT, or 2000. The program may be obtained from the Product CD which came with your
purchase, or can be downloaded from our web page. When you use this program, you create a
configuration in the PC and then load or program the configuration into the WI-MOD-9-D
module. You can also read the configuration from a module to edit.
The opening screen will show default settings with a random number for the system address.