Promag TR515 User Manual page 7

Understanding machine numbers
For single-terminal RS232 communications, you needn't specify your
TR515's machine number.
For multi-terminal RS485 communications you must make sure that all
Terminals on the network have unique machines numbers. Machine number is
a network address that uniquely identifies the Terminal on the network. Having
two different Terminals on the network set up to the same machine number will
result in the inability to communicate with both Terminals.
Machine number can be in the 0 to 255 range (00-FF Hex). 0 is a universal
machine number- any Terminal responds to it regardless of this Terminal's
actual machine number setting. Machine number of 0 can be used for RS232
communications- you only have a single Terminal in this case, so you can
address it with the universal number.
For multi-terminal RS485 communications, you'll need to assign a unique
(and non-zero!) machine number to each Terminal on the network.
Assigning machine numbers
The TR515 offers a fast and convenient way of assigning machine numbers
in the range from 0 to 10. To assign a new machine number:
•
Power the Terminal down (unplug the power cord)
•
Press and hold the OUT button
•
Power the Terminal up while continuing to hold down the OUT button
•
After 2-3 seconds, the Terminal will beep and display its current
machine number, for example:
•
While still keeping the OUT button pressed, push the IN button
(several times if necessary) to change the machine number to the
desired value
•
When the desired machine number is displayed, release the OUT
button- the Terminal will resume normal operation
This method allows you to set the numbers in the 0-10 range only (which
would actually cover most of the actual installation requirements). If you need to
set the machine number to, say, 25, then you will have to follow this procedure:
•
Connect the TR515 to the PC using the RS232 cable
•
Launch the TR515 Control Center software and select the Terminal
TR515 User's Manual
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