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8.5 USING THE AWMT SOFTWARE
The RS-232 and the RS-485 interfaces provide the serial communication between the user's
monitoring and control system and the micro-controller within the AWMT. The user may
employ any RS-232 terminal communications software (Term95, HyperTerminal or equivalent)
or the RS-485 serial communication protocol.
8.5.1 U
RS-232 I
SING THE
Before using the RS-232 Interface, become thoroughly familiar with the items listed in
TABLE 9 at page 35 and TABLE 10 at page 37.
Operate the AWMT via the RS-232 Interface as follows:
1. Switch on the power station's circuit breaker to power up the AWMT.
2. Run any terminal program in the personal computer.
3. Use the following communication parameters:
-
Bits per second: 19200
-
Data Bits: 8
-
Parity: None
-
Stop bits: 1
-
Flow Control: None
4. After running the program in the computer and pressing the <ENTER> key a display similar
to Figure 6 below will be shown.
NOTE:
The micro-controller determines automatically whether the unit is functioning
alone or in a 1:1 redundant system.
5. If necessary, to change the status of the AWMT, use the commands listed in TABLE 10 at
page 37.
NOTE:
At start up the AWMT is in the hand-held Terminal Mode. To change to PC
Mode, type 't2' and then press <ENTER>. For operation with the Hand Held
Terminal type 't1'.
If the Hand Held Terminal model 8045 is used for the RS-232 communication with the unit, the
adequate configuration should be set. In order to set the configuration:
- While simultaneously pressing the CTRL, SHIFT keys press the F1 key.
- In the menu displayed use F1 key to change parameters, F2 & F3 keys to navigate, F4
key to quit (without changing parameters) and F5 key to save the changed values for
parameters. Type again F4 to exit the menu. The required values for parameters are:
NTERFACE
- BAUD RATE: 19200
- DATA BITS: 8
- PARITY: NONE
- STOP BITS: 1
AWMT
33
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