Line
Description
:T6, Port Hold 1
This line is the text for direct sensor 6 which will display on the LCD.
For each direct input 20 characters can be assigned.
*T4, AccomBlock This line is the text for addressable sensor 4 which will display on
the LCD. For each of the 64 addressable sensors up to 20
characters can be assigned.
:G1,%LeL^ ,
This line selects a gas type for gas sensor 1 appropriate gas sensor
must be fitted in the system. All 16 direct types can be selected
(Note: this does not apply to CAN addressable sensors as they
transmit their gas type to the control panel.)
:HiAlarm 2,400
The high alarm point for direct sensor 2 is 400 divided by 10 (40.0).
High alarms can be set according to the type of gas and the value
represents 10 times the actual value (this is to avoid decimal points
in the data).
:LoAlarm 1,200
Ditto for sensor 1 low alarm point.
:OrAlarm 3,998
Ditto for sensor 3 over range alarm
:X
This terminates the text transmission to the panel and should always
be at the end of the text. (Note: with the exception of :X, using *T,
*H etc. sets the parameters for addressable sensors) Text lines after
:X is ignored. If an :X is not included in the file then the panel will
eventually time out but this may take a few minutes.
Having edited the text to suit the installation, it can now be sent back to the panel using
ENGINEER’S
menu 29 PC to panel.
Again, Hyper-terminal is used but this time the Transfer/Send text file option is used.
When prompted, choose your modified text file as the one to send and then the text
should start to flow. The output seen on the Hyper-terminal screen consists of the
command letters received so strings of T or H, etc are seen which lets you know that all
is well. The final letter seen will be an X and at this point the new data sent is stored in
non volatile memory on the processor board.
Real time clock
On the main processor board a real time clock chip keeps time and this can be set using
USER
menu 2 in conjunction with the
UP (1)
and
DOWN (5)
buttons and
SELECT (3)
.
To ensure that the clock keeps time when no power is applied, a large value capacitor on
the PCB provides power to the clock for up to 24 hours.
If the processor board is unpowered for longer than this, it is probable that the clock will
have to be reset to local time before use.
It is important to keep the clock correct since this time is used when recording events in
the event log and also for the RS232 output log to a PC.
Refresh Rate
The display of sensor gas levels on the display is cyclical.
ENGINEER'S
Menu 5 allows you to change the amount of time that data is displayed;
slower refresh rates tend to be used when the number of sensors is small. Using
+ (4)
and
– (2)
buttons this rate can be set to fast ‘1’ to slow ‘10’ or any number in-between.
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