ESP Safety UPES-50D, Operating Manual, Page: 15 / 51

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When the search for the channel boards is complete, the test program is initiated. The ("Autotest
Elektronstandart-Pribor") message is displayed on the display in the top row as a crawl line, and
in the bottom line the software version and year of manufacture is displayed. LEDs of the
channel cards initialized flash on alternately. In 30 seconds testing stops. Autotest can be
interrupted by pressing the ("Test") button.
Search Options
If the central board has not found any channel card, the (“Error! No Channel card”) message
appears on the display.
The central board controller transmits the search command to the channel boards sensors
connected. The central board controller alternately scans the search condition of each channel
card. If the UPES autotest has been interrupted by pressing the ("Test") button, the channel
boards expect sensor initialization for 20 seconds, and in this case the indicator in the bottom line
displays the (“Sensors Warm-up”), and in the top line the number of the channel card connected
is changed alternately. After the channel card has completed waiting for warm-up, the sensor
search program starts. If in the channel card memory the MODBUS addresses and sensor types
have been recorded, the channel card controller searches for sensors per this list, otherwise the
search is performed by screening all sensor types in the MODBUS addresses from 1 to 16. The
status of the search for each channel card is displayed alternately on the display. The top line
displays the channel number and the search percentage completion, and in the bottom line
displays the search mode:

(“Search”) search all types of sensors in all the MODBUS addresses from 1 to 16

("Address search") search sensors in the MODBUS addresses specified by the
operator;

(“Search by type”) — search sensors by the types of sensors specified by the
operator:
o
SSS —SSS-903, gas analyzer,
o
SGO — SGOES-М11, SGOES gas analyzer,
o
FRE – IPES fire detector,
o
PGU —primary universal transducer,
o
SSM – ССС-903МЕ gas analyzer.
o
TGA – TGAES gas analyzer

(“Search per the list”) search sensors by the MODBUS address specified by the
operator and sensors corresponding to its type.
The channel card controller having found all the sensors, will display the number of the sensors
found during the next search state scan performed by the central board. The indicator for this
card will display the channel number and number of sensors in the top line and in the bottom line
— the (“Sensors Found”) message. The central board controller will scan the search status of
each channel board until all boards have completed their sensors search. The channel board
controller having completed the sensors search automatically enters into the scan mode for the
parameters modified by the sensors and thresholds state monitoring.
Once all the channel boards have completed the sensors search program, the central board
controller prompts for the MODBUS addresses of each channel board, types of the sensors
found, gas codes, and units of measurement. Having received this information, the central board
switches to the scan mode of the measured parameters and the sensors monitoring mode. If the