Select item to be changed (year, month, day, hour, minute, second) with “L” and “R” keys.
The selected value will be highlighted with a flashing cursor. Then set the required value with
“U” and “D” keys. If date and time are set correctly, press the “OK” key.
2)
RS232 Port Settings
- allow changing transmission parameters
Change RS232 port settings:
Operation mode
- Modbus RTU Slave
Slave address
- 1
Speed
- 9,600 bps
Data bits
- 8
Parity
- Even
Stop bits
- 1
Exit
a) Operation mode
- Printer - text messages sent to a port in the following format:
e.g. 2006-09-02 12:23:45 - Detector 01 - Alarm A1
2006-09-05 18:48:23 – Zone 1 – Absent Valve1;
- Modbus RTU Master - the protocol controlling the hub of RWS08(16) contact outputs
or other;
- Modbus RTU Slave - the protocol for communication of the unit with external control
systems (the detailed description of readout and saving of the unit’s register has
been appended to the instruction as: “MDP - Modbus/RTU protocol” - available
upon request);
b) Slave address - unit’s address (slave device) - change from 1
÷
247;
c) Speed - 9,600 bps or 19,200 bps;
d) Data bits - 8 data bits;
e) Parity - even or none;
f) Stop bits - 1 stop bit with parity control; 2 bit stops with no parity control;
3)
Operation parameters -
allows changing unit’s functionality.
Change:
SERVICE MODE
- enabled / disabled
AUTO RESET
- enabled / disabled
CABLE HUB
- none / connected
Exit
Change – press
a)
SERVICE MODE
- allows blocking unit’s outputs for the time of 120 minutes.
Recommended during conduct of maintenance of gas detection systems. In this mode
measuring activities of the unit are maintained, i.e. the unit controls the status of
connected detectors, status of alarm inputs, displays information on alarms and failures
on the LCD screen, but does not activate outputs. The mode can be turned off at any
moment before the lapse of the full period.
b)
AUTO RESET
- the mode automatically reset the unit’s memory of alarm statuses after
alarm decay; intervention of system user is not required. There are no information on
alarm, which has ended on the LCD screen. Acoustic signals are also switched off.
Information about occurred alarms are saved to the unit’s internal memory. The mode
can be activated for an indefinite time. Especially recommended in ventilation control
systems.
c)
CABLE HUB
– in "none " (the standard for the MDP-4 ...) allows you to connect the
measuring detectors directly to MDP - without cable hub K-8(16)P; mode "connected"
means the work with an attached hub K-8(16)P (standard mode for the MDP-8 (16 )...).
MDP-4(8,16)… Instruction Manual
edition 6PU63en
©gazex’2011 v1101
Page 16
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