MRBP.425241.001 UM version 1.1 01.05.2022 FD 329/330-3-
1 «Vega»
27
- in cases of defects caused by force majeure (consequences of natural disasters, fires,
floods, high-voltage discharges, lightning, etc.), accident, intentional or careless actions of the
consumer or third parties.
Appendix A
FD 329/330-3-
1 «VEGA» digital output* protocol parameters
* Modbus RTU protocol support is included in the basic version,
On request, detectors are deliveres with Hart interfaces support
Flame detector FD 329/330-3-
1 «VEGA» is designed to issue an alarm to fire alarm control
and indicating equipment in the event of a fire in their field of vision. Communication with fire
alarm control and indicating equipment is carried out by analogue channels 4..20 mA, dry relay
«Fire» and «Failure» contacts as well as by digital channel, containing all the information,
available at the outputs above.
Fire presence or absence and service parameters are transmitted to the upper-level
controller via the RS-485 interface using the MODBUS protocol. FD 329/330-3-
1 «VEGA»
supports the following command types:
-
reading from the device. Command code 04;
-
word recording. Command code 06.
Address map carrying information about the
detector’s state.
Address 0x01
– upper byte contains detector’s number (address) (unsigned number)
lower byte determines the exchange rate over the RS-485 channel:
0x01 - 1200 baud
0x02 - 2400 baud
0x04 - 4800 baud
0x08 - 9600 baud
0x10 - 19200 baud
Адрес 0x02 – 16-bit register of the detector’s state with the following information bytes:
Upper byte
– set detector’s mode in the format ХХХХХD2 D1 D0,
where D2: 1 - fixation, 0
– fixation disabled;
D1: 1 - far, 0
– near;
D0: 1 - fast, 0 - slow.
Lower byte
– current detector’s mode in the format ХХХХХD2 D1 D0,
where D2: 1
– glass contamination, 0 - standard
D1: 1 - failure, 0 - standard
D0: 1 - fire, 0 - standard.
The contents of the register at address 0x02 are read-only. Detector
’s parameters (fixation,
far/near, fast/slow) change is carried out by hardware using switches in the input compartment.
To change the detector
’s address it is necessary to write the number of this device in the
range from 0x01 to 0xF7 into the register with address 0x01, placing it in the upper byte of the
register.
