VESDA Sensepoint XCL – Large Bore Installation Manual
VESDA
Modbus
Register
Address
Information
R/W
Type
Size
Description
Notes
30020 to
30021
Latched Fault
R
u32
2
Value is fixed to 0x00
Not used (always non-latched)
30022 to
30034
Location Tag
R
string [26] 13
Location tag for BLE scanning
30035 to
30036
Gas reading (by status)
R
f32
2
Gas reading value calculated by device status (i.g
negative value in fault status )
1. If device is in Inhibit state, return value is base
concentrate of sensor data (In case of ECC,
Noramlly 0)
2. If device is in fault state, return value is : return =
f32_gas_full_scale / 16 * (fault current value of
configuration - 4.0);
3. If device is in warning state, return value is : return
= f32_gas_full_scale / 16 * (warning current value
of configuration - 4.0);
same as '40133 to 40134'
Holding Registers
40101
System ID Code
R
u16
1
MSB always 0x26 to facilitate automatic identification
LSB repeat of Modbus address.
l
UpperByte: Type Code: 0x26
l
LowerByte: My address
40102
System ID Code
R
u16
1
Identical to 40101.
l
Upper Byte : Type Code : 0x26
l
Lower Byte : My Address
40103 to
40104
Gas Reading
R
f32
2
The reported gas concentration in current
measurement units. For example, methane at 50% LEL
would be reported as 50.0 here.
This concentration is forced to last reading before
switching into inhibit mode during inhibit mode.
40105
Fault and Warning ID
R
u8
1
This is the integer representation of the fault status. If
any fault exists this will take a value in the range 1200
to 1999. Otherwise, if any warning exists, this will take
a value in the range 1 to 999. Normally, this has the
value zero.
l
Fault = 1200 + Number
l
Warning = Number as is
39
www.xtralis.com
Summary of Contents for VESDA Sensepoint XCL
Page 2: ......