Fireye BurnerLogiX BLL510, Manual

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63
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Interpreting Z Model Modbus Values
The calibration constant is factory set to achieve the proper reading at 4mA and 20 mA. It is based
on the actual hardware in the product and the A/D reference voltage in the micro controller at the
time of manufacture. It has a range of 819 to 860 counts and is accessible from register 99 (40100).
This should be the first value read in and used for all pressure and temperature calculations.
The calibration constant is used to convert the actual sensor reading to meaningful pressure or tem-
perature values. The pressure sensors are all 0 psig at the 4 mA and below reading. For the two tem-
perature sensors, 32-350 and 32-752, the maximum range of each is 318 and 720 degrees
respectively.
If the calibration constant represents 20 mA input then 1/5 of that represents 4 mA input or 0.2 times
the calibration constant.
To convert a pressure or temperature reading to actual units, use the following:
(([Reading /calibration constant] - 0.2) / 0.8) * Sensor Range) + Sensor Offset where Reading is the
value returned from modbus register 4101, 40102 or 40103.
40150 149 1 LAG 2 Lag Mode
Except as noted, all boiler
parameters are readable,
FNC 03 and writeable, FNC 06.
Only word writes are provided.
Consult factory or
refer to www.fireye.com
for acceptable minimum
and maximum values
40151 150 1 LAG 2 Start Delay
40152 151 1 LAG 2 Lead to Lag Delay
40153 152 1 LAG 2 Sensor Set Point
40154 153 1 LAG 2 Sensor Cut In
40155 154 1 LAG 2 Sensor Cut Out
40156 155 1 LAG 2 Sensor Mode Range
40157 156 1 LAG 2 Mod Max
40160 159 1 Thermal Shock Method
40161 160 1 Thermal Shock Start Point
40162 161 1 Thermal Shock Exit Point
40163 162 1 Thermal Shock Low Fire Minimum
40164 163 1 Thermal Shock Override Time
40170 169 1 Modulation Mode
40171 170 1 Integral Gain
40172 171 1 Derivative Gain
40173 172 1 Modulation Maximum Position
40174 173 1 Units of Measurement
40175 174 1 Manual Mod Position
40176 175 1 PassWord Level 1
40177 176 1 PassWord Level 2
SENSOR TYPE SENSOR RANGE SENSOR OFFSET
TS350-2, -4, -8 318 32
TS352-2, -4, -8 720 32
BLPS-15 15 0
BLPS-30 30 0
BLPS-200 200 0
BLPS-300 300 0
HOLDING
REGISTER
MESSAGE
ADDRESS WORD
REQUESTED
WORD
RESPONSE
VALUE