63
®
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
Содержание BurnerLogiX BLL510
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