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envea STACK 710 User Manual

envea STACK 710
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4 Getting Started STACK 710
38 (PC-000878-MA Issue 7, December 2021) ENVEA UK Ltd
4.13 Modbus Registers
               

Note: The definition of Register Numbers given in the Modbus standard can confuse. For
historical reasons, Registers are given decimal numbers beginning at 1, but
Register 1 is located at Address Offset 0. Register numbers are always one greater
than their associated bus addresses. The Table below uses Register Numbers.
4.13.1 Scaling


4.13.2 Read-Only Registers
Modbus
Register
Data
Value
Description
Range
Scaling
127
Opacity
Calculated opacity
-25% - 100%
x100
128
Optical
density
Calculated optical
density
-1 - 3
x1000
129
Dust
density
Calculated dust
density
0 - 9999
x1
130
Dust
density
fractional
Fractional
part of the
dust density
(Reg 503)
0 - 99
x100
131
Average
optical
density
Average
optical
density
during
gravimetri
c test
-1 - 3
x1000
132
Stored
Average
Optical
Density
Stored average
optical density
-1 - 3
x1000
133
Held
opacity
Calculated opacity
not updated during
a cal audit or a cal
check
-25% - 100%
x100
134
Held optical
density
Calculated optical
density not
updated during a
cal audit or a cal
check
-1 - 3
x1000
135
Held dust
density
Calculated dust
density not
updated during
a cal audit or a
cal check
0 - 9999
x1
136
Held dust
density
fractional
Fractional part of
the held dust
density (Reg 506)
0 - 99
x100
73
Alarm
status
Transceiver alarm
0 = Inactive
1 = Active
NA

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envea STACK 710 Specifications

General IconGeneral
Brandenvea
ModelSTACK 710
CategoryMeasuring Instruments
LanguageEnglish