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V: 1.0 Revised: Jan. 2018
AcuRev 1310
70
DIN-Rail Power Meter
2. Preset/Reset Multi-Registers (Function Code 10H)
Function code 10H allows the user to write the contents of meters registers such as system pa-
rameters and energy initialization.
Below is an example on writing a value to the meters total active energy (0.2kWh).
Table 5-6 Preset Energy Data
Addr
Fun
Byte Count Data start
register hi
Data start
register lo
# of regis-
ters hi
#of regis-
ters lo
Byte Count
11H
10H
0CH
09H
00H
00H
00H
02H
Value hi
Value lo
Value hi
Value lo
CRC16 hi
CRC16 lo
00H
00H
00H
14H
CDH
30H
5.3 Application Details
5.3.1 Data Types
The data types supported by the AcuRev 1310 series meter have the following meanings:
Bit-binary value
Word-16 bit unsigned integer using one register that contains 2 bytes. The data range is
0-65535.
Int16-16 bit signed integer using one register that contains 4 bytes in total. The high bytes
follow the low bytes in this data type. The data range is 0-4294897295.
Int32- 32 bit signed integer using two registers that contains 4 bytes in total. The data range
is from 327698~32767.
Float-Single precision floating point number using two registers. The data range is-
2147483648~22147483647.
5.3.2 Relationship between Communication value and Real value
The measurement values from the AcuRev 1310 series meter obtained through Modbus
may not always be equal to the real value. The values may be scaled or a relationship may
need to be applied.
Note:
It is very important that the user is aware of these relationships when designing pro-
grams to poll the meter, otherwise the values may not be accurate.