DECODE EMU-C3 Benutzerhandbuch - Seite 12
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5.2 Internal Modbus memory map
The memory map is the same in all three variants, except that the measurement units are
different. The address is given in relation to the so-called "Base 0". Addresses referenced to
"Base 1" are incremented by one. All registry values for C3 and V3 variants are in uint16
format and for A3 variant are in int16 format.
Register
Address
40001
0
40002
1
40003
2
40004
3
40005
4
40006
5
40007
6
40008
7
40009
8
40010
9
40011
10
40012
11
40013
12
40014
13
40015
14
40016
15
40017
16
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Variable EMU C3
CT1 current (x1mA)
CT2 current (x1mA)
CT3 current (x1mA)
0 – not in use
0 - not in use
0 - not in use
0 - not in use
CT1 span calibration L1 span calibration
CT2 span calibration L2 span calibration
CT3 span calibration L3 span calibration
0 - not in use
0 - not in use
0 - not in use
Modbus address (1-247)
Serial speed (0, 1, ... , 5)
0 - 1200
1 - 2400
2 - 4800
3 - 9600
4 - 19200
5 - 38400
6 - 57600
7 - 115200
Serial format (0, 1, 2)
0 - No Parity
1 - Even Parity
2 - Odd Parity
Command for writing registers 40008 - 40016 to non-volatile
memory. In SETUP mode, writing 11111 starts the command and
returns the register value to 0 after execution. In NORMAL mode,
the value does not return to 0 and the command does not execute.
Variable EMU V3
L1 voltage (x10mV)
L2 voltage (x10mV)
L3 voltage (x10mV)
L12 voltage (x10mV)
L23 voltage (x10mV)
L31 voltage (x10mV)
Frequency (x0.01Hz)
L12 span calibration
L23 span calibration
L31 span calibration
12/15
Modbus communication
Variable EMU A3
Current 0-25mA (x1μA)
Current 0-25mA (x1μA)
Temperature (x0.01ºC)
0 - not in use
0 - not in use
0 - not in use
0 - not in use
IN1 span calibration
IN2 span calibration
IN3 span calibration
IN1 offset calibration
IN2 offset calibration
IN3 offset calibration
EMU_UM_V12_05042020.pdf