DECODE EMU Series Benutzerhandbuch - Seite 12

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EMU - User manual v1.2

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.

Address

40001

40002

40003

40004

40005

40006

40007

40008

40009

40010

40011

40012

40013

40014

40015

40016

40017

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Variable EMU C3

CT1 current (x1mA)

CT2 current (x1mA)

CT3 current (x1mA)

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

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

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Modbus communication

Variable EMU A3

Current 0-25mA (x1μA)

Temperature (x0.01ºC)

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