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bit
description
31
: DI2 Status: Digitial input 2 signal condition (active or passive).
30
: DI1 Status: Digitial input 1 signal condition (active or passive).
29
: Relay 2 Status: Relay 2 active/pasive status.
28
: Relay 1 Status: Relay 1 active/pasive status.
27
: DO2 Status: Digital Output 2 active/pasive status.
26
: DO1 Status: Digital Output 1 active/pasive status .
25-21
:Reserve.
20
: SEQ - Phase Order Alarm.
19
: I3 OFF - 3. No current in Line-3.
18
: I2 OFF - 2. No current in Line-2.
17
: I1 OFF - 1. No current in Line-1.
16
: V3 OFF - 3. No voltage in Line-3.
15
: V2 OFF - 2. No voltage Line-2.
14
: V1 OFF - 1. No voltage in Line-1.
13
: Freq Low - Low frequency alarm.
12
: Freq High - High frequency alarm.
11
: PF Low - Low power factor alarm.
10
: PF High - High power factor alarm.
9
: Cos φ Low - Low Cos φ alarm.
8
: Cos φ High - High Cos φ alarm.
7
: I(N) Low - Low neutral current alarm.
6
: I(N) High - High neutral current alarm.
5
: I Low - Low current alarm.
4
: I High - High current alarm.
3
: V(L-L) Low - Low phase-phase voltage alarm.
2
: V(L-L) High - High phase-phase voltage alarm.
1
: V(L-N) Low - Low phase-neutral voltage alarm.
0
: V(L-N) High - High phase-neutral voltage alarm.
ATTENTION!
If the device was not restarted after entering the password or the "password activation time" has not elapsed, this will read
"0" to indicate that password protection is disabled in the "Settings protection" address (modbus adr: 604). In this case,
you don't need to re-enter the password.
Password activation time resets and restarts each time a modbus write action is performed or a key is pressed.
4.2 MULTIPLE CHOICE SETTINGS VIA MODBUS
Modbus addresses for the multiple choice settings, input values and their descriptions are given below.
address register name write value description name
Connection
538
Type
Relay 1
540
Function
Relay 2
542
Function
Password
546
Enable
552
Baud Rate
556
Parity Control
28 | Electronic Multimeter - MMW03-CH
0
StA
1
dEL
0
OFF
1
LO
2
HI
0
OFF
1
LO
2
HI
0
OFF
1
ON
0
1200 baud
1
2400 baud
2
4800 baud
3
9600 baud
4
19200 baud
5
38400 baud
6
57600 baud
0
nOn
address register name write value description name
Digital Input 2
564
Type
Digital Input 2
568
Edge
Pulse Output 1
570
Parameter
0
OFF
1
tr2
2
Cnt
3
run.
0
rIS
1
FAL
2
bot
0
OFF
1
IA1
2
EA1
3
Ir1
4
Er1
5
IA2
6
EA2
7
Ir2
8
Er2
9
dI1
10
dI2
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