
NICE3000
new
User Manual Description of Function Codes
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Table 7-2 Definition of LED segments
LED
No.
Corresponding Normal Modbus
Communication Address of LED
Meaning of Segment ON
A
B
C
D
E
F
G
DP
HOP Modbus Communication
Normal
1
1
2
3
4
5
6
7
8
A
B
C
DP
D
E
F
G
2
9
10
11
12
13
14
15
16
3
17
18
19
20
21
22
23
24
4
25
26
27
28
29
30
31
Reserved
LED
No.
Corresponding Abnormal Modbus
Communication Address of LED
Meaning of Segment OFF
A
B
C
D
E
F
G
DP
HOP Modbus Communication
Abnormal
1
1
2
3
4
5
6
7
8
A
B
C
DP
D
E
F
G
2
9
10
11
12
13
14
15
16
3
17
18
19
20
21
22
23
24
4
25
26
27
28
29
30
31
Reserved
LED
No.
CTB CANbus Communication State
Number Displayed by the LED
5
Communication status from strong to weak
Best
communication status
Communication
interrupted
A
B
C
DP
D
E
F
G
For example, if the LEDs are shown as the following figure, it indicates that the Modbus
communication of addresses 1, 5, 6, 7, 12, 15, 16, 18, 19, 21, 22, 23, 25, 26 and 27
are abnormal. The Modbus communication of other addresses is normal. The CANbus
communication state displayed by the LED is 3, indicating normal communication.
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