6-8
Note:
Write a zero into the register for an unused bit; do not write data to a reserved register.
6.1.7 Read holding Register [03H]
Read consecutive holding registers. The address of the first holding register is specified in the protocol
Example
: Read frequency command from the AC Drive with node address 1.
ASCII Mode
3AH
STX
30H
Node Address
31H
30H
Function
33H
30H
Starting Register
31H
32H
33H
30H
Number of
Registers
30H
30H
31H
?
LRC CHECK
?
0DH
END
0AH
Register No.
Value
Content
Value
Content
Value
Content
Value
2528H (409513)
16
EF0
36
SE03
56
BB8
76
17
EF1
37
Reserved
57
Reserved
18
EF2
38
SE05
58
Reserved
19
EF3
39
HPERR
59
Reserved
2529H (409514)
Digital Output State
252AH (409515)
AO1 (0.00V – 10.00V)
252BH (406516)
Reserved
252CH (409517)
AI 1 Input (0.1%)
252DH (409518)
AI 2 Input (0.1%)
252EH (409519)
Reserved
252FH (409520)
L510(s)/ E510(s)/ A510(s)/ F510 Check
Command Message
3AH
STX
30H
Node Address
31H
30H
Function
33H
30H
Data Length
32H
31H
Data
37H
37H
30H
?
LRC CHECK
?
0DH
END
0AH
3AH
STX
30H
Node Address
32H
38H
Function
33H
35H
Exception code
32H
?
LRC CHECK
?
0DH
END
0AH
Response Message (Norm.)
Response Message (Error)