Delta VFD-ED Series User Manual

Appendix B. Modbus ProtocolVFD-ED
B-8
B-4 Address List
1. ASCII
 Reads one or more parameter values: 3Ah (start bit‘：’) + 30h 31h (station address 01) + 30h
33h (function code 03h) + 30h 30h xxh xxh–32h 36h xxh xxh (Modbus address 00xxh–26xxh)
+ xxh xxh xxh xxh (reading length 1) + LRC (checksum) + CR/LF
 Writes one parameter value: 3Ah (start bit‘：’) + 30h 31h (station address 01) + 30h 36h
(function code 06h) + 30h 30h xxh xxh–32h 36h xxh xxh (Modbus address 00xxh–26xxh) +
xxh xxh xxh xxh (writing value) + LRC (checksum) + CR/LF
 Writes 20 parameter values: 3Ah (start bit‘：’) + 30h 31h (station address 01) + 31h 30h
(function code 10h) + 30h 30h xxh xxh–32h 36h xxh xxh (Modbus address 00xxh–26xxh) +
30h 30h 31h 34h (word data length) + 32h 38h (byte data length) + xxh xxh xxh xxh (the first
writing value) + ... + xxh xxh xxh xxh (the 20th writing value) + LRC (checksum) + CR/LF
2. RTU
 Reads one or more parameter values: 01h (station address 01) + 03h (function code 03h) +
00xxh–26xxh (Modbus address) + xxxxh (reading length) + CRC (checksum)
 Writes one parameter value: 01h (station address 01) + 06h (function code 06h) + 00xxh–
26xxh (Modbus address) + xxxxh (writing value) + CRC (checksum)
 Writes 20 parameter values: 01h (station address 01) + 10h (function code 10h) + 00xxh–
26xxh (Modbus address) + 0014h (data length, count by word) + 28h (data length, count by
byte) + xxxxh (the first writing value) + ... + xxxxh (the 20th writing value) + CRC (checksum)
3. AC motor drive parameters (GGnnH): communication station address is Pr.09-00 setting value
Modbus
Address
Attribute (Function Code) Description
GGnnH R(03H) / W(06H, 10H)
GG means parameter group, nn means parameter number. For
example, the Modbus address of Pr.04-10 is 040AH when
reading by Delta VFDsoft.
4. Control command (20xx): communication station address is Pr.09-00 setting value
Function
Name
Modbus
Address
Attribute
(Function
Code)
Size Description
Operation
command
2000H
R (03H) /
W (06H,
10H)
U16 bit1–0
00B: No function
1. Remains the status
specified by a first
command until a
second command is
received.
2. Valid only when
operation command
source is set to
communication
(Pr.00-15=2).
01B: Stop
10B: Run
11B: JOG + Run
U16
bit3–2
Reserved
bit5–4
00B: No function
01B: FWD
10B: REV
11B: Change direction
bit7–6
00B: 1st accel. / decel.
1. Valid only when 2000h
bit12 is set to 1.
2. Obtain the current
running speed by
01B: 2nd accel. / decel.
10B: 3rd accel. / decel.
11B: 4th accel. / decel.

Delta VFD-ED Series Specifications

General

Brand	Delta
Model	VFD-ED Series
Category	DC Drives
Language	English