YASKAWA GA700 Technical Manual page 300

5.3 MEMOBUS/Modbus Communications
Command Message
Byte
2 Upper
Starting No.
3 Lower
4 Upper
Data Qty
5 Lower
6 Byte No.
7 Upper
First data
8 Lower
9 Upper
Next data
10 Lower
11 Upper
CRC-16
12 Lower
13
14
15
16
Note:
The number of bytes set in the command message set the data quantity × 2 during the command message. The response message uses
the same formula.
Register status
bit 0
bit 1
bit 2
bit 3
bit 4
bit 5
bit 6
bit 7
■
Reading the Contents of Non-Consecutive Holding Registers
The drive uses function code 67 (Hex.) and subfunction code 010D (Hex.) to read data with a maximum of 120
holding registers.
You must give the holding register number from which to read separately.
Table 5.7 shows example messages when you read the frequency reference and torque limit from the drive for
slave 1. Table 5.7 uses these specified holding registers data for the examples.
• 0024H:U1-01 [Frequency Reference] = 60.00 Hz (6000 = 1770H)
300
Response Message (when Normal) Response Message (when There is
Setting
Data
(Hex.)
00
Data in
01
holding
register 1
00
selected with
H5-25
Data in
02
holding
register 2
04
selected with
H5-26
Data in
00
holding
register 3
01
selected with
H5-27
Data in
17
holding
register 4
70
selected with
H5-28
4F
Starting No.
43
-
Data Qty
-
-
CRC-16
-
Data in register 1 selected with H5-25
1: Successfully read the register, 0: Register read error
Data in register 2 selected with H5-26
1: Successfully read the register, 0: Register read error
Data in register 3 selected with H5-27
1: Successfully read the register, 0: Register read error
Data in register 4 selected with H5-28
1: Successfully read the register, 0: Register read error
Not used
Not used
Not used
Not used
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Setting
Data
(Hex.)
Register status 0F
Upper 17
Lower 70
Upper 07
Lower D0
Upper 10
Lower 00
Upper 00
Lower 00
Upper 00
Lower 01
Upper 00
Lower 02
Upper AC
Lower D0
a Fault)
Register status
Data in
Upper
holding
register 1
Lower
selected with
H5-25
Data in
Upper
holding
register 2
Lower
selected with
H5-26
Data in
Upper
holding
register 3
Lower
selected with
H5-27
Data in
Upper
holding
register 4
Lower
selected with
H5-28
Error code
Upper
CRC-16
Lower
-
-
-
Setting
Data
(Hex.)
0F
17
70
07
D0
10
00
00
00
02
E9
6C