YASKAWA HV600 Technical Reference page 746

10.6 MEMOBUS/Modbus Communications
Table 10.26 shows example messages when you write to more than one holding register or when you read more than
one command register. Table 10.26
• The bypass for slave 1 is set for Forward run with a frequency reference of 60.00 Hz.
• The setting in H5-25 to H5-28 and the data in the specified holding registers are as follows.
– H5-25 = 0044H: U1-05 [Motor Speed] = 60.00 Hz (6000 = 1770H)
– H5-26 = 0045H: U1-06 [Output Voltage Ref] = 200.0 V (2000 = 07D0H)
– H5-27 = 0042H: U1-03 [Output Current] = 50% of rated current (100% = 8192, 50% = 4096 = 1000H)
– H5-28 = 0049H: U1-10 [Input Terminal Status] = 00H
If parameter values are changed using the Write command, an Enter command is necessary to activate and save the
data. Refer to H5-11: Comm ENTER Command Mode on page 309
information.
Table 10.26 Message Example When Reading from More than One Holding Register/Reading the Indicated Register
Command Message
Byte
0 Slave address
1 Function Code
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
746
uses this register data for the examples:
Response Message (when normal)
Setting Data
(Hex.)
01
5A
00
Data in holding
01
register 1
selected with H5-
00
25
Data in holding
02
register 2
selected with H5-
04
26
Data in holding
00
register 3
selected with H5-
01
27
Data in holding
17
register 4
selected with H5-
70
28
4F
Starting No.
43
-
Data Qty
-
-
CRC-16
-
and Enter Command on page 748
Setting Data
(Hex.)
01
Slave address
5A
Function Code
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
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
for more
Response Message (when there is a fault)
Slave address
Function Code
Register status
Data in holding
Upper
register 1
selected with H5-
Lower
25
Data in holding
Upper
register 2
selected with H5-
Lower
26
Data in holding
Upper
register 3
selected with H5-
Lower
27
Data in holding
Upper
register 4
selected with H5-
Lower
28
Error Codes
Upper
CRC-16
Lower
-
-
-
Setting Data
(Hex.)
01
DA
0F
17
70
07
D0
10
00
00
00
02
E9
6C