YASKAWA GA800 Technical Reference page 323

Table 6.11 Message Example When Reading the Contents of Non-Consecutive Holding Registers
Command Message
Byte
0 Slave address
1 Function Code
2
Subfunction
Code
3
4
Data Qty
5
6
Holding register
1 No.
7
8
Holding register
2 No.
9
10
CRC-16
11
Note:
The number of bytes set within the response message sets twice the number of data contained in the command message.
■
Writing to Non-Consecutive Holding Registers
The drive uses function code 67 (Hex.) and subfunction code 010E (Hex.) to read data with a maximum of 60 holding
registers.
You must give the holding register number from which to write separately.
Table 6.12 shows example messages when you write the frequency reference and torque limit from the drive for slave
1. Table 6.12 uses these specified holding registers data for the examples.
• 0002H: Frequency Reference = 60.00 Hz (6000 = 1770H)
• 0004H: Torque Limit = 150.0% (1500 = 05DCH)
When you rewrite the parameter value with the write command through the H5-11 [Comm ENTER Command Mode]
setting, you must use the Enter command to save and enable the contents of the changes. Refer to
ENTER Command Mode on page 948
Table 6.12 Message Example When Writing to Non-Consecutive Holding Registers
Command Message
Byte
0 Slave address
1 Function Code
2 Upper
Subfunction
Code
3 Lower
4 Upper
Data Qty
5 Lower
6 Upper
Byte No.
7 Lower
8 Upper
Holding register
1 No.
9 Lower
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
Response Message (when normal)
Setting Data
(Hex.)
01
67
Upper 01
Subfunction
Code
Lower 0D
Upper 00
Byte No.
Lower 02
Upper 00
Holding register
1 data
Lower 24
Upper 00
Holding register
2 data
Lower 28
Upper 8B
CRC-16
Lower 29
and Enter Command on page 324
Response Message (when normal)
Setting Data
(Hex.)
01 Slave address
67 Function Code
01
Subfunction
Code
0E
00
Data Qty
02
00
CRC-16
04
00
02
6.3 MEMOBUS/Modbus Communications
Setting Data
(Hex.)
Slave address 01
Function Code 67
Upper 01
Lower 0D
Upper 00
Lower 04
Upper 17
Lower 70
Upper 03
Lower E8
Upper 47
Lower ED
for more information.
Setting Data
(Hex.)
01
67
Upper 01
Lower 0E
Upper 00
Lower 02
Upper D5
Lower FC
-
-
Response Message (when there is a fault)
Setting Data
(Hex.)
Slave address
Function Code
Error Codes
Upper
CRC-16
Lower
-
-
-
-
-
-
-
H5-11: Comm
Response Message (when there is a fault)
Setting Data
(Hex.)
Slave address
Function Code
Error Codes
Upper
CRC-16
Lower
-
-
-
-
-
01
E7
02
EA
31
6
01
E7
02
EA
31
323