YASKAWA HV600 Technical Reference page 747

Note:
The number of bytes set in the command message set the data quantity × 2 during the command message.
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 bypass 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 10.27 shows example messages when you read the frequency reference and torque limit from the bypass for
slave 1. Table 10.27 uses these specified holding registers data for the examples.
• 0040H: U1-01 [Frequency Reference] = 60.00 Hz (6000 = 1770H)
• 0046H: U1-07 [DC Bus Voltage] = 635 VDC (635 = 027BH)
Table 10.27 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.
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
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
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 40
Upper 00
Holding register
2 data
Lower 46
Upper 4B
CRC-16
Lower 1A
10.6 MEMOBUS/Modbus Communications
Register status
Setting Data
(Hex.)
Slave address 01
Function Code 67
Upper 01
Lower 0D
Upper 00
Lower 04
Upper 17
Lower 70
Upper 02
Lower 7B
Upper 06
Lower 10
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
10
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