Enter Command - YASKAWA GA700 Series Technical Manual

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
Comm ENTER Command Mode on page 862
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
10 Upper
Holding register
1 data
11 Lower
12 Upper
Holding register
2 No.
13 Lower
14 Upper
Holding register
2 data
15 Lower
16 Upper
CRC-16
17 Lower
Note:
The number of bytes set in the command message set the data quantity × 2 during the command message.
◆

Enter Command

When you use MEMOBUS/Modbus communications to write parameters from the PLC to the drive, H5-11
[Comm ENTER Command Mode] lets you use the Enter command to enable these parameters. This section gives
information about the Enter command.
■
Types of Enter Commands
The drive supports the two Enter commands shown in
Write 0 to register number 0900 or 0910 (Hex.) to enable the Enter command. You can only write to these
registers. If you read to these registers, it will cause an error.
Register No.
(Hex.)
When you write parameter data to the EEPROM, you will enable the data on the RAM at the same time.
0900
This process saves the parameter changes even if you de-energize the drive.
This updates the data on the RAM, but does not write data to the EEPROM.
0910
If you de-energize the drive, you will lose the parameter changes.
YASKAWA SIEPC71061705H GA700 Series Technical Manual
and Enter Command on page 287
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
17
70
00
04
05
DC
55
59
Table
Table 6.13 Types of Enter Commands
6.3 MEMOBUS/Modbus Communications
for more information.
Response Message (when there is a fault)
Setting Data
(Hex.)
01
67
Upper 01
Lower 0E
CRC-16
Upper 00
Lower 02
Upper D5
Lower FC
-
-
-
-
-
-
-
-
-
-
6.13.
Description
H5-11:
Setting Data
(Hex.)
Slave address 01
Function Code E7
Error Codes 02
Upper EA
Lower 31
-
-
-
-
-
-
-
-
-
-
-
-
-
287
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