YASKAWA
SIEP C730600 88F MECHATROLINK-III Technical Manual
25
Command
Code
(Hex.)
Contents
Communication Phases
1
2
3
SYNC_SET
0D
Start Synchronous Communication Command
-
○
△
CONNECT
0E
Establish Connection Command
○
△
△
DISCONNECT
0F
Release Connection Command
○
○
○
INV_CTL
50
Inverter Operation Control Command
-
○
○
○: Can be executed, Δ: Ignored,
–
: Cannot be executed (phase error)
Table 7.3 Sub-Command Communication Phases
Command
Code
(Hex.)
Contents
Communication Phases
1
2
3
NOP
00
No Operation Command
-
○
○
PRM_RD
01
Read Parameter Command
-
○
○
PRM_WR
02
Write Parameter Command
-
○
○
ALM_RD
05
Read Alarm and Warning Command
-
○
○
INV_IO
51
Inverter I/O Control Command
-
○
○
○: Can be executed,
–
: Cannot be executed (phase error)
◆
Application Layer Specifications
The data format for the application layer conforms to the MECHATROLINK-III command specifications for
standard inverter profile.
The SI-ET3 option uses the main commands and sub-commands in the following tables.
Table 7.4 Main Commands
Code
(Hex.)
Name
Function
00
NOP
No Operation Command
01
PRM_RD
Read Parameter Command
02
PRM_WR
Write Parameter Command
03
ID_RD
Read ID Number Command
04
CONFIG
RAM Write and EEPROM Write Command
05
ALM_RD
Read Alarm and Warning Command
06
ALM_CLR
Clear Alarm and Warning Command
0D
SYNC_SET
Start Synchronous Communication Command
0E
CONNECT
Connect Command
0F
DISCONNECT
Release Connection Command
50
INV_CTL
Inverter Operation Control Command
Table 7.5 Sub-Commands
Code
(Hex.)
Name
Function
00
NOP
No Operation Command
01
PRM_RD
Read Parameter Command
02
PRM_WR
Write Parameter Command
05
ALM_RD
Read Alarm and Warning Command
51
INV_I/O
Inverter I/O Control Command
Set
F6-21 = 0
to select 64-byte data transmission before you use sub-commands. If there is a conflict between a
request for a main command and a request for a sub-command, the drive will process the main command request.
If the drive is currently processing a main command or a sub-command, the drive gives priority to the command
being processed. The sub-command is given priority if an INV_CTL main command and an INV_I/O sub-
command conflict.