Application layer specifications – Yaskawa SI-ET3 User Manual
Page 23
7 Transmission Interface
YASKAWA ELECTRIC SIEP C730600 62B 1000-Series Option SI-ET3 Technical Manual
23
Application Layer Specifications
The data format for the application layer conforms to the MECHATROLINK-III command specifications for standard
inverter profile.
SI-ET3 has the following main commands and sub-commands.
Table 10 Main Commands
Table 11 Sub-Commands
The sub-commands can be used only when the 64-byte data transmission (F6-21 = 0) has been selected. If a conflict
occurs between a request for a main command and a request for a sub-command, the request for the main command is
processed. If either a main command or a sub-command is already being processed, the command being processed is
given priority. If an INV_CTL main command and an INV_I/O sub-command conflict, the sub-command is given
priority.
For details on command formats, refer to
MECHATROLINK-III Commands on page 24
.
shows the combination of main commands and sub-commands.
Table 12 Main Commands and Sub-Commands
Note: CMD_ALM = BH (sub-command combination error) will result if a main command and sub-command conflict with one
another.
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 Communications Command
0E
CONNECT
Connect Command
0F
DISCONNECT
Disconnect Command
50
INV_CTL
Inverter Operation Control Command
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
Code
[HEX]
Main Command
Sub-Command
NOP (00H)
PRM_RD (01H) PRM_WR (02H) ALM_RD (05H) INV_I/O (51H)
00
NOP
OK
OK
OK
OK
OK
01
PRM_RD
OK
–
–
OK
OK
02
PRM_WR
OK
–
–
OK
OK
03
ID_RD
OK
OK
OK
OK
OK
04
CONFIG
OK
–
–
–
–
05
ALM_RD
OK
–
–
–
–
06
ALM_CLR
OK
–
–
–
–
0D
SYNC_SET
OK
OK
OK
OK
OK
0E
CONNECT
OK
–
–
–
–
0F
DISCONNECT
OK
–
–
–
–
50
INV_CTL
OK
OK
OK
OK
OK