Yaskawa SI-ET3 - Manual (Page 41)

10 Sub-Commands
YASKAWA ELECTRIC SIEP C730600 62B 1000-Series Option SI-ET3 Technical Manual 41
must be sent to force the parameters to become effective. Refer to the drive instruction manual for details of
MEMOBUS/Modbus register numbers.
In the following statuses, an alarm is detected and the command goes into error.
„ ALM_RD: 05H (Read Alarm or Warning Command)
The ALM_RD command is used to read the alarm or warning state. The command can be used in communication phases
2 and 3.
The current alarm or warning state is read to ALM_DATA as an alarm or warning code. Refer to the drive instruction
manual for details about ALM_DATA.
PRM_RDA Command
Byte Command Description
32 PRM_WR (02H) Command code
33
SUB_CTRL Refer to SUB_CTRL (Sub-Command Control Field) on page 39 . 34
35
36
NO
MEMOBUS/Modbus register number (Lower)
37 MEMOBUS/Modbus register number (Upper)
38 SIZE Specify the parameter data size in bytes. 2, 4, 6, and 8 are available.
39 Reserved (0) Not used
40
PARAMETER Specify the lower byte (LSB) before the upper byte (MSB) in the size set in the SIZE.
41
42
x
x
63
PRM_WR Response
Byte Response Description
32 PRM_WR (02H) Command code
33
SUB_STAT Refer to SUB_STAT (Sub-Command Status) on page 39 . 34
35
36
NO
The value (Lower) set in the command.
37 The value (Upper) set in the command.
38 SIZE The value set in the command.
39 Reserved (0) 0 is set.
40
PARAMETER
The value set in the command.
0 is stored when the field is not used.
41
42
x
x
63
Error Response
Register Number Error “9” is set for SUBCMD_ALM.
Bit Count Error “9” is set for SUBCMD_ALM.
Data Setting Error “9” is set for SUBCMD_ALM.
Write Mode Error “9” is set for SUBCMD_ALM.
Writing Error during Under Voltage “9” is set for SUBCMD_ALM.
Writing Error during Parameter Processing “9” is set for SUBCMD_ALM.