8 Servo Drive Management
8.3.2 Reading Maintenance Information (Read ID Command)
8-12
8.3.2
Reading Maintenance Information (Read ID Command)
Use the Read ID (ID_RD: 03 hex) command to read the maintenance information.
The ID_RD (03 hex) command can be executed only as the main command.
If the size of the data to read is 24 bytes or less, set the OFFSET to 0 and the SIZE to the data size to read the
data in a single read operation. If the data size is greater than 24 bytes, use the OFFSET and SIZE settings to
perform multiple read operations and read all the maintenance information.
Refer to
9.2.1 ID Information Area
in the
Σ
-V-SD AC Servo Drives
Σ
-V-SD Series User’s Manual MECHA-
TROLINK-III Standard Servo Profile Commands
(Manual No.: SIEP S800000 76) for details on maintenance
information.
Usable Phase
2, 3
SERVOPACK Software Version Example
ID_CODE=03 hex
OFFSET=0
SIZE=4
SERVOPACK Model Example
Because the data length is 32 bytes, the read must be
divided up into two operations: one of 24 bytes and one of
8 bytes.
First Read
ID_CODE=80 hex
OFFSET=0 hex
SIZE=18 hex
Second Read
ID_CODE=80 hex
OFFSET=18 hex
SIZE=8 hex
Processing Time
Within the commu-
nications cycle
Byte
ID_RD
Command
Response
0
03 hex
03 hex
1
WDT
RWDT
2
CMD_CTRL
CMD_STAT
3
4
ID_CODE
ID_CODE
5
OFFSET
OFFSET
6
SIZE
SIZE
7
8
Reserved.
ID
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31