Yaskawa SI-ET3 - Manual (Page 32)

9 Main Command
32 YASKAWA ELECTRIC SIEP C730600 62B 1000-Series Option SI-ET3 Technical Manual
Table 16 ALM_DATA
‹ ALM_CLR: 06H (Clear Alarm or Warning Command)
The ALM_CLR command is used to clear the alarm or warning state. The command can be used in communication
phases 2 and 3.
This command changes the state of a slave station, it does not remove the cause of a fault. After the cause of the alarm or
warning has been removed, this command is then used to clear the status of the alarm or warning.
‹ SYNC_SET: 0DH (Start Synchronous Communication Command)
The SYNC_SET command is used to start synchronous communications. After this command is issued, synchronous
communications are carried out. If communications become asynchronous due to any fault such as a communications
fault, this command can be used to restore synchronous communications. The command can be used in communication
phases 2 and 3. Watchdog data error detection commences when this command has been completed.
21 – U3-07 (Upper) –
22 – U3-08 (Lower) –
23 – U3-08 (Upper) –
24 – U3-09 (Lower) –
25 – U3-09 (Upper) –
26 – U3-10 (Lower) –
27 – U3-10 (Upper) –
ALM_RD_MOD Description
0 Present fault (Byte 6), Fault history Byte 8 to 11 U2-01, U2-02
1 Alarm status list (Byte 8 to 27) U3-01 to U3-10
2 Fault history (Alarms are not saved in the history.) (Byte 8 to 9) U2-01, U3-01 to U3-10
ALM_RD Command
Byte Command Description
0 ALM_RD (06H) Command code
1 WDT Watchdog data
2
CMD_CTRL Refer to Command Control (CMD_CTRL) on page 24 .
3
4
ALM_CLR_MOD 0: Clears the status of present faults and alarms.
5
6
Reserved (0) Not used
7
x
x
31
ALM_RD Response
Byte Command Description
0 ALM_RD (06H) Command code
1 RWDT Watchdog data
2
CMD_STAT Refer to Command Status (CMD_STAT) on page 24 .
3
4
ALM_CLR_MOD The value set in the command
5
6
Reserved (0) Not used
7
x
x
31
Byte ALM_RD_MOD = 0 ALM_RD_MOD = 1 ALM_RD_MOD = 2