YASKAWA SVC User Manual page 592

Clear Alarms/Warnings Command
Clears an alarm or warning from the I/O Module.
 Command Format
Output Registers
7 6 5 4 3 2 1 0
OW Clear Alarms/Warnings (= 2)
OW + 1
Command Control
OW + 2
OW + 3
OW + 4
OW + 5
OW + 6
OW + 7
 ALM_CLR_MOD: Clear Alarm Mode
0: Clears the current alarm or warning.
1: Clears the alarm history.
All other bits: Reserved for system.
 Execution and Operating Procedure
1.
Make sure that the following condition is met.
No. Execution Condition
I/O command execution must be com-
1
pleted.
2.
Set the I/O Command register to 2 to execute the Clear Alarms/Warnings command.
 Confirming Completion of the Command
Use the following information to confirm that the command has been completed.
No.
1 I/O Command Response register = 2 (Clear Alarms/Warnings)
2 Command Status bit 2 (CMDRDY) = 1
3 ALM_CLR_MOD is the same in the command and response.
1. If the command is not completed within 5 seconds after it is executed, bit 0 in the Master Sta-
tus register changes to 1 (TIMEOUT).
2. When bit 0 (D_ALM) or bit 1 (D_WAR) in the Command Status register is 1, check the error
Important
details with the application and perform the stop processing. The system will not perform stop
processing.
Not used.
ALM_CLR_MOD
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Confirmation Method
11.3 MECHATROLINK-III I/O Module Settings
11.3.4 I/O Command Details
Input Registers
7 6 5 4 3 2 1 0
IW Clear Alarms/Warnings (= 2)
Master Status
IW + 1
Command Status
IW + 2
ALM_CLR_MOD
IW + 3
IW + 4
IW + 5
IW + 6
IW + 7
Confirmation Method
Command Status bit 2 (CMDRDY) = 1
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