4.3 CPU Unit Specifications
System Register Specifications
4-65
Alarm History Information
The data in these registers provide alarm history information for the system registers.
Register Configuration
Details
The registers for the alarm history entries are structured as shown below. This example shows the system
register addresses for alarm history entry 1.
Group 4 Record No. SL16006 Latest record number in group 4.
Reserved for system. SL16008 Reserved for system.
Reserved for system. SL16010 Reserved for system.
Name Register Address Remarks
Current Alarm SW16200 Cleared when the power is turned ON.
Alarm History Entries SW16201 Alarm history entries
Alarm Clear SW16202
1: Alarm cleared
2: Current alarm and history cleared
Alarm History
SW16203 to SW16218
Alarm History
Entry 1
Refer to the following section for
details.
Details (page 4-65)
SW16219 to SW16234
Alarm History
Entry 2
SW17787 to SW17802
Alarm History
Entry 100
Reserved for system. SW17803 to SW17999 −
Register Address Remarks
Register Address
Example
SW + 0 SW16203
SW + 1 Alarm Code SW16204
SW + 2
Alarm Detail Format
1: Operation error
2: I/O error
3: Other error
SW16205
SW + 3 Year when alarm occurred SW16206
SW + 4 Month when alarm occurred SW16207
Continued on next page.
Continued from previous page.
Name Register Addresses Remarks
01 to 09: Gives the slot number where the
Module in which the alarm occurred
is mounted.
1 to 4: Gives the unit number of the Module in
which the alarm occurred is mounted.
1 to 7: Gives the Rack number where the Mod-
ule in which the alarm occurred is
mounted.