User manual

905U-G Wireless Gateway User Manual
Page 109 ©September 2004
Alarm Confirmation
FB_ABM_MSAL1_ALARM_CON: Command Number = 0023h
This message indicates that a slave has confirmed a previous MSAC1_Alarm_Ack, see
“Alarm Indication (MSAL1_ALARM_IND)” above. This message is sent spontaneously by
the 905G, i.e. the module itself initiates the message instruction in the “Spontaneous Message
OUT Area” (see “Message Interface Addressing” above).
Note: This message must not be responded to!
Message layout:
Command Response
Message ID
(ID) (no response)
Message Information
4002h
Command Number
0023h
Data Size
0000h
Extended Word 1
Slave Add Slot No
Extended Word 2
Seq Number
Alarm Spec
Ack
Extended Word 3
Alarm Type Ext Diag
Extended Word 4
-
Extended Word 5
- Error Decode
Extended Word 6
Err Code1 Err Code2
Extended Word 7
Return Code
Extended Word 8
Fault Information
• Slave Address
Station address of the slave that indicates the alarm
• Slot Number
Used by the slave to indicate the source of the alarm
Range 0 -254
• Seq Number
Unique identification number of the alarm
Range 0 –31
• Alarm Spec Ack
Gives additional information about the Alarm, such as an error appears, or disappears. It
also indicates whether the slave needs additional acknowledge from the Master
(Example:Writing to a certain memory area with an Acyclic Write request)