Weidmuller WI-GTWY-9 User Manual page 115

WI-GTWY-9-xxx Wireless Gateway
Alarm Indication
MSAL1_ALARM_IND: Command Number = 0022h
This message indicates that a DPV1 slave has transferred an Alarm message to the master. This
message is sent spontaneously by the WI-GTWY-9-xxx, i.e. the module itself initiates the
message instruction in the "Spontaneous Message OUT Area" (see "Message Interface
Addressing" above).
Detailed information about the alarm cause is presented in extended words 1-3 and the message
data field, see below.
The WI-GTWY-9-xxx may be configured to automatically provide a response to this command
(default), or the response may be provided externally via the message interface. The response will
trigger the module to send an MSAC1_Alarm_Ack to the slave. This will tell the slave that the
master has configured the alarm. The slave will in turn respond with a confirmation message, see
"Alarm Confirmation (MSAL1_ALARM_CON)" below.
Command and response layout:
Message ID
Message Information
Command Number
Data Size
Extended Word 1
Extended Word 2
Extended Word 3
Extended Word 4
Extended Word 5
Extended Word 6
Extended Word 7
Extended Word 8
Message data byte 1
Message data byte n
• Slave Address
Station address of the slave that indicates the alarm
• Slot Number
Used by the slave to indicate the source of the alarm.
Command
(ID)
4002h
0022h
(request length)
Slave Add Slot No
Alarm Spec
Seq Number
Ack
Alarm Type Ext Diag
-
-
-
-
Fault Information
Data 1
::: :::
Data n
Response
(ID)
0002h
0022h
0000h
-
-
-
-
-
-
-
-
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