ProSoft Technology MVI56-PDPMV1 - Manual (Page 166)

Mailbox Messaging MVI56-PDPMV1 ♦ ControlLogix Platform
User Manual PROFIBUS DPV1 Master
Page 166 of 255 ProSoft Technology, Inc.
March 22, 2011
Detailed information about the cause of the alarm is presented in extended words
1 to 3 and in the message data field (see below).
Command and Response Layout: Alarm Indication
Command Response
Message ID (ID) (ID)
Message information 4002h 0002h
Command 0022h 0022h Alarm Indication
Data size (request length) 0000h
Frame count 0001h 0001h
Frame number 0001h 0001h
Offset high 0000h 0000h
Offset low 0000h 0000h
Extended word 1 Slave
Address
Slot Number -
Extended word 2 Seq Number Alarm Spec
Ack
-
Extended word 3 Alarm Type Ext Diag -
Extended word 4 - -
Extended word 5 - -
Extended word 6 - -
Extended word 7 - -
Extended word 8 Fault Information -
Message Data byte 1 Data 1
Message Data byte 2 Data 2
Message Data byte 3 Data 3
… …
Message Data byte n Data n
Slave Address
Station address of the slave that issued the alarm.
Slot Number
Used by the slave to indicate the source of the alarm. Range 0 to 254.