User`s manual
GFK-2334A Chapter 5 PROFIBUS Master Status and Diagnostics 5-25
5
(Word 9) Local PLC - Memory Starting Address: Word 9 is a 0-based offset that
determines the starting address in the local PLC in which the response is to be written.
The value entered is the offset (0-based) from the beginning of PLC memory for the
memory type and mode specified in Word 8. This offset will be either in bits, bytes, or
words depending on the mode specified (for example, if Word 8=16 and Word 9=2, then
the starting address will be %I17). Valid ranges of values depend on the PLC’s memory
ranges.
(Word 10) Size of Response: Always 12.
(Word 12 and 13) Slot and Sequence Number: Slot and Sequence Number depend on
the specific slave device. Please refer to the user documentation of that slave for further
details.
(Word 14 and 15) Alarm Type and Spec: Alarm Type and Spec depend on the specific
slave device. Please refer to the user documentation of that slave for further details.
DP-V1 Alarm Request Response Data Format –
Response written to location specified by Words 8 & 9
Word Name Description
1 Command Code Echo of the Command Code = 9
2 Slave Address Echo of Slave address from command
3 Slot Number Echo of Slot number from command
4 Sequence
Number
Echo of Index from command
5 Alarm TYPE Actual length of received data
6 Alarm Specifier Additional information related to the alarm. See “DPV1 Alarm Specifier
Codes” below.
7 Return Status See “DPV1 Alarm Return Status Error Codes.”
DPV1 Alarm Specifier Codes
Code Indication
00 No additional information
01 Error present and slot is not okay
10 Error resolved and slot is okay
11 Error resolved but slot is still not okay
DPV1 Alarm Return Status Error Codes
The tables below show the possible return messages contained in the Return Status word
of the DPV1 Alarm Response.
Code Name Indication
134 REJ_INT The alarm handler is not initialized.
135 REJ_SRT The alarm handler is not initialized.
136 REJ_ENA The alarm that has been acknowledged is not pending. It is possible that you
have entered an incorrect Slot ID or Sequence number.
137 REJ_NPD
The alarm that has been acknowledged is not pending on a MSAL1_Alarm_Res
.
154 REJ_COM Unknown command.










