Contents
PS69-DPM ♦ CompactLogix or MicroLogix Platform
User Manual
PROFIBUS DPV1 Master
Page 66 of 130
ProSoft Technology, Inc.
October 1, 2014
Code
Indication
Source
Corrective Action
18
Master not in Logical Token Ring
Master
Check FDL-Address of master or highest-
station-address of other master systems.
Examine bus cabling for bus short circuits.
21
Faulty Parameter in Request
Master Telegram
Master has a firmware issue.
Slave Diagnostics Field
The Slave Diagnostics array is an array of 8 bytes which includes slave diagnostic
information based on the settings used to execute this command. The definition of this array
and its indications are shown in the Following table.
Note:
The same Slave Diagnostic function can also be executed by CIP message functionality described later in
this manual. Some types of the CompactLogix controller family do not support messaging. This method below
can be used for controllers that only support I/O or I/O and CIP messaging. The slave diagnostic via I/O has the
limitation that it cannot show extended diagnostic information, if a slave supports this. It can only give the
mandatory diagnostic information of a slave. Extended diagnostic information can be received with the CIP
message functionality only.
Byte Offset
Structure member
Data Type
Description
72
Slave Address
SINT
Address of Slave with the Diagnostic request
73
Slave Diag Failure
SINT
See Definition Below
74
Station Status_1
SINT
See Definition Below
75
Station Status_2
SINT
See Definition Below
76
Station Status_3
SINT
See Definition Below
77
Master Address
SINT
This byte contains the master address of the PROFIBUS-
DP master which has done the parameterization of the
slave. If a slave is not parameterized the value is 255
78 to 79
Ident Number
INT
PROFIBUS Ident number from Slave in which the
diagnostic request was made
Slave Diag Failure
This byte reflects the status of the DDLM_DIAG request. See table below for possible error
codes.
Error Code
Significance
Error source
Help
0
Service could be executed
without an error
No error
-
17
No response from the station
SLAVE
Check network wiring, check bus address of
slave or baud rate support
18
Master not into the logical
token ring
Network in general
Check master DP-Address or highest-station-
address of the Master. Examine bus wiring for
bus short circuits
161
Remote Address in request
service out of range
APPLICA-TION
Check address parameter in diag request
