Interrupt, error, and system messages
4.4 Diagnostics with STEP 7
Interface module IM151-1 STANDARD (6ES7151-1AA06-0AB0)
Manual, 07/2015, A5E01075950-AD
43
67B
Station statuses 1 to 3
Definition
Station statuses 1 to 3 provide an overview of the status of a DP slave.
Structure of station status 1 (byte 0)
Table 4- 3 Structure of station status 1 (byte 0)
0 1: The DP slave cannot be accessed by the DP
master.
• Is the correct PROFIBUS address set on the DP slave?
• Is the bus connector plugged in?
• Is the DP slave connected to the voltage supply?
• Is the RS-485 repeater set correctly?
• Has the DP slave been reset?
1 1: The DP slave is not yet ready to exchange data.
• Wait, the DP slave is currently starting up.
2 1: The configuration data transferred from the DP
master to the DP slave does not match the slave
• Has the correct station type or the correct DP slave con-
figuration been entered in the configuration software?
3 1: External diagnostics information is pending.
(Group diagnostics display)
• Evaluate the ID-specific diagnostics information, the mod-
ule status, and/or the channel-specific diagnostics infor-
mation. As soon as all errors have been eliminated, bit 3
will be reset. The bit will be set again when there is a new
diagnostics message in the bytes of the aforementioned
diagnostics.
4 1: The required function is not supported by the DP
slave (for example, changing the PROFIBUS ad-
dress by means of software).
• Check the configuration.
5 1: The DP master cannot interpret the response of
• Check the bus configuration.
6 1: The DP slave type does not match the software
configuration.
• Has the correct station type been entered in the configura-
tion software?
7 1: Parameters have been assigned to the DP slave
by a different DP master (not the one that currently
has access to the DP slave).
• The bit is always 1, for example, if you access the DP
slave with the programming device or another DP master.
• The PROFIBUS address of the DP master that assigned
parameters to the DP slave is located in the "Master
PROFIBUS address" diagnostics byte.