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PROFIBUS-DP Master Unit
Item
Reading Slave station diagnostics
Reading and controlling the error log
Station state changes
Error history size and storage
Protocol Specification
Item
Applicable standards
Protocol type supported
PROFIBUS Unit types
PROFIBUS Media type
PROFIBUS Connector
Unit station address range
Number of slave stations supported
baud rates supported
Bus timing definitions
Master Class 1 - Slave cyclic services
Master Class 1 - Slave acyclic services
Master Class 1 - Slave services
available to the PLC
Master - Master services
12
The MEMORY AREA READ (0101) FINS command can be used to
obtain the last received Slave Diagnostics message.
The internal error log records the history of error events. The Unit
supports the following Error Log related FINS commands:
• ERROR LOG READ
• ERROR LOG CLEAR
Allocated Slave stations can be disabled and enabled in order to
temporarily remove them from data exchange services. The internal
error log records the history of error events. The Unit supports the
following FINS commands to implement this:
• RUN
• STOP
The PROFIBUS Master unit supports storage of up to 80 error
events, including time stamps in volatile memory.
16 error events can be logged in non-volatile memory
EN50170, Volume 2
PROFIBUS-DP
PROFIBUS-DP Class 1 Master
RS-485, galvanically isolated from the PLC
9-pin sub-D female connector (#4/40 UNC thread)
Termination to be provided by the cable connector according to
EN50170
0
~ 125, set through Configurator
0
125 max, address range
Selectable through Configurator:
• 9.6 kbit/s
• 19.2 kbit/s
• 45.45 kbit/s
• 93.75 kbit/s
• 187 kbit/s
• 500 kbit/s
• 1.5 Mbit/s
• 3 Mbit/s
• 6 Mbit/s
• 12 Mbit/s
Calculated by Configurator
• Set_Prm
• Chk_Cfg
• Data_Exchange
• Slave_Diag
• Global_Control - CLEAR
Not supported
Global_Control, initiated from CIO Word:
Can be addressed to all slave stations or a specified group of
slaves stations
Supported commands:
• SYNC
• UNSYNC
• FREEZE
• UNFREEZE
Not supported
Section 1-3
Specification
Specification
~ 125
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