Horner APG SmartStack I/O HE800PBS600/HEPBS600 - Manual (Page 62)

CH9: Diagnostics
MAN0575-04-EN
PAGE 62 of 97
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Profibus Modules User Manual
EO 09-0009
Station-
Status 1 Set by Meaning and Remedy
Station Not
Ready
(Bit 1) Slave Meaning: The DP Slave is still not ready for the data exchange.
Remedy: When or at which event the Slave sets this bit is not defined in the specification.
That means it can have several Slave specific reasons. Usually the bit is set in
combination with one of the other fault bits.
Check the parameter and the configuration. Often the report 'Station not Ready' results in
the case of a parameter fault or configuration fault.
It is possible that the supply voltage at the Slave was just first switched on. Wait until the
device is initialised.
Station not
existent
(Bit 0) Master Meaning: This bit is set by the Master automatically, if this Slave does not answer or is not
reachable on the bus.
Remedy: Check the PROFIBUS cable. Both signal wires need to be connected correctly
between all devices. In addition, the connectors at the end of the cable need to be
provided with termination resistors.
Check that the device is connected to the bus cable.
Check the power supply at the Slave device.
Compare the station address at the Slave with the configuration of the Master. With the
menu Online > Live List, check which Slaves are available to the PROFIBUS.
Check, if the Slave supports the configured baud rate. Some Slaves only work up to 1.5
Mbaud or need to be set for PROFIBUS-DP conform behaviour.
Table 11: PROFIBUS-DP Diagnostic Station state 1 (Bit 7 to 0)