
2.PROFIBUS-DP SLAVE FUNCTIONS SETTING B-63994EN/02
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Status register
To monitor communication status with a ladder program, use the
status register described below. This status register is set at R9094 in
the PMC area.
The status register is shared by all paths.
Item Description
STATUS REGISTER
(Address : R9094)
(Size : 1 byte)
Bit 7 : Set when a PROFIBUS-DP slave board
is absent.
Bit 6 : Set when communication is not
established even once.
Bit 5 : Not used
Bit 4 : Not used
Bit 3 : Set when the problem of impossibility in
restoring the PROFIBUS-DP slave
board is detected.
Bit 2 : Set when a disconnection is detected
after communication is once
established.
Bit 1 : Set when a slave parameter (parameter
data or configuration data) is invalid.
Bit 0 : Set when a slave parameter (parameter
data or configuration data) is invalid.