Mitsubishi Electric FX5-DP-M User Manual page 147

■Status 1 and status 2 information
The status 1 and status 2 information is stored diagnostic information generated in a DP-Slave and relevant bits turned on.
The following table shows the description of each bit, actions to take, and stations to detect diagnostic information.
Item Bit Description
Status 1 b8 Data exchange with a DP-Slave failed.
b9 A DP-Slave is not ready for data
exchange.
b10 The I/O bytes parameter received from the
DP-Master does not match that of a DP-
Slave.
b11 Extended diagnostic information exists.
b12 The function requested by the DP-Master
is not supported.
b13 An invalid response from a DP-Slave.
b14 An invalid parameter from the DP-Master.
b15 The station is controlled by another DP-
Master.
Status 2 b0 Parameter send request from DP-Slaves
b1 A malfunction occurred in the DP-Slave.
b2 Not used
b3 A DP-Slave is monitoring their watchdog
timer.
b4 Not used
b5 Not used
b6 Not used
b7 A parameter setting excluded the station
from data exchange.
Action
Check the status of the DP-Slave and PROFIBUS line.
Check the relevant parameters.
■When data exchange starts
The station is in normal operation. (This bit turns on every time
when data exchange starts.)
■When data are being exchanged.
Check the status of the DP-Slave and PROFIBUS line.
Check the relevant parameters of the DP-Slave.
Check the status of the DP-Slave.
Check that the DP-Slave supports the global control function.
Check the specifications of the DP-Slave.
Check the status of the DP-Slave or that of the network.
Check the relevant parameters.
Check that multiple DP-Masters are communicating with the same
DP-Slave.
Check the relevant parameters.
■When data exchange starts
The station is in normal operation. (This bit turns on every time
when data exchange starts.)
■When data are being exchanged.
Check the status of the DP-Slave and PROFIBUS line.
Check the status of the DP-Slave.

The station is in normal operation.



■When data exchange stops
The station is in normal operation. (This bit turns on every time
when data exchange stops.)
■When data are being exchanged
Check that a Class 2 DP-Master on the network has not changed
any relevant parameter.
Detected in
DP-Master
DP-Slave
DP-Slave
DP-Master
DP-Slave
DP-Master
DP-Slave
DP-Master
DP-Slave
DP-Slave

DP-Slave



DP-Master
APPX
Appendix 3 Buffer Memory
A
145