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Reference PS69-DPS
♦
CompactLogix or MicroLogix Platform
Profibus DP Slave Communication Module
ProSoft Technology, Inc.
Page 65 of 94
January 12, 2009
Note:
Every DPV1 read or write request must be acknowledged by the PLC application program.
Otherwise the PROFIBUS master shuts down communication for both channels, V0 (cyclic IO
data) and V1 (non-cyclic messages). This can cause unexpected lost of data between the master
and the PS69-DPS slave.
Extended Status Information
Via the extended status area the Slave module is in the position to transfer 96
Byte extended status information to the controller application. The information
transferred depends on the parameter "ExtStaSelect" in the "Device Command
Register". This can be controlled by the application program. If the controller
application selects a specific extended status, it will be acknowledged by the
Slave module in the status region in "ExtStaSelect". If the slave adapter does not
acknowledge this selection, the extended information is invalid. The number of
bytes within the extended status area which are valid depends on the selected
status. The number of valid bytes will be shown in the status area in "ExtStaLen".
Ext. Status 0 - (Length 0 Byte):
No extended status information transferred.
Ext Status 1 - Firmware (Length 32 Byte)
Structure member
Data type
Description
Example
FwName
SINT[8]
Firmware Name
"DPS "
FwType SINT[8]
Firmware
Type
"RIF1769"
FwVersion
SINT[8]
Firmware Version
"V01.000 "
FwDate
SINT[8]
Firmware Date
"25.07.05 "
Ext. Status 2 - Slave Configuration (Length 49 Byte)
Structure member
Data type
Description
CfgLength
SINT
Number of valid configuration bytes
CfgByte1
SINT
Configuration byte 1
CfgByte2
SINT
Configuration byte 2
CfgByte3
SINT
Configuration byte 3
CfgByte4
SINT
Configuration byte 4
.... ....
....
CfgByte48
SINT
Configuration byte 48
Ext. Status 3 - Master Configuration (Length 49 Byte)
Structure member
Data type
Description
CfgLength
SINT
Number of valid configuration bytes
CfgByte1
SINT
Configuration byte 1
CfgByte2
SINT
Configuration byte 2
CfgByte3
SINT
Configuration byte 3
CfgByte4
SINT
Configuration byte 4
.... ....
....
CfgByte48
SINT
Configuration byte 48