Slave Data Set; General Information; Slave Status Register; Process Data (Pzd) - HMS Anybus Communicator PROFINET-USS User Manual

Slave Data Set

General Information

The data associated with each slave is organized as follows:
Data from Gateway

Slave Status Register

Parameter Data (PKW)

Process Data (PZD)

Slave Status Register
This register reflects the current status of the slave.
(lsb)
b15 b14 b13
RES
• RES (Reserved)
Reserved for future use, mask off and ignore.
• FNF (Fieldbus Network Fault)
This bit indicates if the fieldbus has gone on- (set) or off- (cleared) line.
• USSF (USS Fault)
This bit is set if a USS master-slave communication fault has been detected.
• OP (Operational)
This bit is set if the gateway has detected the slave and found it operational.
• CFG (Configured)
This bit is set (1) if the node is configured in the master or cleared (0) if not configured.
• Slave No.
USS slave address (0... 31).
Process Data (PZD)
This is the actual Process Data (PZD) image.
Parameter Data (PKW)
The gateway does not process the Parameter Data (PKW) data in any way. This means that the param-
eter access protocol used to access PKW data, if required, must be implemented entirely on the PLC
side. Exactly how this is done is beyond the scope of this document.
Data from IO Controller
(reserved, set to zero)
Parameter Data (PKW)
Process Data (PZD)
b12 b11 b10 b9
FNF USSF
(2 bytes)
(size is device dependent)
- " -
b8 b7 b6 b5
OP RES CFG RES
Data Exchange 2-3
b4 b3 b2 b1
Slave No.
(lsb)
b0