3 Integration of the module in PROFIBUS-DP
3.1 Data mapping under PROFIBUS-DP
XI/ON: XNE-1SWIRE
09/2011 MN05002016Z-EN
www.eaton.com
27
Process input data of approved SWIRE slaves (except SWIRE-DIL)
The field input data of all approved SWIRE slaves apart from SWIRE-DIL is passed
to the process input data. If the parameters specify that the status of the slave
(online / diagnostics) should be transferred, the most significant bit of the nibble of
each slave is replaced by the status flag.
Meaning of the 4-bit process input data of approved SWIRE-DIL slaves apart from
SWIRE-DIL devices:
Tab. 8 Process input data of approved SWIRE slaves (except SWIRE-DIL)
The automatic generation of a diagnostics flag via an input such as PKZ
ERR
Sx of the
SWIRE-DIL is not implemented with these products. If a slave does not support the
number of 4 input bits, the inputs are assigned to the process input data in ascending
order, likewise starting from the least significant bit.
3.1.2
Process output
Field output data is output from an XNE-1SWIRE to a field device. The process
output data is the data that is transferred by the PLC via a gateway and the XNE-
1SWIRE to the SWIRE slaves. The transfer is carried out in 8-byte format. 4 bits are
reserved for each SWIRE slave.
Tab. 9 Data structure
The data of SWIRE slave 1 is the data of the first physical slave on the SWIRE bus.
The remaining slaves are assigned in consecutive order accordingly. The meaning of
the data of an SWIRE slave depends on the product concerned.
Bit 3 and 7
Bit 2 and 6
Bit 1 and 5
Bit 0 and 4
SCx / DI 3
DI 2
DI 1
DI 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 1
SWIRE Slave 2
SWIRE Slave 1
Byte 2
SWIRE Slave 4
SWIRE Slave 3
Byte 3
SWIRE Slave 6
SWIRE Slave 5
Byte 4
SWIRE Slave 8
SWIRE Slave 7
Byte 5
SWIRE Slave 10
SWIRE Slave 9
Byte 6
SWIRE Slave 12
SWIRE Slave 11
Byte 7
SWIRE Slave 14
SWIRE Slave 13
Byte 8
SWIRE Slave 16
SWIRE Slave 15