S5-Fdl Communication - Beckhoff FC3102 Documentation

FC310x as master
3.6.5

S5-FDL Communication

FDL-AGAG communication is possible with S5 controllers or with other PROFIBUS FDL devices. The
following specifications apply here to the PROFIBUS SAPs:
FC310x sends
SDA request with DSAP = station address + 1 of the FC310x and SSAP = station address + 1 of the other
FDL device. Data corresponds to the data length passed with the ADS write. The SDA telegram is only sent
when there is a call to ADS write:
ADS-Write parameters
Net-ID
Port
IndexGroup
IndexOffset
Length
Data
Other FDL device sends:
SDA request with DSAP = station address + 1 of the other FDL device and SSAP = station address + 1 of
the FC310X. Data corresponds to the data length set at the other FDL device. The FC310x temporarily
stores the received data which can be read by ADS read:
ADS-Read parameters
Net-ID
Port
IndexGroup
IndexOffset
Length
Data
ADS-Read parameters
Net-ID
Port
IndexGroup
IndexOffset
Length
Data
36
Meaning
Net-ID of the master (see the device's ADS [} 28] tab)
0x1000 + station address of the other FDL device
0x01000000
0
Length of the data that is to be written
In request: data that is to be written
Meaning
Net-ID of the master (see the device's ADS [} 28] tab)
0x1000 + station address of the other FDL device
0x01000000
0
Length of the received data
In response: received data. There is a receive counter at the end of the received
data that is incremented with every reception
Meaning
Net-ID of the master (see the device's ADS [} 28] tab)
0x1000 + station address of the other FDL device
0x04000000
Station address of the other FDL device * 2
2
In response: receive counter, incremented with each reception
Version: 3.0 FC3101 and FC3102