Addressing With Routing Over Rfc; Rfc Mullticomputing With Tsap - Softing NETLink S7-Compact User Manual

NETLink S7-Compact - User Guide
Please note that under unfavorable circumstances an incorrectly parameterized NETLink S7-Compact
Gateway can interfere with the bus to the extent that regular bus operation is no longer possible.
8.2

Addressing with Routing over RFC

Since the RFC 1006 protocol normally cannot be used to transmit PLC routing information (MPI<-
>PROFIBUS) in a connect request frame, it was necessary to implement various addressing methods
in order to make the device compatible with all possible communication setups. The parameters that
are required for this purpose can all be configured on the web interface used to manage NETLink S7-
Compact.
These addressing methods are:
§
RFC Multicomputing with TSAP (see Section
§
RFC Routing via CPs with TSAP (see Section
These two addressing methods, which cannot be used together, make it possible to use most
communication setups that can also be used with NETLink-S7-NET drivers.
8.2.1

RFC Mullticomputing with TSAP

This function makes it possible to communicate with more than one CPU on a rack (=>
multicomputing) in S7-400 systems with-out any need for the additional CPUs to be connected to the
same PROFIBUS cable.
For this to be possible, direct communications take place with on-ly one single configured station
(CPU address 49 in this example). This station then forwards data packets to the desired rack/slot.
If you use this mode, the following settings must be configured on the web interface configuration
page:
§
RFC Multi Computing with TSAP must be enabled (ON)
§
RFC Routing over CP with TSAP must be disabled (OFF)
§
Enter the address for the communication station that will be communicating with the
multicomputing system as the bus address
40
Note
Incorrect bus parameters can interfere with the bus considerably!
Note
The required paths within the automation system are defined and managed by the CPU
=> Routing.
RFC Mullticomputing with TSAP
RFC Routing over CP with TSAP
40
) and
41
).
Version EN-062023-1.00