1143   Cooperating Clients in BRCB

Created: 01 Aug 2013

Status: Not Applicable

Part: Part 7-2 (2010; Edition 2)

Links:

Page: 96

Clause: 17.2.2.1

Paragraph: Before Figure 24

Category: No impact on this part

Issue

The text before figure 24 reads: "The use of a particular instance of a BRCB (for example which remote clients can actually use the SetBRCBValues service on a particular BRCB) is typically pre-configured locally. The means of performing this configuration is a local issue. However, it is assumed that one or more cooperating clients (for example primary and secondary SCADA systems) may be allowed to have access to a single BRCB."

The definition that it "may be allowed that one or more cooperating client have access to a single BRCB" could be interpreted in several ways. One could be that an enabled BRCB could be used by client 1 and client 2: client 1 enables and later client 2 enables without going through client 1 disables, BRCB is disabled, client enables again ... It is nowhere defined what this statement means and how we could interoperability with such a definition.

Proposal

Define what "cooperating client" means.