Instead of pre-configured I/O channel connections to pre-processing function blocks, user-customized configurations can be used. There are some rules which must be followed to create a working configuration. Application Configuration automatically checks if configuration is valid and results are shown in the output pane. See the technical manual for the minimum I/O requirement per application function block.
Example 1
Figure 1. Missing required input connection for outputFigure 2. All required input connections configured for output
In Figure 1, the output connection requires more input channels to be connected. Figure 2 has correction for Figure 1 where all required inputs are configured and the input order is according to installation.
Note: When an output is not connected to any function block, Application Configuration considers the configuration valid. Check validation warnings from the output pane for possible missing connections. Once the output is connected, the complete configuration is validated again.
Example 2
Figure 3. Output connection requiring only one inputFigure 4. Two output connections requiring two inputs
UTVTR ULx inputs can be used as one-, two- or three-phase connection. The ACT blocks connected to U3P may further demand two- or three-phase connection. URES input must be connected if URES_MEAS output is used. Figure 3 illustrates the use case of only residual voltage being used in UTVTR1. Figure 4 illustrates a case where one residual voltage and one phase voltage are sufficient.
Example 3
Figure 5. Remote samples as input connectionsFigure 6. Local inputs sent out as remote samples
Instead of local hardware inputs in Figure 5, remote samples can be used by local function blocks. Remote samples sender can also be configured as described in Figure 6, where GRP_OFF is used to indicate that channel is not available locally. See the technical manual for details about GRP_OFF.
Note: TVTR and TCTR function blocks accept analog channels connected only either from local or remote, that is, local and remote channels cannot be mixed within a TVTR/TCTR function block.
Note: It is not possible to forward the received remote analog channels.
Note: An analog input can only be connected to one function block. Triplets (for example, U3P and I3P) should be used instead in the application to connect analog inputs to other function blocks.
Example 4
Figure 7. Hardware binary input channel shared by function blocksFigure 8. GOOSE input shared by function blocksFigure 9. RTD input shared by function blocks
GOOSE, RTD and binary inputs can be shared by multiple function blocks.