Using fieldbus technology in the control strategy > Automatically assigning DeltaV function blocks to the H1 card

Fieldbus resource limits

The following table shows the maximum numbers of VCRs and function blocks supported by the DeltaV system.

Item

Maximum Supported

Publisher VCRs

35

Subscriber VCRs

50

Total VCRs

50

Function blocks assigned to fieldbus devices(1)

64

Function blocks assigned to the H1 card(1)

32

(1) Refer to  fieldbus Control Strategy Procedures for additional information on function block assignment limits.

The Advanced tab of the Port Properties dialog shows the currently configured VCRs and function blocks and the maximum numbers supported.