rotork Mk3 - Page 10

Foundation Fieldbus CP Option Card Technical Manual
10 of 116 Publication PUB089-005-00_0618
1.1 General
The FF CP card is capable of performing the following functions:–
a) Link Master / Link Active Scheduler
b) Basic Device
The in-built function blocks vary in availability between the different actuator types. The input and
output blocks are used to link to the transducer block and tie to the available actuator functions. For
example the AI block associated with actuator torque measurement is only available in the DSM
actuator type. The following table lists the function blocks and their related availability in each actuator
type.
Function Block Type
Resource Block – System information
Transducer Block – Device configuration
Digital Inputs
DI 1 Closed limit or multistate
DI 2 Open limit or multistate
DI 3 Selector in remote or multistate
DI 4 General alarm or multistate
DI 5 Actuator moving or multistate
Digital Outputs
DO 1 Open or multistate
DO 2 Close or multistate
DO 3 Stop or multistate
DO 4 Single bit selectable or multistate
Analogue Inputs
AI 1 Analogue position feedback
AI 2 Torque / Thrust
Analogue Output
AO Desired position (set point command)
Controllers
PID (3 term controller)
Control Selector