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DeltaV™ PK Flex Controller
PK Flex Controller
The DeltaV™ PK Flex Controller provides the same powerful functionality as other PK Controllers in the system, but now offers added flexible and scalable capacity through a subscription-based license.
Users can subscribe only to what they need and can add functionality over time.
DeltaV™ PK Flex Controller


DST Limit
50 up to 1500
Module Execution Rates
25ms, 50ms, 100ms, 500ms, 1s, 2s, 5s, 10s, 30s, 60s
User Memory
Controller memory
Input Power Required
24V DC
Protocols Supported Natively on PK FLEX Controller
Modbus TCP (Server & Client), Ethernet/IP (Client: Class 1 & Class 3), OPC UA Server, and PROFINET (Controller). APL transmitters are supported under PROFINET. Other protocols available.
Operating Temperature
−40° to 60°C (-40° to 140°F)
Storage Temperature
−40° to 85°C (-40° to 185°F)
Relative Humidity
5 to 95%, non-condensing Protection Rating IP20, NEMA 12
Airborne Contaminants
ISA-S71.04-1985 Airborne Contaminants Class G3 Conformal Coating Shock (Normal Operating Conditions) 10g ½-sine wave for 11ms
Vibration (Operative Limit)
1mm peak-to-peak from 5Hz to 13.2Hz, 0.7g from 13.2Hz to 150Hz


  • Offered as a subscription for increased flexibility and reduced capital expenditures
  • Eliminates the cost and time-consuming data mapping exercises
  • Saves cabinet space by leveraging the six built-in Ethernet ports
  • Supports 1:1 redundancy without adding footprint or configuration changes
  • Flexible I/O enables you to choose from M-series traditional, S-series traditional Charms I/O Card and Wireless I/O cards to best suit your needs
  • Integrated safety with DeltaV SIS Electronic Marshalling and DeltaV SlS 1508 Safety Logic Solver
  • Easily connect third-party devices such as Panel HMIs and variable speed drives natively without the use of a dedicated Ethernet or I/O card.
  • Get secured access through added layers of protection and encryption technologies that prevent against unauthorized access
  • Faster logic execution capabilities


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