Computer Aid, Inc.

PLC Programmer

Employment Type
Contract to Permanent

Position Description/Responsibilities (CCC/Vendor)

Re-Issuing this positon, please see vendor notes. 


PLC programming position located in hartford, Ct.



CAI is an Equal Opportunity/Affirmative Action employer. Minorities, women, veterans and individuals with disabilities will receive consideration and are encouraged to apply.



Computer Aid, Inc.


CAI is a global IT services firm that is currently managing active engagements with over 100 Fortune 1000 companies and government agencies around the world.  CAI offerings include balanced outsourcing solutions, Legacy Support, Application Development, Application Knowledge Capture, Service Desk/Desktop Services, and Managed Staffing Services.  Our unique methodologies and tools enable us to provide our clients with real techniques for increasing productivity, profitability and competitiveness. 


Headquartered in Allentown, PA, with offices and staff throughout the US, Canada, Europe and the Asia Pacific region, CAI offers a variety of delivery options including on-site, off-site and blended solutions.  Our delivery model allows us to successfully leverage our global staff of over 3,500 technical and managerial professionals. 


CAI has a PLC programming position located in hartford, Ct.


This is a long-term position with specifics below...


PLC programmer to interface PLC sensors to Building Management Systems (BMS). This person would program/install sensors to capture and report on information regarding the maintenance of a building (pipe pressures, temperature readings, sensing wetness …)


  • Conceptual designs of interfacing  sensor systems to PLCs and BMS systems

o   Create and document design requirements

o   Create process flow diagrams

o   Perform prototyping and testing of the designs

  • Interface  sensors to PLC/BMS Systems

o   Connect a sensor gateway to an Alerton BACnet controller via a BASrouter (Ethernet) and display values in the back-end web-based sensor system.

o   Connect the Alerton BACnet controller to a Chipkin Modbus converter and display values in the back-end web-based sensor system

o   Configure and connect a Bravo Controls T3 BACnet controller to existing building sensors and display values in the back-end web-based sensor system

  • Build a display board depicting configured controllers for demonstration purposes

Knowledge transfer of the hardware and software environments


  • Strong background in System Design
  • Discipline in PLC languages such as Function Block Diagram, Ladder diagram, STL, and Structured Text
  • Experience programming the following PLCs:

ü  Allen Bradley MicroLogix 1400,  Alerton 853C, Schneider TSX Momentum

  • Experience in the following protocols:

ü  BACnet, DF-1, and Modbus

  • Experience with the following software:

ü  Schneider Electric Concept 2.6XL

ü  Alerton Visual Logic

ü  Alerton Envision

ü  Rockwell RSLogix 500



Position Requirements/Technical Skills (CCC/Vendor)


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