Project:      Presidio County Jail, Marfa, TX controls / communications systems

Client:     Slate Security Systems, Inc.

Project description:

A complete controls / communication system was installed in a new county jail facility in Marfa, TX. The system utilized an Allen-Bradley SLC-5/03 PLC system for door and lighting control via a custom graphic operator interface panel. The PLC was integrated via a serial interface to a TOA IC-100 intercom system for call annunciation on the graphic panel. Alarm reporting was implemented through use of a serial printer interface to the PLC.

C&E Design Services scope:

• Detailed configuration of the PLC system and interfaces
• Equipment room layout and conduit system design drawings
• Coordination of subcontract for conduit, wire and backbox installation
• All submittal documents for approval of control / communication systems
• Detailed design of control / power panels and system wiring diagrams
• Generated purchase order requests and assisted in expediting of electrical equipment
• Fabrication of PLC and power panels
• Ladder logic programming of PLC
• Development of basic module program for serial interface of PLC to intercom CPU
• Basic module programming for printer interface
• Start-up and debugging in fabrication shop
• Coordination of installation subcontract and installation