Company

Founded in

1995 in Colorado

Products Security electronics |

detention equipment | custom

metal products | building

automation | fire alarm

Market High-security and

correctional facilities

Territory Nationwide and

international coverageUL panel shop, clean

manufacturer

[

[

Sierra furnishes and installs:

Detention hollow metal doors and frames

Detention furniture

Pre-fabricated cells

Specialty locks

Wire mesh and grating

Glass and glazing

Perimeter security fencing

Expertise: Detention Equipment[

[

Sierra furnishes, integrates, and installs the following

systems:

Touch screen control systems

Tablet & PDA systems

Utilities control/ Building Automation System (BAS)

Controlled access

Multi-tasking CCTV

Fire alarm/detection

Video visitation

IP addressable equipment

Digital and analog equipment

Industrial networking

Remote access secure LAN

Man-down, duress systems

Intercoms

Facility specific, requested systems

Expertise: Security Electronics[

[

INDUSOFT

WEBINARAccess Control

By Sierra Detention Systems

Paul Miracle, Controls

Engineering

DETENTION INDUSTRY

CONSIDERATIONS

Physical Security

General Public

Facility Staff

Inmates

System Stability / Redundancy / Failover Required

Each HMI capable of standalone operation

Prioritized sequence of failover

System activity mainly user driven, not automated/process driven

Emphasis on “human” part of HMI

HMI COMPUTER SECURITY

Physical

InduSoft Hardkeys are secured to the HMI to prevent removal

HMIs secured in locked cabinets

Keyboard / mouse removed on touchscreen based systems

Auto-Run features of the Operating System disabled

HMI COMPUTER SECURITY

InduSoft

Project runs automatically on HMI startup

Security System used to prevent access to the Operating System

Close Project disabled

Task Switch (Alt-Tab) disabled

Task Manager disabled

Security System used to prevent Engineering Access by application users

Auto-Logoff enabled for all groups with Engineering Access

USER GROUP CONFIGURATION

HMI COMPUTER SECURITY

Application

InduSoft startup screen prevents access to the system without a valid logon

Once logged in, navigation is restricted based on HMI station and user

Device icon commands are disabled by default and must be enabled by the

PLC in order for them to operate

Some devices have additional security restrictions (interlocks, exterior

doors, etc.)

Some functions have additional restrictions (Group Release, Emergency

Release, etc.)

HMIs can be remotely disabled in the event of a security breach

SYMBOL LEVEL SECURITY

Position Properties

Command Disable Field

User / Group Level Checks

DOOR CONTROL ARCHITECTURE

Class based

All doors have identical capabilities

Individual door functionality based on the parameters assigned to the class

members

Provides flexibility to modify functionality without modifying code

DOOR CONTROL ARCHITECTURE

Database back end

Used for loading / storing device parameters

Provides flexibility (device names, etc.)

Retentive tags allow offline operation

DOOR CONTROL ARCHITECTURE

Communication

PLC Communication accomplished primarily Standard Driver Sheets

Allows enabling/disabling of individual sheets to optimize efficiency

Scripting

Extensive use of global procedures to centralize code

Extensive use of VBScript within global procedures to enhance built-in

functionality

Graphics

Symbols created for all devices to make modifications easy

Symbols primarily indicate device status only and contain minimal logic