Avoid Unauthorized Access to the Logic Solvers
Communications among logic solvers occur on dedicated safety networks with no direct connection from outside. All communication goes through an isolation node that securely allows DeltaV DCS and DeltaV SIS to exchange data.
Engineering tools offer configurable access control where administrators control user privileges. Items are edited only by approved users. A Logic Solvers lock prevents unauthorized access. A hardware key switch on the CSLS can enforce physical presence before implementing a change which means that logic Solvers are protected even if user credentials were compromised.
How It Works
Improve Security
Because the safety networks are both physically and logically isolated from any outside network, the safety networks are completely independent maintaining a higher level of security. All communication to logic solvers must go through a DeltaV controller — there is no direct access to the logic solvers. All external non-safety communications must pass through filtering and verification functions within the DeltaV SIS system.
