Long-haul safety system trips

A method for use in a safety instrumented system servicing a process control system of a long-haul process plant, the method comprising:

• receiving, at a safety data concentrator communicatively connected to a first set of one or more safety logic solvers that are disposed in a first portion of the safety instrumented system and that are in operative communication with a first set of one or more process control devices of the process control system of the long-haul process plant, a plurality of safety messages generated by the first set of one or more safety logic solvers;
• combining, by the safety data concentrator, the plurality of safety messages into a single, concentrated safety message, the single, concentrated safety message having a total length that is less than a sum of the individual lengths of the plurality of safety messages;
• and
• transmitting, by the safety data concentrator, via a long-haul link to a second portion of the safety instrumented system, the single, concentrated safety message to a safety data de-concentrator communicatively connected to a second set of one or more safety logic solvers that are disposed in the second portion of the safety instrumented system and that are in operative communication with a second set of one or more process control devices of the process control system,
• the safety data de-concentrator configured to recover the plurality of safety messages from the single, concentrated safety message for communication to the second set of safety logic solvers, and
• the first set of one or more process control devices and the second set of one or more process control devices performing one or more physical functions to thereby control an industrial process executing in the long-haul process plant.

A method for use in a safety instrumented system servicing a process control system of a long-haul process plant, the method comprising:

• receiving, by a safety data de-concentrator, via a long-haul link from a first portion of the safety instrumented system, a single, concentrated safety message transmitted by a safety data concentrator communicatively connected to a first set of one or more safety logic solvers that are disposed in the first portion of the safety instrumented system and that are in operative communication with a first set of one or more process control devices of the process control system,
• the safety data concentrator configured to combine a plurality of safety messages generated by the first set of one or more safety logic solvers into the single, concentrated safety message, the single, concentrated safety message having a total length that is less than a sum of the individual lengths of the plurality of safety messages,
• the safety data de-concentrator communicatively connected to a second set of one or more safety logic solvers that are disposed in a second portion of the safety system and that are in operative communication with a second set of one or more process control devices of the process control system, and
• the first set of one or more process control devices and the second set of one or more process control devices performing one or more physical functions thereby controlling an industrial process executing in the long-haul process plant;
• recovering, by the safety data de-concentrator, the plurality of safety messages from the single, concentrated safety message;
• and
• communicating the recovered plurality of safety messages to the second set of one or more safety logic solvers.