ICS Triplex T8110C

ICS Triplex  T8110C   Digital Output Module

The Trusted fault tolerant system provides:

1. No single point of failure. All critical components are triplicated. Trusted continues to operate correctly in the presence of one (or more) failures.
2. Virtually 100% fault detection. When a critical component does fail, it is detected. Fault detection is an important part of fault tolerance. Identifying failed components reduces the mean time to repair and increases system availability.
3.Automatic isolation of faults without degradation of performance. When a fault occurs in a critical circuit, it is immediately isolated from affecting the operation of the system. There is no slowdown or degradation of system performance in the presence of faults.
4. Bumpless fault handling. When a fault occurs, the system continues to provide control without delay or degradation in performance.
5.Hot replacement of modules. Modules may be removed and replaced under power. Reinitialization of replaced modules is done without degradation of system performance.
6. Fault tolerance transparent to the application programs. Application programs are developed the same as with a non-redundant controller. No special programming is required to coordinate the triplication inherent in the system.
7. Extended fault tolerance into the process. Fault tolerance within the Trusted system can be extended to field devices to ensure correct operation in the presence of faults.
8. Small and light. The Trusted system is one-third the size and one-quarter the weight of competing TMR systems.
9. Control and safety in one system. The Trusted system is certified for both control and safety using a TÜV approved firewall.
10. Open connectivity. Trusted can operate as an OPC server.

The Trusted system operates as follows:

Process state data (switch position, transmitter reading, etc.)is sensed by an input module. Process state data is buffered on each input module. Information is transmitted over the triple redundant inter-module bus (IMB).
The TMR processors read and vote the process state information. The processors perform application programs that have been stored in memory. The processors operate as a triplicated set, sharing information with each other and running in tight synchronization. TheTMR processors calculate output commands to be sent to outputs.
Triplicated output commands are sent back over the IMB to the appropriate output module(s). The output module(s) receive the commands and vote the data. Output circuits are driven by the majority-voted commands.
The Trusted system continuously repeats this scan sequence at very high speed providing continuous, fault-tolerant control. If an internal circuit within the system fails, it is out-voted, the failure is annunciated, and the process continues operating without interruption.

The Trusted programmable controller is comprised of three main assemblies; the controller assembly, expander assembly, and power system. Within the controller and expander assemblies are various triplicated modules.
All assemblies consist of a 19 inch chassis in which the modules are installed. Mounting brackets allow the chassis to be either front (rack) or rear (panel) mounted.
The Trusted system communicates with external systems through either the main processor, dedicated communication modules or a gateway (PC) module. Multiple serial and Ethernet communications using a variety of protocols are possible. Communication modules may be installed in both the controller and expander chassis.

Other models:  T8100 ，T8110B ，T8110C ，T8151B ，T8160 ，T8191 ，T8193 ，T8231 ，T8300 ，T8310 ，T8311 ，T8402 ，T8403 ，T8403C ，T8431 ，T8431C ，T8451 ，T8451C ，T8461 ，T8461C ，T8480 ， T8480C

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