SAFETY MANUAL - Tuv-fs.com
SAFETY MANUAL - Tuv-fs.com SAFETY MANUAL - Tuv-fs.com
SAFETY MANUAL ABBREVIATIONS 1-oo-2 1-oo-2D 2-oo-2 2-oo-3 API DIN DIU EMC EMI EUC FB FCR HIFT IL I/O IMB LD MMU MTR PC PST PSU SFC SFOC SIL ST TMR TÜV UPS One-out-of-two One-out-of-two with diagnostics Two-out-of-two Two-out-of-three Application Program Interface Deutsche Industrie-Norm (German Industrial Standard) Diagnostic Interface Utility Electromagnetic Compatibility Electromagnetic Interference Equipment Under Control Function Block Fault Containment Region Hardware Implemented Fault Tolerance Instruction List Input/Output Inter-module Bus Ladder Diagram Memory Management Unit Mean Time to Repair Personal Computer Process Safety Times Power Supply Unit Sequential Function Chart Second Fault Occurrence Time Safety Integrity Levels Structured Text Triple Modular Redundant Technischer Überwachungs-Verein Uninteruptable Power Supply Doc No P8094 Issue 14 September 2003 Page viii
SAFETY MANUAL GLOSSARY Actuators Architecture ASCII Availability Asynchronous Backplane Buffer Bus Companion Slot Controller Discrepancy Devices which cause an action (electrical, mechanical, pneumatic, etc.) to occur when required within a plant component. Organisational structure of a computing system which describes the functional relationship between board level, device level and system level components. The American Standard Code for Information Interchange. Uses seven bits to represent 128 characters. Both upper and lower case letters, numbers, special symbols and a wide range of control codes are included. The probability that a system will be able to perform its designated function when required for use – normally expressed as a percentage. A data communications term describing the method by which signals between computers are timed. Although the number of characters to be sent per second is undefined, the rate at which a character’s bits are sent is predetermined. Each character is preceded by a start bit and terminated by a stop bit. A printed circuit board which supports bussed functions to connectors mounted on a printed circuit board. Plug-in components and modules are then able to connect to the bus pins. A type of memory in which information is stored temporarily during transfer from one device to another, or one process to another. Normally used to accommodate the difference in the rate or time at which the devices can handle the data. A group of conductors which carry related data. Micro-based systems have an Address Bus, Data Bus and a Control Bus. Spare (standby) slot position adjacent (to the right) to the slot occupied by the ‘active’ module. The slots are inter-connected to enable the ‘active’ module to be ‘hot’ replaced as necessary. A Controller is the heart of any ICS Triplex Technology Ltd. microprocessor based system. It performs central processing of user application logic and controls the actions of input and output hardware, as well as peripheral hardware such as printers and Visual Display Units. A discrepancy exists if one or more of the Doc No P8094 Issue 14 September 2003 Page ix
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<strong>SAFETY</strong> <strong>MANUAL</strong><br />
ABBREVIATIONS<br />
1-oo-2<br />
1-oo-2D<br />
2-oo-2<br />
2-oo-3<br />
API<br />
DIN<br />
DIU<br />
EMC<br />
EMI<br />
EUC<br />
FB<br />
FCR<br />
HIFT<br />
IL<br />
I/O<br />
IMB<br />
LD<br />
MMU<br />
MTR<br />
PC<br />
PST<br />
PSU<br />
SFC<br />
SFOC<br />
SIL<br />
ST<br />
TMR<br />
TÜV<br />
UPS<br />
One-out-of-two<br />
One-out-of-two with diagnostics<br />
Two-out-of-two<br />
Two-out-of-three<br />
Application Program Interface<br />
Deutsche Industrie-Norm (German Industrial Standard)<br />
Diagnostic Interface Utility<br />
Electromagnetic Compatibility<br />
Electromagnetic Interference<br />
Equipment Under Control<br />
Function Block<br />
Fault Containment Region<br />
Hardware Implemented Fault Tolerance<br />
Instruction List<br />
Input/Output<br />
Inter-module Bus<br />
Ladder Diagram<br />
Memory Management Unit<br />
Mean Time to Repair<br />
Personal Computer<br />
Process Safety Times<br />
Power Supply Unit<br />
Sequential Function Chart<br />
Second Fault Occurrence Time<br />
Safety Integrity Levels<br />
Structured Text<br />
Triple Modular Redundant<br />
Technischer Überwachungs-Verein<br />
Uninteruptable Power Supply<br />
Doc No P8094<br />
Issue 14 September 2003<br />
Page viii