Rockwell Automation T8094 8000 Series TMR System Safety Manual - Manual (Page 12)

SAFETY MANUAL
D oc N umber T8094
I ssue 27 – June 2013
Page xii
Hot Swap Alternative term for Companion Slot
IEC 1131 TOOLSET Software used to configure and program the
8000 series TMR system.
IEC 61508 IEC61508 is an international standard that
covers functional safety, encompassing
electrical,
electronic and programmable
electronic systems; hardware and software
aspects.
IEC 61511 IEC61511 is an international standard that
covers
functional safety and Safety
Instrumented Systems for the process
industry, encompassing electrical, electronic
and
programmable electronic systems,
hardware and software aspects.
EPROM A non-volatile storage medium which is
electronically programmed. The EPROM
device may be erased by strong ultra-violet
light.
IL Instruction List. A low level IEC1131 language,
similar to the simple textual PLC’s language.
Industrial Processor High performance processor for use in non
safety-related applications which can be used
in a simplex or dual-redundant configuration.
Input Module Interface that converts input signals from
external devices into signals that the control
system can utilise.
I/O Input/Output conditioning circuits (as distinct
from the central processing).
I/O Driver Essential software to allow the IEC1131
TOOLSET
to configure and program unique
types of TMR system I/O interfaces.
LD Ladder Diagram. An IEC1131 language
composed of contact symbols representing
logical equations and simple actions. The
main function of the ladder diagram is to
control outputs based on input conditions.
MMI Man Machine Interface. The operator’s
window to monitoring and keys, knobs,
switches, Graphical User Interface of the
Operator Workstation, etc. for making
adjustments in the process.
Modbus An industry standard communications
protocol developed by Modicon. Used to
communicate with external devices such as
distributed control systems (DCSs) or operator
interfaces.
M-oo-N m-out-of-n. See Voting System
Module An electronic (generally pluggable) sub-
system.