ifm
System Manual
ecomat
mobile
PDM360NG (CR1080, CR1081, CR9042) Target V01
2011-07-28
Glossary of Terms
446
DTC
DTC =
D
iagnostic
T
rouble
C
ode = error code
Faults and errors well be managed and
reported via assigned numbers – the DTCs.
E
ECU
(1)
E
lectronic
C
ontrol
U
nit = control unit or
microcontroller
(2)
E
ngine
C
ontrol
U
nit = control device of a
engine
EDS-file
EDS =
E
lectronic
D
ata
S
heet, e.g. for:
File for the object directory in the master
CANopen device descriptions
Via EDS devices and programs can exchange
their specifications and consider them in a
simplified way.
Embedded software
System software, basic program in the device,
virtually the operating system.
The firmware establishes the connection
between the hardware of the device and the
user software. This software is provided by the
manufacturer of the controller as a part of the
system and cannot be changed by the user.
EMCY
abbreviation for emergency
EMV
EMC =
E
lectro
M
agnetic
C
ompatibility
According to the EC directive (2004/108/EEC)
concerning electromagnetic compatibility (in
short EMC directive) requirements are made
for electrical and electronic apparatus,
equipment, systems or components to operate
satisfactorily in the existing electromagnetic
environment. The devices must not interfere
with their environment and must not be
adversely influenced by external
electromagnetic interference.
Ethernet
Ethernet is a widely used, manufacturer-
independent technology which enables data
transmission in the network at a speed of 10 or
100 million bits per second (Mbps). Ethernet
belongs to the family of so-called "optimum
data transmission" on a non exclusive
transmission medium. The concept was
developed in 1972 and specified as
IEEE 802.3 in 1985.
EUC
EUC = "Equipment Under Control"
EUC is equipment, machinery, apparatus or
plant used for manufacturing, process,
transportation, medical or other activities
(
IEC 61508-4, section 3.2.3). Therefore, the
EUC is the set of all equipment, machinery,
apparatus or plant that gives rise to hazards
for which the safety-related system is required.
If any reasonably foreseeable action or
inaction leads to hazards with an intolerable
risk arising from the EUC, then safety functions
are necessary to achieve or maintain a safe
state for the EUC. These safety functions are
performed by one or more safety-related
systems.
F
Failure
Failure is the termination of the ability of an
item to perform a required function.
After a failure, the item has a fault. Failure is
an event, fault is a state.
The concept as defined does not apply to
items consisting of software only.
Failure, dangerous
A dangerous failure has the potential to put the
SRP/SC in a hazardous or fail-to-function
state. Whether or not the potential is realized
can depend on the channel architecture of the
system; in redundant systems a dangerous
hardware failure is less likely to lead to the
overall dangerous or fail-to-function state.