ifm
Basic Device Manual AS-i ControllerE M4 Target V15
2015-10-30
Terms and abbreviations
Hardware error, exception error
273
Ethernet
Ethernet is a widely used, manufacturer-independent technnology which enables
transmission of data 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.
FE
FE =
F
unctional
E
arth
Functional earth is a reference potential which is not connected to protective
earth or only connected when special measures are taken. The functional earth
serves as equalisation of potential for an ungrounded installation (e.g. SELV).
Fieldbus
A
→bus for industrial applications: mechanically extremely robust and excellent
data protection
Firmware
Basic program in the device, virtually the operating system
The firmware establishes the connection between the hardware of the device
and the user software.
Gateway
Coupler
Gateways enable connection of completely different systems. Gateways are
used when two incompatible network types are to be connected by converting
the protocol of one system to the protocol of the other system.
Here: Connection of AS-i to higher-level fieldbus systems such as
→Profibus
DP,
→DeviceNet, Interbus-S or other interfaces, e.g. RS-485. The device
includes an AS-i master which is directly coupled to the
→host interface (e.g.
→Profibus DP slave).
Host
The controller in the hierarchy above the AS-i master, e.g. a PLC or a processor,
also called "fieldbus master".
ID
ID =
Id
entifier
Name to differentiate the devices / participants connected to a system.
IP address
IP =
I
nternet
P
rotocol
The IP address is a number which is necessary to clearly identify an internet
participant. For the sake of clarity the number is written in 4 decimal values, e.g.
127.215.205.156.
LAS
L
ist of
A
ctive
S
laves
In this slave list the controllere enters the slaves detected as active for this AS-i
master.
LDS
L
ist of
D
etected
S
laves
In this slave list the controllere enters the slaves detected as present for this AS-i
master.
LED
LED =
L
ight
E
mitting
D
iode
Light emitting diode, an electronic component with high coloured luminosity at
small volume with a negligible power dissipation.
LFS
L
ist of
F
ailed
S
laves
In this slave list the controllere enters the slaves with a projection error on this
AS-i master..
LPM
L
ist of
P
rojected
M
onitors
In this slave list the controllere enters the safety monitors projected for this AS-i
master.
LPS
L
ist of
P
rojected
S
laves
In this slave list the controllere enters the slaves projected for this AS-i master.
