B-4
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
I/O bus speed
The speed of the I/O bus is selectable. Certain modules, i.e. the IP 265
have to be operated at a lower I/O bus speed (slow mode). The speed
can be set on the IM 318–B interface module.
IP 20
Degree of protection to DIN 40050: Protection against contact with
live or moving parts by fingers or against ingress of solid foreign bo-
dies of diameters greater than 12 mm.
Isolated
In isolated I/O modules, the reference potentials of the control and
load circuits are electrically isolated. The input and output circuits are
not “grouped”, i.e. the input and output cicuits are not connected to a
common potential (so–called group of one). Do not confuse with
“floating”.
K
KBL
³
List of communication links
KR
³
Communication reference
L
Length
Length of a data type
List of communication
links
The list of communication links (KBL) contains the configuring data
of the bus nodes concerned.
The list of communication links for the ET 200U(DP Standard/FMS)
describes seven relationships.
Load power supply
For supplying power to the I/O modules
Loop resistance
Overall resistance of the outgoing and return conductors.
M
Master interface module
Module for distributed configurations. The IM 308–B master interface
module is used for “connecting” the distributed I/O to the programma-
ble controller.
Master–slave access me-
thod
Bus access method providing for only one
³
active node while all
other nodes are
³
passive.
N
NCM
SINEC NCM (Network and Communication Management) is a soft-
ware tool for configuring the CP 5431 FMS as an FMS master.
Non–floating
In non–floating I/O modules, the reference potentials of the control
and load circuits are electrically interconnected.
O
Object
Each FMS bus node is addressed via objects. The data area and data
structure are defined in an object.
Object code
The object code describes the structure of an
³
object.
In the ET 200U(DP Standard/FMS), objects of the type
³
Sim-
ple–Variable,
³
Array and
³
Event are used.
Glossary