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Technical Specifications
Supply voltage On/Off
A failure of the supply voltage to the electronics/sensors on the ET 200X is always
displayed by the "ON" LED on the basic module and also entered in the diagnostic
data area of the basic module.
Caution
!
When the supply voltage for electronic components/sensors on the ET 200X is
switched on/off, incorrect interim values may be obtained temporarily at the analog
outputs.
Effect of the value range for the analog input
The behavior of the expansion modules with analog inputs depends on where the
input values are in the value range. The following table indicates this:
Table 7-60 Behavior of the analog modules as a function of the position of the analog output value
Measured va-
Input value in
lue in
SIMATIC
S7 format
in the rated
Measured
range
value
in the over-
Measured
range/under-
value
range
in the overflow
7FFF
H
in the under-
8000
H
flow
Outside the up-
Measured
per or lower
value
limit value
Before parame-
7FFF
H
terization or in
the event of in-
correct para-
meterization
*
When the "group diagnosis" parameter has been enabled in the configuration software
** When the diagnostic or hardware interrupt has been enabled in the configuration software
7-104
Input value in
SF LED
SIMATIC
S5 format
Measured
–
value
Measured
–
value
End of the
On*
overrange +1
plus overflow
bit
End of the un-
On*
derrange –1
plus overflow
bit
Measured
–
value
7FFF
On*
H
Diagnostic
Interrupt
data area of
the module
–
–
–
–
Entry per-
Diagnostic in-
formed*
terrupt**
Entry per-
Diagnostic in-
formed*
terrupt**
–
Hardware inter-
rupt**
–
–
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
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