Siemens Metro 21 M216KA, Руководство оператора

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11-45
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
11.26 Analog Value Representation for Analog Input Modules in S5 Num-
ber Format
The tables in this section contain the measurement representations for the
individual measurement ranges of the analog input modules. The table values
apply to all modules with the corresponding measurement ranges.
The following tables contain the digitized analog values for the various mea-
surement ranges.
Since the binary representation of the analog values is always the same, the
following tables contain only the measurement ranges against the units.
Measured
Value in %
System Voltage Measurement Range
Dec.
±
10 V
±
80 mV
u
117.589 % 2409
u
11.769 V
w
94.1 mV Overflow
117.589 % 2408 11.758 V 94.06 mV
Overrange
2049
g
100.000 % 2048 10 V 80 mV Rated range
0.0488 % 1 4.9 mV 39 V
0 % 0 0 V 0 V
–0.0488 % – 1 –4.9 mV –39 V
– 100.000 % – 2048 – 10 V – 80 mV
– 2049 Underrange
– 117.593 % – 2408 – 11.759 V – 94.06 mV
g
t
– 117.593 % – 2409
t
11.759 V
v
– 94.1 mV Underflow
Measured
Value in % System Voltage Measurement Range
Dec. 1 ... 5 V
u
117.589 % 2921
w
5.704 V Overflow
117.589 % 2920 5.704 V Overrange
100.05 % 2561
g
100.000 % 2560 5 V Rated range
0.0488 % 513 1 V + 1.95 mV
0 512 1 V
– 0.0488 % 511 Underrange
– 17.593 % 151 0.296 V
t
– 17.593 % 4095
t
0.296 V Open circuit
How to Read the
Measurement
Tables
Voltage
Measurement
Range
±
10 V
and
±
80 mV
Voltage
Measurement
Range 1...5 V
SC Analog Electronic Modules – Parameters