11-4
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
11.2
Notes on the Parameters of the Analog Input Modules
Each module is intended for a specific measurement type. You can select a
measurement range for each channel.
Measurement Type
Measurement Ranges
Notes
Deactivated
Use this parameter if you have not connected a
sensor to this channel and you want to shorten the
module cycle time.
Voltage measurement range
"
80 mV ...
"
10 V
Current, 4-wire measuring
transducer
"
20 mA; 4...20 mA
Current, 2-wire measuring
transducer
4...20 mA
The 2-wire measuring transducers must be oper-
ated via an external voltage source at +24 V.
Resistance measurement range,
4-conductor connection
0 ... 600
W
The 4-conductor connection gives the maximum
possible accuracy. The conductor resistances are in
principle fully compensated.
Resistance thermometer with
linearization
4-conductor connection
Platinum and nickel resist-
ance thermometer
Temperature characteristics of various resistance
thermometers (dynamic reference temperature) are
stored in the module’s ROM. The converted analog
value is shown in units of 0.1 (0.5)*
o
C in the stan-
dard temperature range and 0.01 (0.05)*
o
C in the
climatic temperature range.
Thermocouples with lineariza-
tion
Type R (PtRh-Pt)
Type J (Fe-CuNi)
Type K (NiCr-Ni)
Temperature characteristics of various thermocou-
ples are stored in the module’s ROM. The con-
verted analog value is shown in units
of 0.1 (1)*
o
Ct.
* The values in brackets refer to S5 format.
Measurement
Type/Measurement
Range
SC Analog Electronic Modules – Parameters
