Notes On The Parameters Of The Analog Input Modules - Siemens Metro 21 M216KA Operator's Manual

SC Analog Electronic Modules – Parameters

11.2 Notes on the Parameters of the Analog Input Modules

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