II - DCE FEL ČVUT v Praze

SM 332; AO 2 x 0/4...20mA HART
Dimensions and weight
Dimensions W x H x D (mm) 40 x 125 x 120
Weight approx. 280 g
Module-specific data
Number of outputs 2
Line length, shielded max. 400 m
Type of protection KEMA
(see Appendix A)
I/O Modules with Intrinsically-Safe Signals
C79000-G7076-C152-04
[EEx ib] IIC to
EN 50020
Test number KEMA 98 ATEX2359 X
Voltages, currents, potentials
Bus power supply
Rated load voltage
Reverse voltage protection
Galvanic isolation
Between channels and
backplane bus
yes
Between channels yes
Between channels and load
voltage L+
yes
Between backplane bus
and load voltage L+
yes
5 V DC
24 V DC
yes
Permissible difference in potential (UISO) for signals
from a hazardous area
Between channels and
backplane bus
Between channels and load
voltage L+
60 V DC
30 V AC
60 V DC
30 V AC
Between channels 60 V DC
30 V AC
Between backplane bus
and load voltage L+
60 V DC
30 V AC
Voltages, currents, potentials continued
Permissible difference in potential (UISO) for signals
from non-hazardous area
Between channels and 400 V DC
backplane bus
250 V AC
Between channels and 400 V DC
load voltage L+ 250 V AC
Between channels 400 V DC
250 V AC
Between backplane bus 75 V DC
and load voltage L+ 60 V AC
Insulation tested
Channels to backplane
bus and load voltage L+
with 1500 V AC
Channels to each other with 1500 V AC
Between backplane bus
and load voltage L+
with 500 V DC
Channels shielded with 500 V DC
Current input
From backplane bus
From load voltage L +
(at rated data)
max. 100 mA
max. 150 mA
Module power loss
Analog value formation
typically 3.5 W
Output value
SIMATIC S7 HART Analog Modules
Resolution (incl. overrange)
Readback value
12 bit (+ polarity)
8 bit
Cycle time (all channels)
Settling time
5 ms
for resistive load 2.5 ms
for inductive load 2.5 ms
for capacitive load 4 ms
Switch substitute values
Readback value
yes, configurable
Resolution
8 bit (+ polarity)
Conversion time (per channel)
40 ms
4-23