II - DCE FEL ČVUT v Praze
II - DCE FEL ČVUT v Praze
II - DCE FEL ČVUT v Praze
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Digital input SM 321; DI 4 x NAMUR<br />
Dimensions and Weight<br />
Dimensions<br />
W x H x D (mm)<br />
40 x 125 x 120<br />
Weight approx. 230 g<br />
Module-specific data<br />
Number of inputs 4<br />
Line length, shielded max. 200 m<br />
Type of protection PTB<br />
(see Appendix A)<br />
[EEx ib] <strong>II</strong>C<br />
acc. to EN 50020<br />
Test number Ex-96.D.2094 X<br />
Type of protection FM<br />
(see Appendix B)<br />
Voltages, currents, potentials<br />
Bus power supply<br />
Rated load voltage L+<br />
Reverse voltage<br />
protection<br />
Number of inputs which<br />
can be activated<br />
simultaneously<br />
CL I, DIV 2,<br />
GP A, B, C, D T4<br />
DC 5 V<br />
24 V DC<br />
yes<br />
Galvanic isolation<br />
Between channels and<br />
backplane bus<br />
yes<br />
Between channels and<br />
load voltage L+<br />
yes<br />
Between channels yes<br />
Between backplane<br />
bus and load voltage<br />
L+<br />
yes<br />
Permissible difference in potential (UISO) of signals<br />
from hazardous area<br />
Between channels and<br />
backplane bus<br />
Between channels and<br />
load voltage L+<br />
I/O Modules with Intrinsically-Safe Signals<br />
C79000-G7076-C152-04<br />
4<br />
60 V DC<br />
30 V AC<br />
60 V DC<br />
30 V AC<br />
Between channels 60 V DC<br />
30 V AC<br />
Between backplane<br />
bus and load voltage<br />
L+<br />
60 V DC<br />
30 V AC<br />
Voltages, currents, potentials continued<br />
Permissible difference in potential (UISO) for signals<br />
from non-hazardous area<br />
Between channels and<br />
backplane bus<br />
Between channels and<br />
load voltage L+<br />
400 V DC<br />
250 V AC<br />
400 V DC<br />
250 V AC<br />
Between channels 400 V DC<br />
250 V AC<br />
Between backplane<br />
bus and load voltage<br />
L+<br />
Insulation tested<br />
Channels with respect<br />
to backplane bus and<br />
load voltage L+<br />
Channels among each<br />
other<br />
Between load voltage<br />
L+ and backplane bus<br />
Current input<br />
From backplane bus<br />
From load voltage L+<br />
SIMATIC S7 Ex Digital Modules<br />
75 V DC<br />
60 V AC<br />
with 1500 V AC<br />
with 1500 V AC<br />
with 500 V DC<br />
max. 80 mA<br />
max. 50 mA<br />
Module power loss typical 1.1 W<br />
Status, interrupts, diagnostics<br />
Status indication<br />
Inputs green LED per channel<br />
Interrupts<br />
Hardware interrupt configurable<br />
Diagnostic interrupt configurable<br />
Diagnostic functions<br />
Group fault indication red LED (SF)<br />
Channel fault<br />
indication<br />
red LED (F) per channel<br />
Diagnostic functions<br />
readout<br />
possible<br />
Monitoring for<br />
Short-circuit I > 8.5 mA<br />
Wire break I 0.1 mA<br />
2-5
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