Siemens Simatic S7-300 Instrukcja Obsługi Strona 52

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Digital modules
3.1 Module overview
S7-300 Module data
52 Manual, 02/2013, A5E00105505-08
Table 3- 3 Digital input modules (continued)
Module
SM 321;
DI 16 x DC48-125V
SM 321;
DI 16 x
AC120/230 V
SM 321;
DI 16 x NAMUR
SM 321;
DI 8 x
AC 120/230V
SM 321;
DI 8 x AC
120/230V ISOL
Properties
(-1CH20-) (-1FH00-) (-7TH00-) * (-1FF01-) (-1FF10-)
Number of inputs 16 DI; isolated in
groups of 4
16 DI; isolated in
groups of 4
16 DI; isolated in
groups of 2
8 DI; isolated in
groups of 2
8 DI; isolated in
groups of 2
Rated input voltage 120/230 VAC 120/230 VAC 24 VDC 120/230 VAC 120/230 VAC
Suitable for... Switches;
2-wire, 3-wire and
4-wire proximity
switches (BEROs)
Switches; 2-wire /
3-wire AC
proximity switches
NAMUR encoder Switches; 2-wire / 3-wire AC proximity
switches
Supports
isochronous mode
No No No No No
Programmable
diagnostics
No No No No No
Diagnostic interrupt No No Yes No No
Edge-triggered
hardware interrupt
No No No No No
Adjustable input
delays
No No No No No
Special features --- --- Module with single
channel
diagnostics and
extensive control
functions
--- ---
* This module is described in the ET 200M Signal Modules for Process Automation manual.
You can find the manual on the Internet
(http://support.automation.siemens.
com
/WW/view/en/7215812).
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