Siemens Simatic S7-300 - Module Overview; Table 3-1 Digital Input Modules

Digital modules
3.1 Module overview
S7-300 Automation System Module data
3-2 Manual, 08/2006, A5E00105505-04
3.1 3.1 Module overview
Introduction
The tables below summarize the essential properties of the digital modules. This overview
supports you in selecting a module to suit your requirements.
Overview of properties
The table below shows essential properties of the digital input modules
Table 3-1 Digital input modules:
Module
Properties
SM 321;
DI 32 x
DC 24 V
(-1BL00-)
SM 321;
DI 32 x
AC 120 V
(-1EL00-)
SM 321;
DI 16 x
DC 24 V
(-1BH02-)
SM 321;
DI 16 x DC 24 V
High Speed
(-1BH10-)
SM 321;
DI 16 x
DC 24 V with
process and
diagnostic
interrupt
(-7BH01-)
SM 321;
DI 16 x
DC 24 V;
source input
(-1BH50-)
Number of inputs 32 DI;
electrically
isolated in
groups of 16
32 DI;
electrically
isolated in
groups of 8
16 DI;
electrically
isolated in
groups of 16
16 DI;
electrically
isolated in
groups of 16
16 DI; electrically
isolated in groups
of 16
16 DI,
source input,
electrically
isolated in
groups of 16
Rated input voltage 24 VDC 120 VAC 24 VDC 24 VDC 24 VDC 24 VDC
Suitable for... Switches;
2-wire, 3-wire and 4-wire proximity switches (BEROs)
Isochronous mode
supported
No No No Yes Yes No
Programmable
diagnostics function
No No No No Yes No
Diagnostic interrupt No No No No Yes No
Edge-triggered
hardware interrupt
No No No No Yes No
Adjustable input
delay times
No No No No Yes No
Special features - - - - 2 short circuit-
proof encoder
supplies per 8
channels;
external
redundant supply
of encoders is
supported
-