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Siemens SIMATIC S7-300 Module data Reference Manual

Siemens SIMATIC S7-300 Module data
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Digital Modules
3-38
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
3.12 Digital Input Module SM 321; DI 16 x VDC 48-125;
(6ES7321-1CH20-0AA0)
Order number: “Standard module”
6ES7321-1CH20-0AA0
Order number: “SIPLUS S7-300-Module”
6AG1321-1CH20-2AA0
Characteristics
The SM 321; DI 16 x 48-125 VDC features the following characteristics:
16 inputs, isolated in groups of 8
Rated input voltage 48 to 125 VDC
Suitable for switches and two / three / four-wire BEROs (proximity switches).
Terminal assignment and block diagram of the SM 321; DI 16 x 48-125 VDC
Status display – green
Channel number
Backplane bus
interface
M
2M
48 to 125 V
M
1M
48 to 125 V
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
Figure 3-12 Module View and Block Diagram of SM 321; DI 16 x 48-125 VDC

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Siemens SIMATIC S7-300 Module data Specifications

General IconGeneral
SeriesS7-300
ManufacturerSiemens
Protection ClassIP20
SystemSIMATIC S7-300
Digital InputsVaries by module
Digital OutputsVaries by module
Analog InputsVaries by module
Analog OutputsVaries by module
Central Processing UnitVaries by CPU model
Supply Voltage24V DC or 120/230V AC
CPU TypeVaries (e.g., CPU 312, CPU 315, etc.)
MemoryVaries by CPU model
Communication InterfacesMPI, PROFIBUS
Programming LanguagesLAD, FBD, STL, SCL, GRAPH
Operating Temperature0°C to 60°C
Storage Temperature-40°C to 70°C
Relative Humidity10% to 95% (non-condensing)

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