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Siemens SIMATIC S7-300 Module data Reference Manual

Siemens SIMATIC S7-300 Module data
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Digital Modules
3-39
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Technical specifications of the SM 321; DI 16 x 48-125 VDC
Dimensions and Weight
Dimensions W x H x D
(in millimeters)
40 x125 x120
Weight Approx. 200 g
Data for Specific Module
Supports clocked
operation
No
Number of inputs 16
Length of cable
Unshielded
Shielded
max. 600 m
max. 1000 m
Voltages, Currents, Potentials
Number of inputs that can be
triggered simultaneously at U
E
Up to 60 V
Up to 146 V
Horizontal installation
Up to 50 C
Up to 60 C
88
86
Vertical configuration
Up to 40 C 88
Isolation
Between channels and
backplane bus
Yes
Between the channels
In groups of
Yes
8
Permiss. potential differences
Between the different
circuits
146 VDC / 132 VAC
Insulation tested with 1500 VDC
Current consumption
From the backplane bus max. 40 mA
Power dissipation of the module typ. 4.3 W
Status, Interrupts, Diagnostics
Status display Green LED per channel
Interrupts None
Diagnostic functions None
Sensor Selection Data
Input voltage
Rated value 48 VDC to
125 VDC
For signal “1” 30 V to 146 V
For signal “0” –146 V to 15 V
Input current
At signal “1” typ. 3.5 mA
Input delay
From “ 0” to “1”
At “1” to “0”
0.1 ms to 3.5 ms
0.7 ms to 3.0 ms
Input characteristic curve According to
IEC 61131, type 1
Connection of Two-Wire
BEROs
Permitted bias current
Possible
max. 1 mA

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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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