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Siemens SIMATIC S7-300 Module data Reference Manual

Siemens SIMATIC S7-300 Module data
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Digital Modules
3-37
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Technical specifications of the SM 321; DI 16 x 24/48 VUC
Dimensions and Weight
Dimensions W x H x D 40 x 125 x 117
Weight Approx. 260 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
Horizontal configuration
Up to 60°C
16
All other configuration types
Up to 40° C
16
Isolation
Between channels and
backplane bus
Yes
Between channels
In groups of
Yes
1
Permitted potential difference
Between the channels and
the backplane bus
170 VDC, 120 VAC
Between the inputs of the
different groups
170 VDC, 120 VAC
Insulation tested with
Between the channels and
the backplane bus
1500 VAC
Between the inputs of the
different groups
1500 VAC
Current consumption
From the backplane bus max. 100 mA
Power dissipation of the module
Operation with 24 V
Operation with 48 V
typ. 1.5 W
typ. 2.8 W
Status, Interrupts, Diagnostics
Status display
Interrupts
Diagnostic functions
Green LEDs per
channel
None
None
Data for Selecting a Sensor
Input voltage
Rated value 24 or 48 VDC/ 24 or
48 VAC
At signal “1”
At signal “0”
Frequency range
14 V to 60 V
–5 V to 5 V
0 to 63 Hz
Input current
At signal “1”
At signal “0”
typ. 2.7 mA
–1 to +1 mA
Input delay
From “ 0” to “1”
At “1” to “0”
max. 16 ms
max. 16 ms
Input characteristic curve According to
IEC 61131, type 1
Connection of Two-Wire
BEROs
Possible
Permitted bias current 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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