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Siemens SIMATIC S7-300 Module data Reference Manual

Siemens SIMATIC S7-300 Module data
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Digital Modules
3-77
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
3.23.2 Behavior and Diagnostics of the SM 322; DO 8 x 24 VDC/0.5 A
Effect of operating and mode supply voltage on the output values
The output values of the SM 322; DO 8 x 24 VDC/0.5 A depend on the operating
mode of the CPU and on the supply voltage of the module.
Table 3-19 Dependence of the output values on the operating mode of the CPU and on the
supply voltage L+ of the SM 322; DO 8 x 24 VDC/0.5 A.
CPU Operating State Power Supply L+ to Digital
Module
Output Value of Digital
Module
POWER ON RUN L+ exists CPU value
L+ missing 0 signal
STOP L+ exists Substitute value/last value
(0 signal preset)
L+ missing 0 signal
POWER
OFF
L+ exists 0 signal
OFF
L+ missing 0 signal
Behavior upon failure of the supply voltage
Failure of the supply voltage of the SM 322; DO 8 x 24 VDC/0.5 A is always
indicated by the SF LED on the module. Furthermore, this information is made
available on the module (entry in diagnosis).
Triggering of the diagnostic interrupt depends on the parameter assignment
(see Section 3.23.3).

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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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