Siemens SIMATIC S7-300 Module data User Manual

Glossary
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
Glossary-5
Interface, multi-point
→ MPI
Interrupt
SIMATIC S7 knows 28 different priority classes which control user program execution. Those
priority classes also include hardware interrupts, for example. When an interrupt is
generated, the operating system automatically calls an assigned OB which the user can
program to trigger a specific action (at an FB for example.)
Interrupt, diagnostics
Diagnostics interrupt
Interrupt, end of cycle
→ hardware interrupt
Interrupt, hardware
→ hardware interrupt
Linearity error
Denotes the maximum deviation of the measured/output value from the ideal linear
relationship between the measured/output signal and the digital value. Defined as a
percentage, relative to the rated range of the analog module.
Logic block
A SIMATIC S7 logic block contains elements of the STEP 7 user program. In contrast, a
data block only contains data. Available logic blocks: Organization Blocks (OBs), Function
Blocks (FBs), Functions (FCs), System Function Blocks (SFBs), System Functions (SFCs).
Measuring range module
Modules installed on analog input modules for the adaptation to different measuring ranges.
Mode of operation
Definition of this term:
1. selection of a CPU operating state using the mode selector switch or a PG
2. the type of program execution at the CPU
3. an analog input module parameter in
STEP 7

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)