Siemens SIMATIC S7-300 Module data User Manual

Glossary
S7-300 Automation System Module data
Glossary-6 Manual, 08/2006, A5E00105505-04
Monoflop time
STEP 7 parameter for the SM 338; POS-INPUT position detection module. The monoflop
time is equivalent to interval between two SSI message frames ( → Absolute encoder.)
MPI
Multi-Point Interface. SIMATIC S7 interface for programming devices. Allows central access
to remote programmable modules (CPUs, CPs), Text Displays und Operator Panels. MPI
nodes can intercommunicate.
Noise suppression
STEP 7 parameter for analog input modules. The frequency of AC mains may corrupt
measured values, in particular in the low voltage ranges, and when thermocouples are being
used. At this parameter, the user defines the mains frequency prevailing on his system.
OB
→ Organization Block
Operating state
Operating states known to SIMATIC S7 automation systems: STOP, → STARTUP, RUN and
STOP.
Operational limit
Represents the measuring/output error of an analog module across the entire permissible
temperature range, based on the module's rating.
Organization block
OBs form the interface between the CPU operating system and the user program. The
sequential order of user program execution is defined in the organization blocks.
Parameter
1. Tag of a → Code block
2. Tag used to set one or several properties of a module. Each module is supplied with
default parameters which users may edit in
STEP 7 .
PG
→ Programming device

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)