Siemens SIMATIC S7-300 Module data User Manual

S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
9-1
RS 485 Repeater
9
This chapter
This chapter describes the RS 485 Repeater in detail.
This includes:
● the purpose of the RS 485 Repeater
● The maximum cable lengths between two RS 485 Repeaters
● functions of the various operating elements and terminals
● information about grounded and nongrounded operation
● technical data and the block diagram
Further information
For further information on the RS 485 Repeater, refer to the chapter "Configuring an MPI or
PROFIBUS DP network" in the CPU Data, Installation manual.
Diagnostic Repeater
Compared to the RS 485 repeater, the Diagnostic Repeater has new characteristics:
Diagnostic function and modeling as the DP slave. For further information, refer to the
Diagnostics Repeater for PROFIBUS DP manual on the Internet at this address:
http://support.automation.siemens.com/WW/view/de/7915183

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)