Siemens SIMATIC NET S7-300 User Manual

A Pinout
A-286
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
A.3 Connector for Industrial Ethernet
Pinning - 15-Pin Sub-D Female Connector
Pin No. Signal Name Function
1 MEXT External ground, shield
2 CLSN Collision +
3 TRMT / TPETXD Transmit + / TPE Transmit Data +
4 Ground Ground 5 V
5 RCV / TPERXD Receive + / TPE Receive Data +
6 M 15 V Ground 15 V
7 TPE_SEL Switchover AUI/ITP
8 Ground Ground 5 V
9 CLSN_N Collision -
10 TRMT_N / TPEXTXD_N Transmit - / TPE Transmit Data -
11 Ground Ground 5 V
12 RCV_N / TPERXD_N Receive - / TPE Receive Data -
13 P15 V +15 V
14 Ground Ground 5 V
15 - -
The pin assignment complies with IEEE 802.3 AUI interface.
The signals TPETXD / TPETXD_N and TPERXD / TPERXD_N form the ITP
interface.
A.4 Connector for PROFIBUS
9-pin D-sub female connector for PROFIBUS (used with IE/PB Link)
Pin No. Signal Name PROFIBUS
Designation
Used in
RS485
1 PE Protective earth yes
2 - - -
3 RxD/TxD-P Data line B yes
4 RTS (AG) Control-A -
5 M5V2 Data reference
potential
yes
6 P5V2 Power supply
plus
yes
7 BATT - -
8 RxD/TxD-N Data line-A yes
9 - - -

Siemens SIMATIC NET S7-300 Specifications

General

Product Type Designation	SIMATIC NET S7-300
Mounting	DIN rail mounting
Protection Class	IP20
CPU Models	Various models available (e.g., CPU 312, CPU 314)
Communication Interfaces	MPI, PROFIBUS DP
Power Supply	24 V DC power supply required. Different power supply modules available.
I/O Modules	Digital input modules, digital output modules, analog input modules, analog output modules
Programming	STEP 7 software
Supply Voltage	24V DC or 120/230V AC (depending on model)
Digital Inputs	Available via digital input modules
Digital Outputs	Available via digital output modules
Analog Inputs	Available via analog input modules
Analog Outputs	Available via analog output modules
Communication Functions	MPI, PROFIBUS DP, Ethernet (depending on model)
Protocols	MPI, PROFIBUS DP, TCP/IP (depending on model)
Operating Temperature	0°C to 60°C
Storage Temperature	70 °C
Memory	Depends on CPU model (e.g., 32 KB to 1.5 MB)