simatic s7-300 - megaelektrik.net

SIMATIC S7-300
Communication
CP 343-1 IT
■ Overview
4
• Connection of SIMATIC S7-300 to Industrial Ethernet
- 10/100 Mbit/s full/half duplex connection with autosensing
- Connection via RJ45
- Multi-protocol operation for TCP/IP and UDP
- Adjustable Keep Alive function
• Communication services:
- TCP/IP und UDP transport protocol
Multicast for UDP
- Programming device/operator panel communication:
Network-wide PG/OP communication through S7 Routing
- S7 communication
- S5-compatible communication
- IT communication:
HTTP communication supports access to process data
through Web browsers;
FTP communication supports program-controlled FTP client
communication,
Access to data blocks through FTP server,
Data handling for own file system through FTP,
E-mail
• IP address assignment via DHCP, simple PC tool or via
program block per HMI (in exclusive server mode)
• IP address-based access protection
• Remote programming and init ial startup via the network
• Clock synchronization of the CPU via NTP or SIMATIC
procedure
• Integration into network ma nagement systems through the
support of SNMP V1 MIB-II
■ Technical specifications
Data transmission rate
10/100 Mbit/s autosensing
Interfaces
• 10BaseT, 100BaseTX
RJ45
• Connection for power supply 2-pin terminal block
Power supply
+5 V DC (±5%) and
+24 V DC (±5%)
Current consumption
• From backplane bus
200 mA
• From 24 V DC external
Max. 200 mA
Power loss
6 W
Perm. ambient conditions
• Operating temperature 0 °C to +60 °C
• Transport/storage temperature –40 °C to +70 °C
• Relative humidity Max. 95% at +25 °C
Construction
• Module format
Compact module S7-300,
double width
• Dimensions (WxHxD) in mm 80 x 125 x 120
• Weight
Approx. 600 g
Configuring software
NCM S7 for Industrial Ethernet
(supplied with STEP 7 V5.x)
Performance data
IT communication
Number of connections
Max. 1
to an e-mail server
Memory capacity
• Flash Memory file system
30 MB
• RAM memory
30 MB
Service life of the Flash Memory 70.000 write cycles
cells
S5-compatible communication
(SEND/RECEIVE)
• Sum of all simultaneously operable Max. 16
TCP/UDP connections
• Useful data
-TCP
Max. 8 KB
- UDP Max. 2 KB
- E-mail: Max. 2 KB
S7 communication
• Number of connections 1) Max. 16
Programming device/operator
panel communication
• Number of operable OP connections
(non-isochrone
Max. 16
services)
FTP communication
• Number of client connections Max. 10
• Number of server connections Max. 2
HTTP communication
• Number of connections Max. 4
Multi-protocol operation
• Sum of all simultaneously operable
connections
Max. 48
1) Use depends on performance of S7-CPU used.
4/152 Siemens ST 70 · 2005