simatic s7-300 - megaelektrik.net

SIMATIC S7-300
Communication
CP 343-5
■ Overview
4
Master connection of SIMATIC S7-300 and SIMATIC C7 to
PROFIBUS up to 12 Mbit/s (incl. 45.45 Kbit/s)
• Communication services:
- PG/OP communication
- S7 communication
- S5-compatible communication (SEND/RECEIVE)
- PROFIBUS FMS
• Simple configuration and programming using PROFIBUS
• Easily integrated into the S7-300 system
• PG communication between networks through S7 routing
• Module changeover without PG
■ Technical specifications
Data transmission rate
9.6 kbit/s to 12 Mbit/s
Interfaces
• Connection to PROFIBUS 9-pin Sub-D socket (RS 485)
• Connection to supply voltage 4-pin terminal block
Power supply
24 V DC
Current consumption
• From backplane bus
150 mA
• from 24 V
250 mA
Power loss
6.75 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
• Dimensions (WxHxD) in mm 40 x 125 x 120
• Weight
Approx. 300 g
Number of CPs per S7-300 4
Performance data for S7 communication
• Number of connections that can
be used
Performance data for S5-compatible
interface (SEND/RECEIVE)
• Number of connections that can
be used
• Useful data / connection
max. 16 1)
max. 16
Performance data
for FMS function
• Number of connections that can Max. 16
be used
Variable length for READ
237 bytes
Variable length for
233 bytes
WRITE and REPORT
Configurable server variables 256
Variables that can be loaded from 256
partners
Multi-protocol operation
• Number of connections
Max. 48
that can be used
max. 240 bytes
(SEND and RECEIVE)
1) Dependent on the CPU used
4/146 Siemens ST 70 · 2005