simatic s7-300 - megaelektrik.net

SIMATIC S7-300
Communication
CP 341
■ Overview
• For powerful, high-speed serial communication via point-topoint
links
• 3 versions with differ ent physical properties:
- RS 232C (V.24)
- 20 mA (TTY),
- RS 422/RS 485 (X.27)
• Implemented protocols: ASCII, 3964 (R), RK 512, customerspecific
protocols (reloadable)
• Simple parameterization via a parameterization tool integrated
into STEP 7
4
■ Technical specifications
6ES7 341-1AH01-0AE0 6ES7 341-1BH01-0AE0 6ES7 341-1CH01-0AE0
Supply voltages
Rated value
- 24 V DC Yes Yes Yes
Current consumption
• from backplane bus 5 V DC, max. 70 mA 70 mA 70 mA
• from supply voltage L+, max. 200 mA 200 mA 240 mA
• Power dissipation, max. 4.8 W 4.8 W 5.8 W
Interfaces
• Number 1; electrically isolated 1; electrically isolated 1; electrically isolated
• Physical interface, 20mA (TTY)
Yes
• Physical interface, RS 232C (V.24) Yes
• Physical interface, RS422/RS485
Yes
(X.27)
• Transmission rate, max. 76.8 kBit/s 19.2 kBit/s 76.8 kBit/s
• Transmission rate, min. 0.3 kBit/s 0.3 kBit/s 0.3 kBit/s
Connection system
•PtP 9-pin sub-D male connector 9-pin sub-D male connector 15-pin sub-D male connector
• Power supply 3 screw terminals: L+, M, GND 3 screw terminals: L+, M, GND 3 screw terminals: L+, M, GND
Point-to-point
• Length of cable, max. 15 m 1,000 m 1,200 m
Integral protocol driver
- 3964 (R) Yes Yes Yes; not with RS 485
-ASCII Yes Yes Yes
- Customer-specific drivers Yes Yes Yes
for later loading
- RK512 Yes Yes Yes; not with RS 485
Frame length, max.
- 3964 (R) 1,024 Byte 1,024 Byte 1,024 Byte
-ASCII 1,024 Byte 1,024 Byte 1,024 Byte
- RK512 1,024 Byte 1,024 Byte 1,024 Byte
Siemens ST 70 · 2005
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