Siemens S7-1200 - CM 1243-5 PROFIBUS DP Master

Technical specifications
A.14 Communication interfaces
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
965
Technical specifications
Weight
• Net weight
• Weight including packaging
• 115 g
• 152 g
*
)
The current load of an external consumer connected between VP (pin 6) and DGND (pin 5) must not exceed a maximum
of 15 mA (short-circuit proof) for bus termination.
PROFIBUS interface
Table A- 240 Pinout of the D-sub socket
Pin
Description
Pin
Description
1
- not used -
6
P5V2: +5V power supply
2
- not used -
7
- not used -
3
RxD/TxD-P: Data line B
8
RxD/TxD-N: Data line A
4
RTS
9
- not used -
5 M5V2: Data reference potential
(ground DGND)
Housing Ground connector
A.14.1.2
CM 1243-5 PROFIBUS DP Master
Table A- 241 Technical specifications of the CM 1243-5
Technical specifications
Order number
6GK7 243-5DX30-0XE0
Interfaces
Connection to PROFIBUS
9-pin D-sub female connector
Maximum current consumption on the PROFIBUS interface
when connecting network components (for example optical
network components)
15 mA at 5 V (only for bus termination) *
)
Permitted ambient conditions
Ambient temperature
• during storage
• during transportation
• during operation with a vertical installation (DIN rail
horizontal)
• during operation with a horizontal installation (DIN rail
vertical)
• -40 °C to 70 °C
• -40 °C to 70 °C
• 0 °C to 55 °C
• 0 °C to 45 °C
Relative humidity at 25 °C during operation, without
condensation, maximum
95 %
Degree of protection
IP20
Power supply, current consumption and power loss
Type of power supply
DC