Siemens CM 1243-5 - Technical specifications; CM 1243-5 specifications

CM 1243-5
Operating Instructions, 04/2011, C79000-G8976-C246-01
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Technical specifications
6
Table 6- 1 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 ... 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
Power supply / external
 minimum
 maximum
24 V
 19.2 V
 28.8 V
Current consumption (typical)
 from 24 V DC
 from the S7-1200 backplane bus
 100 mA
 0 mA
Effective power loss (typical)
 from 24 V DC
 from the S7-1200 backplane bus
 2.4 W
 0 W
Power supply 24 VDC / external
 Min. cable cross section
 Max. cable cross section
 Tightening torque of the screw terminals
 min.: 0.14 mm
2
(AWG 25)
 max.: 1.5 mm
2
(AWG 15)
 0.45 Nm (4 lb-in)