Siemens X204-2FM - Page 75

Technical specifications
SCALANCE X-200
Operating Instructions, 03/2015, C79000-G8976-C284-06
75
Type
Operating temperature
Storage/transport temper-
ature
Rel. humidity in
operation (no con-
densation)
Operating altitude at max. xx
°C ambient temperature
XF208
-40 °C to +60 ℃
*)
-40 °C to +70 ℃ ‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
X200-4P IRT
-25 ℃ to +40 ℃ -40 ℃ to +70 ℃ ‹ 95 % 2000 m at max. 35 ℃
3000 m at max. 30 ℃
X201-3P IRT
-25 ℃ to +50 ℃ -40 ℃ to +70 ℃ ‹ 95 % 2000 m at max. 45 ℃
3000 m at max. 40 ℃
X201-3P IRT PRO
-25 ℃ to +60 ℃ -40 °C to +70 ℃ ‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
X202-2IRT
-40 °C to +60 ℃ -40 ℃ to +70 ℃ ‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
X202-2P IRT
-25 ℃ to +60 ℃ -40 ℃ to +70 ℃ ‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
X202-2P IRT PRO
-25 ℃ to +60 ℃ -40 °C to +70 ℃ ‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
X204IRT
-40 °C to +70 ℃ -40 °C to +70 ℃ ‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
X204IRT PRO
-25 ℃ to +70 ℃ -40 ℃ to +70 ℃ ‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
XF204IRT
-40 °C to +60 ℃
*)
-40 °C to +70 ℃ ‹ 95 % 2000 m at max. 56 ℃
3000 m at max. 50 ℃
*)
Note the information on the mounting position above.
Frame delay times
The number of IE Switches X-200 connected in a line influences the frame delay.
Note
Frame delay time with X-200 without IRT
When a frame passes through X
-200 IE switches, it is delayed by the Store&Forward
function of the X
-200 IE switches.
•
With a 64 byte frame length by approx. 10 microseconds (at 100 Mbps).
•
With a 1500 byte frame length by approx. 130 microseconds (at 100 Mbps).
This means that the more X
-
200 IE switches the frame passes through, the longer the frame
delay.
Note
Frame delay time with X-200 with IRT
The more X
-200IRT IE switches a frame runs through, the higher the frame delay. By using
the "cut through" switching mechanism, the X
-200IRT IE switches are ideal to meet the real-
time requirements of PROFINET.
Cut through is, however, not possible:
•
Between a port set to 10 Mbps and a port set to 100 Mbps.
•
When two packets are to be sent at the same time on one port.
In this case, an X-200 IE switch changes to Store&Forward and the delay increases.