Technical data

26 Device Description WAGO-I/O-SYSTEM 750
750-652 Serial Interface RS-232 / RS-485
Manual
Version 1.3.0
3.6.4 Interface
Table 12: Technical Data – Interface
Number of interfaces
1
Input resistance of the receiver
RS-485/RS-422
24 kΩ (1/2 Unit Load)
Defined receiver state with short-
circuited or isolated inputs (true file-
safe)
Isolation
500 V system/supply
3.6.5 Climatic Environmental Conditions
Table 13: Technical Data – Climatic Environmental Conditions
Operating temperature range
0 °C … 55 °C
Operating temperature range for
components with extended
temperature range (750-xxx/025-xxx)
-20 °C … +60 °C
Storage temperature range
-25 °C … +85 °C
Storage temperature range for
components with extended
temperature range (750-xxx/025-xxx)
-40 °C … +85 °C
Relative humidity
Max. 5 % … 95 % without condensation
Resistance to harmful substances
Acc. to IEC 60068-2-42 and
IEC 60068-2-43
Maximum pollutant concentration at
relative humidity < 75 %
SO
2
≤ 25 ppm
H
2
S ≤ 10 ppm
Special conditions
Ensure that additional measures for
components are taken, which are used in
an environment involving:
– dust, caustic vapors or gases
– ionizing radiation