Analog modules
6.17 Analog IO module SM 334; AI 4/AO 2 x 12 bit; (6ES7334-0KE00-0AB0)
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
491
Options of wiring the input channels
You can wire the input channels of SM 334; AI 4/AO 2 x 12 Bit in the following combinations:
Channels 0 and 1
• 2 x temperature or
• 2 x resistance
Channels 2 and 3
• 2 x voltage,
• 2 x resistance,
• 2 x temperature,
• 1 x temperature and 1 x voltage, or
• 1 x resistance and 1 x voltage
Note
Wiring both a temperature sensor and a resistor to channels 0 and 1 or 2 and 3 is not
allowed.
Reason: Common current source for both channels.
Measuring ranges
Program the measuring ranges in
STEP 7
.
Table 6- 41 Measurement types and ranges
Selected type of measurement
R-4L: resistance (4-wire connection)
RTD-4L: Thermoresistor
(linear, 4-wire connection)
(temperature measurement)
Pt 100 Klima
Output ranges of SM 334; AI 4/ AO 2 x 12 bit
The "voltage" output type and "0 V to 10 V" output range are set by default at the module.
You can always use this combination of the output type and range without having to program
the SM 334; AO 4 x 2 Bit in
STEP 7
.
Table 6- 42 Output ranges
See also
Representation of analog values for analog output channels (Page 279)