Siemens S7-300 Installation And Operating Manual page 266

Analog modules
9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART
Sensor supply output

Output voltage

Output current


Additional (redundant) infeed
Short-circuit protection


Shutdown at input
Sensor selection data
Input range (rated values)/input resistance

Permitted input current for current input
(destruction limit)
Safeguarding against short circuit in case of
external sensor supply
Signal sensor connection
For current measurement


HART communication
Monodrop/multidrop operation
Primary/secondary master
Impedance of an input channel for HART
communication.
Functional range of HART Communication
HART shutdown threshold
Protocol version
Protection against overvoltage
Protection of supply voltage L+ from surge stress according to IEC 61000-4-5
Up to degree of severity 2


266
Number of outputs
Loaded
Rated value
Approved range
Operating value
Permitted aggregate current of outputs
Current
As 4-wire transducer
As 2-wire transducer
Symmetrical (L+ to M)
Asymmetrical (L+ to PE, M to PE)
Technical data
6
Minimum L+ (-0.5 V)
300 mA
0 to 300 mA
With external additional elements, see wiring
schemes
Yes, electronic
Typ. 1 A
1.8 A
Typ. 35 mA
Typ. 150 Ω
Max. 175 Ω
Max. 40 mA
e.g., melting fuse 62 mA FF
Possible
Possible
Monodrop operation
Primary or secondary master *
100 – 150 Ω
For operation with an external secondary
master (e.g. communicator), an external load
may be necessary to achieve a total impedance
of 230 – 600 Ω.
1.17 to typ. 35 mA
1.17 mA
5 to 6
No external protective elements required
± 0.5 kV; 1.2/50 μs
± 1 kV; 1.2/50 μs
Installation and Operating Manual, 01/2010, A5E00085586-10
Fail-safe signal modules