SM 336 F analog input modules - Safety Integrated Siemens

Область применения



The modules are used centrally with SIMATIC S7-31xF-2 DP and in the ET 200M distributed I/O device together with SIMATIC IM 151-7 F-CPU, S7-31xF-2 DP, S7-416F-2 and S7-400F/FH.

0 to 20 mA and 4 to 20 mA current transmitters (also HART) can be connected as encoders.

Обзор


  • Analog inputs for the fail-safe SIMATIC S7 systems
  • Applicable in the ET 200M distributed I/O device with IM 153-2 HF as well as centrally with SIMATIC S7-31xF-2 DP
  • Properties of the SM 336; F-AI 6 x 0/4 - 20 mA HART:
    • 6 analog inputs with galvanic isolation between channels and backplane bus
    • Input ranges: 0 to 20 mA, 4 to 20 mA
    • Short-circuit proof power supply from 2 or 4-wire transducer via the module
    • External encoder supply possible
    • Applicable in safety mode
    • HART communication
    • Firmware update using HW Config
    • Identification data

Дизайн


  • 6 inputs for current measurement.
  • Compact design:
    • Group fault display (SF)
    • Safety mode display (SAFE)
    • Display for channel-specific faults (Fn)
    • Display for HART status (Hn)
    • Plug options for the 20-pin front connector, protected behind the front door.
    • Labeling field on the front door.
  • Easy assembly
    Assembled like the other ET 200M I/O modules.
  • User-friendly wiring with 20-pin front connector.

Функции



The analog input module converts analog signals from the process to digital signals for internal processing by the fail-safe SIMATIC S7 CPUs.

The safety functions required for fail-safe operation are integrated in the module.

The following functions are available:

  • Resolution 15 bits + sign.
  • Measuring ranges:
    • 0 to 20 mA or
    • 4 to 20 mA or
    • 4 to 20 mA (HART)
  • Interrupt capability;
    the module sends diagnostic interrupts to the CPU of the controller.
  • Diagnostics;
    the module sends extensive diagnostic information to the CPU.

Технические данные



Order number

6ES7336-4GE00-0AB0

SM 336, F.AI 6 X 0/4 ... 20MA HART

General information

 

Product type designation

SM 336 F-AI 6x0/4 to 20 mA HART

Supply voltage

 

Rated value (DC)

24 V

Reverse polarity protection

Yes

Input current

 

From power supply L+, typ.

150 mA

from backplane bus 5 V DC, max.

90 mA

Power loss

 

Power loss, typ.

4.5 W

Analog inputs

 

Number of analog inputs

6

permissible input current for current input (destruction limit), max.

40 mA

Input ranges (rated values), currents

 

  • 0 to 20 mA

Yes

  • 4 mA to 20 mA

Yes

Cable length

 

  • shielded, max.

1 000 m

Analog value generation for the inputs

 

Integration and conversion time/resolution per channel

 

  • Resolution with overrange (bit including sign), max.

16 bit; 15 bits + sign

  • Integration time (ms)

20 ms @ 50 Hz, 16.7 ms @ 60 Hz

  • Interference voltage suppression for interference frequency f1 in Hz

f=n x (f1+-0.5%)

Encoder

 

Connection of signal encoders

 

  • for current measurement as 2-wire transducer

Yes

  • for current measurement as 4-wire transducer

Yes

Errors/accuracies

 

Operational error limit in overall temperature range

 

  • Current, relative to input area, (+/-)

0.2 %; 40 µA

Basic error limit (operational limit at 25 °C)

 

  • Current, relative to input area, (+/-)

0.1 %

Interrupts/diagnostics/status information

 

Alarms

 

  • Diagnostic alarm

Yes

Diagnostic messages

 

  • Diagnostic information readable

Yes

Potential separation

 

Potential separation analog inputs

 

  • between the channels

Yes

  • between the channels and backplane bus

Yes

  • between the channels and the power supply of the electronics

Yes

Isolation

 

Isolation tested with

370V for 1 min

Standards, approvals, certificates

 

Highest safety class achievable in safety mode

 

  • acc. to EN 954

4

  • SIL acc. to IEC 61508

SIL 3

Connection method

 

required front connector

20-pin

Dimensions

 

Width

40 mm

Height

125 mm

Depth

120 mm

Weights

 

Weight, approx.

350 g