SIEMENS S7-300 SM 336 F analog input modules – Safety Integrated

SM 336 F analog input modules – Safety IntegratedSM 336 F analog input modules - Safety Integrated

  • 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
Product No. / Product Description Listprice / Your price
6ES7336-4GE00-0AB0
SIMATIC S7, ANALOG INPUT SM336 6 AI; 15 BIT; FAILSAFE ANALOG INPUTS FOR SIMATIC SAFETY, WITH HART SUPPORT, UP TO CATEGORY 4 (EN954-1)/ SIL3 (IEC61508)/PLE (ISO13849), 1 X 20 PIN,

Application

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.


Design

  • 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.

Function

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.

Technical specifications

Article number

6ES7336-4GE00-0AB0

SM 336, F.AI 6 X 0/4 … 20MA 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

  • ● Voltage

No

  • ● Current

Yes

Input ranges (rated values), currents

  • ● 0 to 20 mA

Yes

  • ● Input resistance (0 to 20 mA)

150 Ω; typ. 150 ohms max. 175 ohms

  • ● 4 mA to 20 mA

Yes

  • ● Input resistance (4 mA to 20 mA)

150 Ω; typ. 150 ohms max. 175 ohms

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 bit + 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 range, (+/-)

0.2 %; 40 µA

Basic error limit (operational limit at 25 °C)

  • ● Current, relative to input range, (+/-)

0.1 %

Interrupts/diagnostics/status information

Diagnostic functions

Yes

Alarms

  • ● Diagnostic alarm

Yes

Diagnostic messages

  • ● Diagnostic information readable

Yes

Diagnostics indication LED

  • ● Fail-safe operation

Yes

  • ● Group error SF (red)

Yes

  • ● Encoder supply Vs (green)

No

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