SIEMENS SIPLUS S7-300 SM 326 – Safety Integrated Overview

OverviewSIPLUS S7-300 SM 326 - Safety Integrated

  • Digital inputs for the fail-safe SIPLUS S7 systems
  • For connecting:
    • Switches and 2-wire proximity switches
    • Sensors according to NAMUR and mechanical contacts, also for signals from hazardous areas
  • With integral safety functions for fail-safe operation
  • Can be used in fail-safe operation
    • Centrally: with S7-31xF-2 DP
    • Distributed in ET 200M: With SIMATIC IM 151-7 F-CPU, S7-31xF-2 DP, S7-416F-2 and S7-400F/FH
  • In standard operation can be used in the same way as S7-300 modules
Note:

SIPLUS extreme products are based on SIMATIC standard products. The contents listed here were taken from the respective standard products. SIPLUS extreme-specific information was added.

Fail-safe digital input modules are suitable for connecting

  • Switches and 2-wire proximity switches (BEROs)
  • Sensors according to NAMUR and mechanical contacts, also for signals from hazardous areas

The modules are implemented centrally with SIMATIC S7-31xF-2 DP and in the ET 200M distributed I/O station in combination with SIMATIC IM 151-7 F-CPU, S7-31xF-2 DP, S7-416F-2 and S7-400F/FH. They can also be used in non-safety-relevant standard mode and then respond like standard S7-300 modules.

Ordering data
Product No. / Product Description Listprice / Your price
6AG1326-1BK02-2AB0
SIPLUS S7-300 SM326F DI24 40PIN -25 … +60 DEGREES C 70 DEG C WITH FORCED CONVECTION WITH CONFORMAL COATING BASED ON 6ES7326-1BK02-0AB0 . DIGITAL INPUT F-DI 24 X DC 24V, FAILSAFE DIGITAL INPUTS FOR SIMATIC S7 FAILSAFE SYSTEMS WITH DIAGNOST. INTERRUPT
6AG1326-1BK02-2AY0
SIPLUS S7-300 SM326F DI24 WITH CONFORMAL COATING CONFORMITY ACCORDING EN50155 T1 CAT 1 CL A/B BASED ON 6ES7326-1BK02-0AB0 . DIGITAL INPUT FAILSAFE DIGITAL INPUTS FOR SIMATIC S7 FAILSAFE SYSTEMS WITH DIAGNOST. INTERRUPT, 1 X 40 PIN
6AG1326-1RF01-4AB0
SIPLUS S7-300 SM326F DI8 NAMUR FOR MEDIAL STRESS WITH CONFORMAL COATING BASED ON 6ES7326-1RF01-0AB0 . DIGITAL INPUT SM 326, 8 DI; DC 24V, NAMUR, FAILSAFE NAMUR INPUTS FOR SIMATIC S7 F SYSTEMS, UP TO CATEGORY 4 (EN954-1)/ SIL3 (IEC61508)/PLE (ISO13849), 1 X 40 PIN
Design

Failsafe digital input modules have the following mechanical features:

  • Compact configuration:
    The rugged plastic housing contains

    • Green input signal status LEDs
    • Green LED for indicating safety mode
    • Red group fault LED
    • Slot for front connector protected by the front cover
    • Labeling area on the front cover
  • Easy installation:
    Installed in the same way as the other ET 200M I/O modules
  • User-friendly wiring via front connector

Note:

Cable guide 6ES7 393-4AA10-0AA0 is required in order to operate 6ES7 326-1RF00-0AB0 failsafe digital input modules in hazardous areas.

Function

Failsafe digital input modules convert the levels of the external digital signals from the process into the internal signal level of the failsafe SIMATIC S7 CPUs.

The safety functions required for failsafe operation are integrated in the modules.

Technical specifications

Article number

6AG1326-1BK02-2AB0

6AG1326-1BK02-2AY0

6AG1326-1RF01-4AB0

SIPLUS S7-300 SM326F DI24

SIPLUS S7-300 SM326F DI24

SIPLUS S7-300 SM326F DI8 NAMUR

Supply voltage

Rated value (DC)

24 V

24 V; A power supply according to EN 50155 shall be used

Input current

from load voltage L+ (without load), max.

450 mA

450 mA

160 mA

from backplane bus 5 V DC, max.

100 mA

100 mA

90 mA

Encoder supply

Number of outputs

4; Isolated

4; Isolated

8

Type of output voltage

8.2 V DC

Output current

  • ● Rated value

400 mA

400 mA

Power loss

Power loss, typ.

10 W

10 W

4.5 W

Digital inputs

Number of digital inputs

24

24

8

Number of simultaneously controllable inputs

all mounting positions

  • — up to 40 °C, max.

24

24

8

  • — up to 60 °C, max.

24; (at 24 V) or 18 (at 28.8 V)

24; (at 24 V) or 18 (at 28.8 V)

8

Input voltage

  • ● Type of input voltage

DC

DC

  • ● Rated value (DC)

24 V

24 V

  • ● for signal “0”

-30 to +5V

-28.8 … +5V

  • ● for signal “1”

+11 to +30V

+11 to +28.8V

Input current

  • ● for signal “0”, max. (permissible quiescent current)

2 mA

2 mA

0.35 to 1.2 mA

  • ● for signal “1”, typ.

10 mA

10 mA

2.1 to 7 mA

Input delay (for rated value of input voltage)

for standard inputs

  • — at “0” to “1”, max.

3.4 ms

3.4 ms

  • — at “1” to “0”, max.

3.4 ms

3.4 ms

for NAMUR inputs

  • — at “0” to “1”, max.

1.2 to 3 ms

  • — at “1” to “0”, max.

1.2 to 3 ms

Cable length

  • ● shielded, max.

200 m

200 m

200 m

  • ● unshielded, max.

100 m

100 m

100 m

Encoder

Connectable encoders

  • ● 2-wire sensor

Yes; if short-circuit test is deactivated

Yes; if short-circuit test is deactivated

  • — permissible quiescent current (2-wire sensor), max.

2 mA

2 mA

Interrupts/diagnostics/status information

Diagnostic functions

Yes

Yes

Alarms

  • ● Diagnostic alarm

Yes

Yes

Yes; Parameterizable

Diagnostic messages

  • ● Diagnostic information readable

Yes

Yes

Diagnostics indication LED

  • ● Fail-safe operation

Yes

Yes

Yes

  • ● Group error SF (red)

Yes

Yes

Yes

Ex(i) characteristics

Module for Ex(i) protection

Yes

Maximum values of input circuits (per channel)

  • ● Co (permissible external capacity), max.

3 µF

  • ● Io (short-circuit current), max.

13.9 mA

  • ● Lo (permissible external inductivity), max.

80 mH

  • ● Po (power of load), max.

33.1 mW

  • ● Uo (output no-load voltage), max.

10 V

  • ● Um (fault voltage), max.

60 V DC/30 V AC

  • ● Ta (permissible ambient temperature), max.

60 °C

60 °C; = Tmax; the rated temperature range of -25 … +55 °C (T1) applies for the use on railway vehicles according to EN50155

60 °C

Potential separation

Potential separation digital inputs

  • ● between the channels

Yes

Yes

Yes

  • ● between the channels, in groups of

12

12

  • ● between the channels and backplane bus

Yes

Yes

Yes

  • ● between the channels and the power supply of the electronics

Yes

Isolation

Isolation tested with

500 V DC/350 V AC

500V AC for 1 min (internal voltage limiting to ±120V)

tested with

  • ● Channels against backplane bus and load voltage L+

1500 V AC

  • ● Channels among one another

1500 V AC

  • ● Load voltage L+ against backplane bus

500 V DC/350 V AC

Standards, approvals, certificates

CE mark

Yes

Yes

Yes

UL approval

Yes; File E239877

Yes; File E239877

FM approval

Yes; CofC 3028431

Yes; CofC 3028431

RCM (formerly C-TICK)

Yes

KC approval

Yes

EAC (formerly Gost-R)

Yes

Railway application

  • ● EN 50155

Yes; Sections 4, 5 and 12; no further agreements apply; T1, Category 1, Class A/B

Highest safety class achievable in safety mode

  • ● acc. to DIN VDE 0801

AK 6

AK 6

  • ● acc. to EN 954

Cat. 4

Cat. 4

Cat. 4

  • ● SIL acc. to IEC 61508

SIL 3

SIL 3

SIL 2 (single-channel), SIL 3 (two-channel)

Ambient conditions

Ambient temperature during operation

  • ● min.

-25 °C; = Tmin

-25 °C; = Tmin

0 °C; = Tmin

  • ● max.

60 °C; = Tmax; *+70 °C where forced convection with a minimum air velocity of 0.7 m/s through the modules and rated voltage of 24 V ±5 % are ensured. If in the course of maintenance or automatic diagnosis it is determined that the admissible specified parameters have been exceeded, the modules should be subjected to a proof test (function check) by the manufacturer.

60 °C; = Tmax; the rated temperature range of -25 … +55 °C (T1) applies for the use on railway vehicles according to EN50155

60 °C; = Tmax

Altitude during operation relating to sea level

  • ● Ambient air temperature-barometric pressure-altitude

Tmin … Tmax at 1080 hPa … 795 hPa (-1000 m … +2000 m)

Tmin … Tmax at 1080 hPa … 795 hPa (-1000 m … +2000 m)

Tmin … Tmax at 1080 hPa … 795 hPa (-1000 m … +2000 m)

Relative humidity

  • ● With condensation, tested in accordance with IEC 60068-2-38, max.

100 %; RH incl. condensation/frost (no commissioning under condensation conditions)

100 %; RH incl. condensation/frost (no commissioning under condensation conditions)

Resistance

Use in stationary industrial systems

  • — to biologically active substances according to EN 60721-3-3

Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna); Class 3B3 on request

Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna); Class 3B3 on request

  • — to chemically active substances according to EN 60721-3-3

Yes; Class 3C4 (RH < 75%) incl. salt spray according to EN 60068-2-52 (degree of severity 3). The supplied connector covers must remain on the unused interfaces during operation!

Yes; Class 3C4 (RH < 75%) incl. salt spray according to EN 60068-2-52 (degree of severity 3). The supplied connector covers must remain on the unused interfaces during operation!

  • — to mechanically active substances according to EN 60721-3-3

Yes; Class 3S4 incl. sand, dust. The supplied connector covers must remain on the unused interfaces during operation!

Yes; Class 3S4 incl. sand, dust. The supplied connector covers must remain on the unused interfaces during operation!

Connection method

required front connector

40-pin

40-pin

1x 40-pin

Dimensions

Width

80 mm

80 mm

80 mm

Height

125 mm

125 mm

125 mm

Depth

120 mm

120 mm

120 mm

Weights

Weight, approx.

442 g

442 g

482 g