SIEMENS SIPLUS S7-300 SM 326 – Safety Integrated Overview

Overview

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

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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

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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

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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