SIMATIC S7-300 – SM 326 Fail-safe Digital Output Modules – Siemens Digital Modules

USD $ 1,000.61 – USD $ 1,690.08

SKU: N/A

Fail-safe digital output 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.The modules are, for example, suitable for connecting solenoid valves, DC contactors and indicator lights.

In the case of the SM 326 F-DO 10 x DC 24V/2A PP (6ES7 326-2BF10-0AB0), the function “Keep last valid value” can be used optionally in safety mode too. Together with the diagnostics capability of the module, this can be used for cost-optimized implementation of applications in, for example, the area of fire and gas alarm systems (in accordance with EN 54-2/-4 or NFPA72).

Siemens Fail-safe Digital Output Modules SIMATIC S7-300 Product Specifications:

Article number 6ES7326-2BF10-0AB0 6ES7326-2BF41-0AB0
SM326, F-DO10XDC24V/2A PP, failsafe SM 326, F-DO 8 X DC 24V/2A PM
Supply voltage
Rated value (DC) 24 V; 1L+ 24 V; 1L+
Reverse polarity protection Yes Yes
Load voltage L+
● Rated value (DC) 24 V; 2L+, 3L+ 24 V; 2L+, 3L+
● Reverse polarity protection No No
Input current
from supply voltage 1L+, max. 100 mA 75 mA
from load voltage 2L+ (without load), max. 100 mA 100 mA
from load voltage 3L+ (without load), max. 100 mA 100 mA
from backplane bus 5 V DC, max. 100 mA 100 mA
Power loss
Power loss, typ. 6 W 12 W
Digital outputs
Number of digital outputs 10 8
Short-circuit protection Yes Yes
Limitation of inductive shutdown voltage to L+ (-33 V)
Switching capacity of the outputs
● on lamp load, max. 5 W 5 W
Output voltage
● for signal “1”, min. L+ (-1.0 V) L+ (-1.0 V)
Output current
● for signal “1” rated value 2 A 2 A
● for signal “1” permissible range for 0 to 40 °C, min. 7 mA 7 mA
● for signal “1” permissible range for 0 to 40 °C, max. 2.4 A 2 A; 2 A for horizontal installation, 1 A for vertical installation
● for signal “1” permissible range for 40 to 60 °C, min. 7 mA 7 mA
● for signal “1” permissible range for 40 to 60 °C, max. 2.4 A 1 A; for horizontal installation
● for signal “0” residual current, max. 0.5 mA 0.5 mA
Switching frequency
● with resistive load, max. 25 Hz 30 Hz
● with inductive load, max. 25 Hz 2 Hz
● on lamp load, max. 10 Hz 10 Hz
Total current of the outputs (per group)
horizontal installation
— up to 40 °C, max. 10 A 7.5 A
— up to 60 °C, max. 6 A 5 A
vertical installation
— up to 40 °C, max. 5 A 5 A
Cable length
● shielded, max. 1 000 m 200 m; 200 m for SIL 3, AK 6, Cat 4
● unshielded, max. 600 m 200 m
Interrupts/diagnostics/status information
Alarms
● Diagnostic alarm Yes Yes; Parameterizable
Diagnoses
● Diagnostic information readable Yes Yes
Diagnostics indication LED
● Fail-safe operation Yes Yes
● Group error SF (red) Yes Yes
Potential separation
Potential separation digital outputs
● between the channels Yes Yes
● between the channels, in groups of 5 4
● between the channels and backplane bus Yes Yes
● between the channels and the power supply of the electronics Yes Yes
Isolation
Isolation tested with 370V for 1 min 500 V DC/350 V AC
Standards, approvals, certificates
Highest safety class achievable in safety mode
● acc. to DIN VDE 0801 AK 5 and 6
● acc. to EN 954 Cat. 4 Cat. 4
● Performance level according to ISO 13849-1 e e
● SIL acc. to IEC 61508 SIL 3 SIL 3
connection method / header
required front connector 40-pin 40-pin
Dimensions
Width 40 mm 80 mm
Height 125 mm 125 mm
Depth 120 mm 120 mm
Weights
Weight, approx. 330 g 465 g
Weight N/A
Dimensions N/A

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