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

USD $ 1,409.31

SKU: 6ES7326-1BK02-0AB0

Fail-safe digital input modules are suitable for connecting

  • Switches and 2-wire proximity switches (BEROs)
  • Encoders 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 module 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. In this case, they behave like standard S7-300 modules.

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

Article number 6ES7326-1BK02-0AB0
SM326, F-DI 24 X DC24V, failsafe
Supply voltage
Rated value (DC) 24 V
Reverse polarity protection Yes
Input current
from load voltage L+ (without load), max. 450 mA
from backplane bus 5 V DC, max. 100 mA
Encoder supply
Number of outputs 4; Isolated
Type of output voltage
Output current
● Rated value 400 mA
Power loss
Power loss, typ. 10 W
Digital inputs
Number of digital inputs 24
Number of simultaneously controllable inputs
all mounting positions
— up to 40 °C, max. 24
— up to 60 °C, max. 24; (at 24 V) or 18 (at 28.8 V)
Input voltage
● Type of input voltage DC
● Rated value (DC) 24 V
● for signal “0” -30 to +5 V
● for signal “1” +11 to +30V
Input current
● for signal “0”, max. (permissible quiescent current) 2 mA
● for signal “1”, typ. 10 mA
Input delay (for rated value of input voltage)
for standard inputs
— at “0” to “1”, max. 3.4 ms
— at “1” to “0”, max. 3.4 ms
for NAMUR inputs
— at “0” to “1”, max.
— at “1” to “0”, max.
Cable length
● shielded, max. 200 m
● unshielded, max. 100 m
Encoder
Connectable encoders
● 2-wire sensor Yes; if short-circuit test is deactivated
— permissible quiescent current (2-wire sensor), max. 2 mA
Interrupts/diagnostics/status information
Diagnostics function Yes
Alarms
● Diagnostic alarm Yes
Diagnoses
● Diagnostic information readable Yes
Diagnostics indication LED
● Fail-safe operation Yes
● Group error SF (red) Yes
Ex(i) characteristics
Module for Ex(i) protection
maximum values for connecting terminals for gas group IIC
● Uo (no-load voltage), max.
● Io (short-circuit current), max.
● Po (power output), max.
● Co (permissible external capacity), max.
● Lo (permissible external inductivity), max.
● Um (voltage at non-intrinsically safe connecting terminals), max.
Potential separation
Potential separation digital inputs
● between the channels Yes
● between the channels, in groups of 12
● between the channels and backplane bus Yes
● between the channels and the power supply of the electronics
Isolation
Isolation tested with 500 V DC/350 V AC
Standards, approvals, certificates
Highest safety class achievable in safety mode
● acc. to DIN VDE 0801 AK 6
● acc. to EN 954 Cat. 4
● Performance level according to ISO 13849-1 e
● SIL acc. to IEC 61508 SIL 3
Use in hazardous areas
● ATEX certificate
Ambient conditions
Ambient temperature during operation
● max.
connection method / header
required front connector 40-pin
Dimensions
Width 80 mm
Height 125 mm
Depth 120 mm
Weights
Weight, approx. 442 g
Weight 0.49 kg
Dimensions 13.1 × 15.4 × 8.9 cm