SM 326 F digital input modules - Safety Integrated

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• Информационные материалы

  Информационные материалы

  • Digital inputs for the fail-safe SIMATIC 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

  Область применения

  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.

  Дизайн

  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.

  Функции

  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.

  Технические данные

  Order number		6ES7326-1RF01-0AB0	6ES7326-1BK02-0AB0
  		SM326, 8DE, DC24V, FAILSAFE	SM326, F-DI 24 X DC24V, FAILSAFE
  General information
  Product type designation		F-DI 8x24VDC Namur
  Supply voltage
  Rated value (DC)			24 V
  Input current
  from load voltage L+ (without load), max.		160 mA	450 mA
  from backplane bus 5 V DC, max.		90 mA	100 mA
  Encoder supply
  Number of outputs		8	4; Isolated
  Type of output voltage		8.2 V DC
  Output current
  ● Rated value			400 mA
  Power loss
  Power loss, typ.		4.5 W	10 W
  Digital inputs
  Number of digital inputs		8	24
  Number of simultaneously controllable inputs
  all mounting positions
  — up to 40 °C, max.		8	24
  — up to 60 °C, max.		8	24; (at 24 V) or 18 (at 28.8 V)
  Input voltage
  ● Type of input voltage		DC	DC
  ● Rated value (DC)			24 V
  ● for signal "0"			-30 to +5V
  ● for signal "1"			+11 to +30V
  Input current
  ● for signal "0", max. (permissible quiescent current)		0.35 to 1.2 mA	2 mA
  ● for signal "1", typ.		2.1 to 7 mA	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.		1.2 to 3 ms
  — at "1" to "0", max.		1.2 to 3 ms
  Cable length
  ● shielded, max.		200 m	200 m
  ● unshielded, max.		100 m	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
  Alarms
  ● Diagnostic alarm		Yes; Parameterizable	Yes
  Diagnostic messages
  ● Diagnostic information readable			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
  Potential separation
  Potential separation digital inputs
  ● between the channels		Yes	Yes
  ● between the channels, in groups of			12
  ● between the channels and backplane bus		Yes	Yes
  ● between the channels and the power supply of the electronics		Yes
  Isolation
  Isolation tested with			500 V DC/350 V AC
  Highest safety class achievable in safety mode
  ● acc. to DIN VDE 0801			AK 6
  ● acc. to EN 954		Cat. 4	Cat. 4
  ● SIL acc. to IEC 61508		SIL 2 (single-channel), SIL 3 (two-channel)	SIL 3
  Use in hazardous areas
  ● Test number KEMA		99 ATEX 2671 X
  Connection method
  required front connector		1x 40-pin	40-pin
  Dimensions
  Width		80 mm	80 mm
  Height		125 mm	125 mm
  Depth		120 mm	120 mm
  Weights
  Weight, approx.		482 g	442 g