Siemens S7-300 - Technical Data - SM 326; DI 24 X DC 24 V

Digital modules
8.3 SM 326; DI 24 x DC 24V
Fail-safe signal modules
102 Installation and Operating Manual, 01/2010, A5E00085586-10
8.3.10 Technical data - SM 326; DI 24 x DC 24V
Overview
Technical data
Dimensions and Weight
Dimensions W x H x D (mm) 80 x 125 x 120
Weight Approx. 442 g
Module-Specific Specifications
Configuration in Run (CiR) supported Yes (only in standard mode)
 Behavior of non-configured inputs during CiR
Return the process value that was valid prior to
parameter assignment
Supports time stamping Yes
 Accuracy
20 ms to 30 ms
Number of inputs
 Single-channel
24
 Dual-channel
12
Assigned address area
 In the I/O input area
10 bytes
 In the I/O output area
4 bytes
Cable length
 Unshielded
100 m, maximum
 Shielded
200 m, maximum
Front connectors 40-pin
Maximum achievable Safety Integrity Level in safety mode
 According to IEC 61508
SIL 3
 According to EN 954-1
Category 4
 According to ISO 13849:2006
PLe
Fail-safe performance characteristics SIL 2 SIL 3
 low demand mode (average probability of
failure on demand)
< 1.00E-04 < 1.00E-05
 high demand / continuous mode (probability
of a dangerous failure per hour)
< 1.00E-08 < 1.00E-09
Voltages, Currents, Potentials
Rated supply voltage of the electronic system
and sensors 1L+, 2L+
24 V DC
 Reverse polarity protection
Yes
 Power failure ride-through (does not apply to
sensor supply outputs)
5 ms