simatic s7-300 - megaelektrik.net

■ Overview
SIMATIC S7-300
F digital / analog modules
SM 326 F digital input - Safety Integrated
• Digital inputs for the failsafe SIMATIC S7 systems
• They are suitable for connecting:
- Switches and two-wire proximity switches (BERO)
- Sensors according to NAMUR and connected mechanical
contacts, also for signals from hazardous areas
• With integrated safety func tions for failsafe operation
• Can be used in failsafe mode
- Centrally: with S7-31xF-2DP
(applies only to 6ES7 326-1BK00-0AB0)
- Distributed in ET 200M: with SIMATIC S7-31xF-2DP,
S7-416F-2 and S7-400F/FH
• Suitable for use in standard operation in the same way as
S7-300 modules
4
■ Technical specifications
6ES7 326-
1RF00-0AB0
6ES7 326-
1BK00-0AB0
Supply voltages
Supply voltage of electronic and
sensor components 1L+/2L+
- Rated value (DC) 24 V 24 V
Current consumption
• from load voltage L+ (no load), 160 mA 450 mA
max.
• from backplane bus 5 V DC, max. 90 mA 100 mA
• Power dissipation, typical 4.5 W 10 W
Connection system
• Requisite front connector 40-pin 40-pin
Digital inputs
• Number of digital inputs 8;
8 (single-channel);
4 (dual-channel)
24
Number of inputs that can be driven
in parallel
- Number of inputs that can be
driven in parallel, up to 40 °C
- Number of inputs that can be
driven in parallel, up to 60 °C
8; vertical
installation
8; horizontal
installation
24
24; (at 24 V)
or 18
(at 28.8 V)
Length of cable
- Length of cable shielded, max. 200 m 200 m
- Length of cable unshielded, max. 100 m 100 m
Input voltage
- Rated value, DC to DIN 19234 24 V
and NAMUR
- for signal "0" -30 to 5 V
- for signal "1" 11 to 30 V
Input current
- for 0 signal, max (permissible 0.35 to 1.2 mA 2 mA
closed-circuit current)
- for 1 signal, typical 2.1 to bis 7 mA 10 mA
6ES7 326-
1RF00-0AB0
6ES7 326-
1BK00-0AB0
Digital inputs (continued)
Input delay (at rated value of the
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
Sensor supply
• Number of outputs 8 4; electrically
isolated
• Output voltage
8.2 V DC
• Output current, rated value
400 mA
Sensor
Connectable encoders
- 2-wire BEROS Yes; when
short-circuit
test deactivated
- permissible closed-circuit
2 mA
current (2-wire BEROS), max.
Ex(i)-modules
• Module for Ex(i) protection Yes
Maximum values of the input
circuits (per channel)
- Ca (permissible external 3 µF
capacity), max.
- Io (short-circuit current), max. 13.9 mA
- La (permissible external inductance),
max.
80 mH
- Po (load power), max. 33.1 mW
- Uo (output open-circuit voltage), 10 V
max.
- Um (fault voltage), max 60 V DC/ 30 V AC
- permissible ambient temperature
Ta, max
60 °C 60 °C
Siemens ST 70 · 2005
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