simatic s7-300 - megaelektrik.net

SIMATIC S7-300
Digital modules
SM 321 digital input modules
■ Technical specifications (continued)
6ES7 321-1BH02-0AA0 6ES7 321-1BH50-0AA0 6ES7 321-1BL00-0AA0 6ES7 321-1BH10-0AA0
Sensor
Connectable encoders
- 2-wire BEROS Yes Yes Yes Yes
- permissible closed-circuit current
1.5 mA 1.5 mA 1.5 mA 1.5 mA
(2-wire BEROS), max.
Status information/ interrupts/
diagnostics
Interrupts
- Interrupts No No No No
Diagnostics
- Diagnostic functions No No No No
Diagnostic display LED
- Status display digital input Yes Yes Yes Yes
(green)
Insulation
• Insulation tested with 500 V DC 500 V DC 500 V DC 500 V DC
Potentials/ electrical isolation
Digital input functions
- between the channels Yes
- between the channels,
16 16 16 16
in groups of
- between the channels and the
backplane bus
Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler
4
Dimensions and weight
• Weight, approx. 200 g 200 g 260 g 200 g
• Width 40 mm 40 mm 40 mm 40 mm
• Height 125 mm 125 mm 125 mm 125 mm
•Depth 120 mm 120 mm 120 mm 120 mm
6ES7 321-7BH01-0AB0 6ES7 321-1CH00-0AA0 6ES7 321-1CH20-0AA0 6ES7 321-1FH00-0AA0
Voltages and currents
Load voltage L+
- Rated value (DC) 24 V 24 V 48 V
Load voltage L1
- Rated value (AC) 24 V 230 V; 120/230V AC,
same phase only
Current consumption
• from load voltage L+ (no load), 90 mA
max.
• from backplane bus 5 V DC, max. 130 mA 100 mA 40 mA 29 mA
• Power dissipation, typical 4 W 1.5 W; at 24 V;
4.3 W 4.9 W
2.8 W at 48 V
Connection system
• Requisite front connector 20-pin 40-pin 20-pin 20-pin
Clock synchronism
• Clock synchronous operation Yes No No No
Siemens ST 70 · 2005
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