simatic s7-300 - megaelektrik.net

SIMATIC S7-300
Digital modules
SM 321 digital input modules
4
■ Technical specifications (continued)
6ES7 321-7BH01-0AB0 6ES7 321-1CH00-0AA0 6ES7 321-1CH20-0AA0 6ES7 321-1FH00-0AA0
Digital inputs
• Number of digital inputs 16 16 16 16
Number of inputs that can be driven
in parallel
• vertical mounting positions
- up to 40°C 16 16 8 16
• horizontal mounting positions
- up to 50°C 8
- up to 60°C 16 16 8; 6 to Ue 146 V 16
Length of cable
- Length of cable shielded, max. 1,000 m 1,000 m 1,000 m 1,000 m
- Length of cable unshielded,
max.
600 m 600 m 600 m 600 m
• Input characteristic to comply with
Yes Yes Yes
IEC 1131, Type 1
• Input characteristic to comply with Yes
IEC 1131, Type 2
Input voltage
- Rated value, AC 24 V; AC 24 to 48 V 230 V; AC 120/230 V
- Rated value, DC 24 V 24 V; DC 24 to 48 V 48 V; DC 48 to 125 V
- for signal "0" -30 to5 V AC -5 to 5 V DC -146 V to 15 V 0 to 40 V
- for signal "1" 13 to 30 V AC 14 to 60 V DC 30 to 146 V 79 to 264 V
- Frequency range 0 to 63 Hz 47 to 63 Hz
Input current
- for 1 signal, typical 7 mA 2.7 mA 3.5 mA 8 mA; (120V, 60Hz),
16mA (230V, 50Hz)
Input delay (at rated value of the
input voltage)
• For standard inputs
- Parameterizable Yes;
No
No
0.1 / 0.5 / 3 / 15 / 20 ms
- at 0 to 1, min. 0.1 ms
- at 0 to 1, max. 16 ms 3.5 ms 25 ms
Sensor
Connectable encoders
- 2-wire BEROS Yes Yes Yes Yes
- permissible closed-circuit current
(2-wire BEROS), max.
2 mA 1 mA 1 mA 2 mA
Status information/ interrupts/
diagnostics
Interrupts
- Interrupts Yes No No No
- Diagnostic interrupt Yes; parameterizable No No No
- Process interrupt Yes; parameterizable No No No
Diagnostics
- Diagnostic functions Yes; parameterizable No No No
Diagnostic display LED
- Status display digital input
(green)
Yes Yes Yes Yes
Insulation
• Insulation tested with 500 V DC 1500 V AC 1500 V DC 4000 V DC
4/42 Siemens ST 70 · 2005