| SIMATIC S7, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, 4 DI, 24V DC, NAMUR/DIN 19234, F. SIGNALS F HAZARDOUS AREAS, CAPABLE OF DIAGNOST.,PTB-TESTED |
|
Supply voltage |
Load voltage L+ |
Rated value (DC) | 24 V |
Электропитание / [nicht versorgt - Eingang] / [nicht versorgt - Eingansstrom] |
Потребление тока / [nicht versorgt - aus Lastspannung L+ (ohne Last), max.] | 50 mA |
Потребление тока / [nicht versorgt - aus Rückwandbus DC 5 V,] | 80 mA |
Power losses |
Power loss, typ. | 1,1 W |
Digital inputs |
Number of NAMUR inputs | 4 |
Input voltage |
Входное напряжение / на цифровом выходе / при DC / расчетное значение | 8,2 V |
Input current |
on wire break, max. | 0,1 mA |
on short -circuit, max. | 8,5 mA |
Input delay (for rated value of input voltage) |
Input frequency (with a time delay of 0.1 ms), max. | 2 kHz |
for NAMUR inputs |
Parameterizable | Да |
Cable length |
Cable length unshielded, max. | 200 m |
Encoder |
Connectable encoders |
NAMUR encoder | Да |
Interrupts/diagnostics/status information |
Diagnostic messages |
Diagnostic information readable | Да |
Diagnostics indication LED |
Исполнение индикации / [nicht versorgt - für Diagnosefunktion: Kurzschluß je Kanal] / [nicht versorgt - LED rot] | Да |
Исполнение индикации / [nicht versorgt - für Diagnosefunktion: Kurzschluß Sammelfehler] / [nicht versorgt - LED rot] | Да |
Ex(i) characteristics |
Module for Ex(i) protection | Да |
Max. values of input circuits (per channel) |
Co (permissible external capacity), max. | 3 µF |
Io (short-circuit current), max. | 14,1 mA |
Lo (permissible external inductivity), max. | 100 mH |
Po (power of load), max. | 33,7 mW |
Uo (output no-load voltage), max. | 10 V |
Galvanic isolation |
Galvanic isolation digital inputs |
Galvanic isolation digital inputs | Да |
between the channels, in groups of | 1 |
Условия окружающей среды |
Operating temperature |
Температура окружающей среды / во время эксплуатации / максимальная | 60 °C |
Weight |
Weight, approx. | 230 g |
Status | 27.02.2012 |