Siemens Simatic S7-300 Instrukcja Obsługi Pobierz pdf (Strona 100)

100

101

Digital modules

3.12 Digital input module SM 321; DI 16 x DC 24/125 V; with hardware and diagnostic interrupts (6ES7321-

7EH00-0AB0)

S7-300 Module data

100 Manual, 02/2013, A5E00105505-08

Table 3- 16 Dependence on rated input voltage and resistance

Rated input voltage L+ Resistance R

24 VDC 43 kΩ

48 VDC 100 kΩ

125 VDC 300 kΩ

SM 321; DI 16 x DC 24 V/125V - Technical specifications

Technical specifications

Dimensions and weight

Dimensions W x H x D (mm) 40 x 125 x 117

Weight approx. 200 g

Module-specific data

Supports isochronous mode No

Supports parameter reassignment in RUN Yes

• Response of non-programmed inputs

return the process value which was valid before

configuration

Accuracy of the time stamp > 5 ms*

Number of inputs 16

Cable length

• unshielded

• shielded

max. 600 m

max. 1000 m

Voltages, currents, electrical potentials

Number of simultaneously controlled inputs

• Horizontal mounting position to 60 °C

– L+ = 146 VDC

– L+ = 125 VDC

– L+ = 100 VDC

• Vertical mounting position to 40 °C

– L+ = 146 VDC

– L+ = 125 VDC

– L+ = 100 VDC

Electrical isolation

• between channels and the backplane bus

• between channels

Yes

Maximum potential difference

• between different circuits

300 VDC / 250 VAC

Isolation test voltage 3500 VDC

Current consumption

• from the backplane bus

max. 90 mA

1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 675 676

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