Siemens SIMATIC NET PROFIBUS, Руководство пользователя, Страница: 388 / 490

Infrared Link Modul (ILM)
6ZB530–3AC30–0BA1
46 Copyright

by Siemens
11 Technical Specifications
Operating voltage
Safety extra-low voltage (SELV)
24 V DC (20 V to 30 V)
Current consumption ma
×
. 300 mA
Transmission rate 9.600 Kbps; 19.200 Kbps; 45.45 Kbps, 93.75 Kbps;
187.5 Kbps; 500 Kbps; 1.5 Mbps;
Setting the transmission rate Using 3 DIP switches
Setting the mode Using 5 DIP switches
Bit error rate <10
–6
Signal delay time
RS 485 input
→
infrared output
<
=
6 bit times
Signal delay time
infrared input
→
RS 485 output
<
=
3 bit times
Electrical channel
Input/output signal RS 485 level
Input voltage dielectric strength –10 V to
)
15 V
Interface signals Ungrounded within the SELV limits
Terminating resistors Activated with DIP switch
Optical channel
Optical source 21 LEDs
Optical power 280 mW effective with alternating 0–1 sequence
Receiver sensitivity 0.5 A/W
– 28 dBmW
Wavelength 860 nm to 880 nm
Distance between two ILMs maximum 15 m in the optical axis
12 m at
)
/–2 m distance from the optical axis
Signaling contacts Limit values of the relay
maximum switching power
30 W
Maximum switching voltage 30 V DC
Maximum switching current 1.0 A
Table 3: Technical Specifications of the PROFIBUS ILM