PC Control / Profi Control 645-12M Instruction Manual pdf - Kuhnke
PC Control / Profi Control 645-12M Instruction Manual pdf - Kuhnke
PC Control / Profi Control 645-12M Instruction Manual pdf - Kuhnke
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PROFIBUS hardware installation<br />
Active bus termination<br />
For the above reason, use an active bus termination in networks<br />
that allow one terminal station to be switched off<br />
during bus operation. Active bus terminators are equipped<br />
with their own power supply so that their function is guaranteed<br />
at any time.<br />
Top view:<br />
Side view:<br />
L+ 0 PE<br />
24 V DC<br />
On<br />
Termination<br />
RPOFIBUS<br />
Line A<br />
680.180.14<br />
70<br />
115<br />
~121<br />
45<br />
Circuit<br />
diagram:<br />
PROFIBUS<br />
Line A<br />
Schirm<br />
(Shield)<br />
RxD/TxD-P<br />
RxD/TxD-N<br />
1<br />
3<br />
8<br />
Rt<br />
220 Ω<br />
Ru<br />
390 Ω +5 V<br />
Rd<br />
390 Ω 0V<br />
PE<br />
L+<br />
24 V DC<br />
0<br />
Power supply<br />
D-Sub, 9p.<br />
Ill: Active bus terminator, 24 V DC power supply<br />
Active bus terminators have a snap-on device for installation<br />
on carrier rails. Install directly next to the terminal station.<br />
Connect a bus node to the terminal station that has a<br />
short line to the bus terminator.<br />
Order specifications<br />
Name<br />
Part number<br />
Active bus terminator, 230 V AC power supply<br />
-- for cable type A 680.180.12<br />
-- for cable type B 680.180.10<br />
Active bus terminator, 24 V DC power supply<br />
-- for cable type A 680.180.14<br />
-- for cable type B 680.180.15<br />
B - 9
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