Profibus Actuator Control Profibus DP Option Card Installation Manual
Profibus Actuator Control Profibus DP Option Card Installation Manual
Profibus Actuator Control Profibus DP Option Card Installation Manual
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LK2<br />
SK1<br />
<strong>Profibus</strong> <strong>DP</strong> Mk2 <strong>Option</strong> <strong>Card</strong> <strong>Installation</strong> <strong>Manual</strong><br />
Data line 1B is positive with respect to data line 1A when the PFU is transmitting a ‘1’.<br />
Data line A is also called TxD/RxD-N<br />
Data line B is also called TxD/RxD-P<br />
If an analogue input is being used it is connected to the analogue input terminals. The <strong>Profibus</strong> card<br />
caters for both current and voltage analogue signals. There is no power supply on the card for the<br />
analogue transmitter and an external power supply must be used to power it.<br />
<br />
<br />
For voltage inputs connect I/P A to the positive signal and analogue Common to the<br />
negative signal from the transmitter<br />
For current inputs connect I/P A to I/P B (to insert the conditioning resistor). The current<br />
input positive is to I/P A and I/P B whilst the current input negative is connected to the<br />
analogue Common.<br />
Active termination resistors are included on the <strong>Profibus</strong> card. The jumper links LK1 and LK2 on the<br />
PNIC board are used to select the inclusion of these resistors.<br />
<br />
<br />
Fit LK1 and LK2 as shown to provide pull apart active termination to the network at this<br />
actuator and<br />
Link Terminals ‘Terminator’ and ‘<strong>Profibus</strong> A’ to add end of line termination<br />
EPROM<br />
LK3<br />
LK4<br />
LK2<br />
LK1<br />
Links shown<br />
in 'Terminate'<br />
position<br />
LK1<br />
SK3<br />
LK1<br />
SK5 SK7 SK10<br />
SK8<br />
SK2<br />
Fig 16: Single Highway Active Termination Links<br />
24 of 66 Publication S420E V3.0 Issue 01/05