Electro-Pneumatic Positioner TZIDC - Flowtec Industrietechnik GmbH.
Electro-Pneumatic Positioner TZIDC - Flowtec Industrietechnik GmbH.
Electro-Pneumatic Positioner TZIDC - Flowtec Industrietechnik GmbH.
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<strong>Electro</strong>-<strong>Pneumatic</strong> <strong>Positioner</strong> <strong>TZIDC</strong> 10/18-0.22-EN<br />
for 4 … 20 mA two-wire technology<br />
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Kommunikation<br />
4 Communication<br />
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4.1 DTM<br />
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The DTM (Device Type Manager) for <strong>TZIDC</strong> is based on the<br />
FDT / DTM technology (FDT 1.2) and can be integrated in a process<br />
control system or loaded in a PC with the DSV401 (SMART VISION)<br />
program. This allows you to work with the same user interface in the<br />
commissioning phase, during operation, and for service tasks for<br />
monitoring the device, setting parameters, and uploading data.<br />
Communication is based on the HART protocol. It occurs via a local<br />
interface connection (LKS) or in frequency-modulated mode using an<br />
FSK-modem connected at any chosen point of the 20 mA signal line.<br />
Communication has no effect on operation. Newly set parameters are<br />
saved in the non-volatile memory directly upon the download into the<br />
device, and become active immediately.<br />
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4.2 LKS adapter (RS-232 interface converter)<br />
Pos:<br />
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You can easily connect your <strong>TZIDC</strong> positioner to a PC, e.g., in the<br />
workshop or in the commissioning phase, by using the positioner’s<br />
LKS adapter (LKS = local communication interface).<br />
An RS-232 interface converter adapts the signals on the serial PC<br />
port to the level of the positioner’s LKS.<br />
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4.3 FSK Modem<br />
Pos:<br />
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The FSK modem establishes a digital frequency-modulated<br />
communication (Frequency Shift Keying) with the <strong>TZIDC</strong> positioner.<br />
Tapping is possible at any chosen point of the 20 mA signal line.<br />
We recommend that you use an electrically isolated FSK modem. It is<br />
bus-compatible when used with isolating amplifiers. Even connecting<br />
explosion-protected field devices is possible, on condition that the<br />
FSK modem is run outside the hazardous area.<br />
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Fig. 5: Local communication via LKS adapter<br />
1 <strong>TZIDC</strong><br />
3 Controller<br />
2 LKS adapter<br />
Fig. 6: HART communication with FSK modem via 20 mA signal line<br />
1 <strong>TZIDC</strong><br />
3 Controller<br />
2 FSK modem<br />
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