Siemens SIMATIC TIWAY 1 Uživatelský manuál stáhnout pdf (Strana 3)

THE UNILINK HOST ADAPTER

UNILINK HOST

ADAPTER 1–2

USER MANUAL

1.2 FEATURES

The

hardware is composed of the UNILINK Adapter

shown in Figure 1–1, with

plug-in Personality Interface Module (PIM) PPX:500–6224.

The PIM, shown

in Figure 1–2, contains the software that causes the UNILINK Adapter to

operate

as the UNILINK Host Adapter

Figure 1–2 Personality Interface Module (PIM)

Figure 1–3 illustrates the basic structure of the UNILINK Host Adapter. The

corresponding physical features are shown in Figure 1–4. It includes an

RS–232–C/RS–423–A compatible host port that supports the Non-Intelligent

Terminal Protocol (NITP) used by the original TIWAY I Host Adapter, or the

BDLC

protocol, an advanced, byte-oriented subset of the HDLC protocol. Also,

there are two TIW

Y I interface ports and an external I/O point block.

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Siemens SIMATIC TIWAY 1 Uživatelský manuál Strana 3