Siemens SIMATIC TIWAY 1 Manuale utente

SIMA

TIC TIW

Y 1

UNILINK Host Adapter

User

Manual

Order Number: PPX:TIWAY–8121–2

Manual Assembly Number: 2587871–0045

Second Edition

UNILINK HOST

ADAPTER1–1

USER MANUAL

CHAPTER 1

THE

UNILINK HOST ADAPTER

1.1 INTRODUCTION

The

UNILINK Host Adapter

, Figure

1–1 is a second generation host computer

interface

product that allows a host computer to operate and control secondary

devices

on a TIW

Y I network. The UNILINK Host Adapter

, also referred to as

the “adapter” in this manual, is a hardware and software extension of the

original

TIW

Y I Host Adapter

Figure 1–1 UNILINK Host Adapter

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.

THE UNILINK HOST ADAPTER

UNILINK HOST

ADAPTER1–3

USER MANUAL

Host

Computer

RS–232–C/RS–423A

Host

Interface

(Command Processor)

TIWA

Y I

Interface External

Input Point

Output Point

TIWA

Y I

Network

Secondaries

UniLink

Host Adapter

Figure 1–3 UNILINK Host Adapter Block Diagram

Port

1Port

2Port

3Port

4AC

NEUT AC

LINE

GND

2 3 4 5

I/O

Host

Computer Port

Power Connections

TIWA

Y I Ports

External I/O Points

PPX:500–711

1, Dual Local Line media ports shown here.

Figure 1–4 UNILINK Host Adapter Physical Features

THE UNILINK HOST ADAPTER

UNILINK HOST

ADAPTER 1–4

USER MANUAL

The

features of the UNILINK Host Adapter include:



The adapter is noise hardened for factory floor use.

There are internal diagnostics tests to check the internal operation

when

powered-up or reset, and during normal operation. There is also a

selectable

test mode that is set locally

The adapter can be reset locally with an internal switch or remotely

with

a host issued command.

The

adapter supports secondary-to-secondary communications without

complex

host software or additional hardware.

The adapter is backward compatible with TIWAY I Host Adapter

software

and drivers.

The adapter includes an independent host communications port

capable of serial communications at 38.4K baud. This port operates

simultaneously

with the network ports.

This

host port provides an optional advanced host protocol for improved

throughput and data integrity. This protocol also allows up to 32

UNILINK Host Adapters to be multidropped (via a modem) from the

same

host computer RS–232–C/RS–423–A port.



The adapter supports or provides the following TIW

Y I features.

The

adapter supports the TIW

Y I redundant media feature, providing

fault

tolerant communications in case of a media failure.

The

adapter supports communication with multiple network secondary

devices

concurrently for higher network throughput.

The

adapter supports concurrent network request processing. The host

computer

does not have to wait

for a request to complete before issuing

another request when using the advanced host communication

protocol.

Commands are provided for background data collection. The adapter

can be configured to collect data for the host computer by storing the

most current data values in internal memory. Another command then

retrieves

the data.

THE UNILINK HOST ADAPTER

UNILINK HOST

ADAPTER1–5

USER MANUAL

The adapter is configurable for a variety of applications needs and

includes multiple host computer support, allowing several host

computers to communicate with the secondary devices on the same

TIWAY

I network.

The adapter provides transaction statistics collection to aid network

performance

tuning.

1.3 TYPICAL NETWORK APPLICATIONS

Figure

1–5 illustrates

a typical single host network managing a process control

application. The host computer application directs the secondary devices

through

the UNILINK Host Adapter and the TIW

Y I network. Commands are

provided for downloading or uploading data from the host computer to the

secondary

devices and for checking the status of an individual device.

Host

Computer

UNILINK

TIWAY

UniLink Host Adapter ( MHU)

RS–232–C/RS–423–A

Host Interface Cable

Figure 1–5 Single Host Network

THE UNILINK HOST ADAPTER

UNILINK HOST

ADAPTER 1–6

USER MANUAL

The

flexibility of the UNILINK Host Adapter also provides for

multiple hosts as

illustrated in Figure 1–6. In addition to the process control application, your

main plant system can link to the same network to track work-in-progress,

adjust

schedule loads for peak efficiency

and collect product cost data. W

ith an

additional UNILINK Host Adapter, you can also add a personal computer

workstation

to the network for statistical quality control or other uses.

Host

Computer

UNILINK

UniLink

Host

Adapter (MHU)

Host

Computer

UNILINK

UniLink Host

Adapter (MHU)

Figure 1–6 Multiple Host Network

THE UNILINK HOST ADAPTER

UNILINK HOST

ADAPTER1–7

USER MANUAL

1.4 TIWA

Y I SYSTEM CHARACTERISTICS

TIW

Y I is a bus structure Local Area Network (LAN) designed for industrial

environments. The TIWAY I network connects a series of Texas Instruments

Programmable Controllers (P/Cs) and other devices to one or more host

computers. W

ith the network, you can obtain, modify or replace data stored in

any

of the following Siemens products:

SIMATICTI520/SIMATICTI530/

SIMATICTI520C/SIMATICTI530C

P/Cs

SIMATICTI560/SIMATICTI565

P/Cs



PM550/PM550C P/Cs



5TI, Series 102, 103 P/Cs

IT–111, IT–121, IT–121A, IT150, and IT–160 Intelligent Tank

Transmitters

(ITT

The P/Cs are connected to a TIWAY I network through Network Interface

Modules (NIMs). The PM550 P/C can also be connected with a Computer

Interface Module (CIM), but

it limits the configuration choices. The UNILINK

Secondary

Adapter is a

TIW

Y I interface device that allows other devices, such

the following, to be connected to a TIW

Y I network.

Robots



Computer numerical controlled machines

Non-SIMA

TIC programmable controllers



Intelligent instruments



Computer equipment

TIWAY I gateways are also available for connecting the Fisher, Foxboro, and

Honeywell networks to TIWAY I. However, you cannot use a gateway and a

UNILINK

Host Adapter in the same TIW

Y I network. TIW

Y I

is designed to

satisfy today’s factory requirements for acquiring data and controlling

manufacturing

processes.

It is a noise-hardened serial binary communications

network that uses an advanced data link protocol.

Series 500 controllers can be connected with PEERLINKfor high speed

transfer of small amounts of data between controllers. The PEERLINK is a

solution for applications where one or more Series 500 controllers are

dependent

on high speed transfer of data from another Series 500 controller

THE UNILINK HOST ADAPTER

UNILINK HOST

ADAPTER 1–8

USER MANUAL

With

appropriate host software, an operator can program, monitor

, and control

any P/C or other intelligent device on the TIWAY I network from a single

location.

The importance of the UNILINK Host Adapter is that it provides a

communication link between the TIWAY I network and one or more host

computers. Figure 1–7 is a diagram representing the various host computers

that

can be connected to a UNILINK Host Adapter

, and the typical devices that

can

be controlled in a TIW

Y I network.

PC/

XT/

ICC 6000

CVU5000

IBM

DEC

TIPC PDP–

UniLink

Host

Adapter

IBM

Other

NIM

5TI

NIM

SIMATIC

TI520

NIM

SIMATIC

TI560

NIM

SIMATIC

TI565

TIWA

Y I

NIM

PM550

NIM

SIMATIC

TI530/

TI530C

NIM

Int.

Tank

Xmtr.

PEERLINK PEERLINK PEERLINK PEERLINK

Gateways

Fisher

Honeywell

Foxboro

Others

Map

Secondary

Adapter

Robots

CNC

Int. Scales

Other

Int. Devices

PC/

XT/

AT

Figure 1–7 TIWAY I Network

You cannot use a UNILINK Host Adapter in a TIWAY I network that also

contains

a TIW

Y I Gateway or Network Control Module (NCM) or a TIW

Host Adapter. Chapter 4 provides information on interfacing the adapter to a

TIWAY

I network.

THE UNILINK HOST ADAPTER

UNILINK HOST

ADAPTER1–9

USER MANUAL

1.5 INSTALLATION

Instructions for installing the UNILINK Adapter and the UNILINK Host

Adapter PIM are given in the UNILINK Adapter Installation and Operation

Manual (PPX:TIWAY–8106). It provides the electrical and mechanical

installation

instructions and guidelines for the the UNILINK Host Adapter

Chapter 2 discusses the different operational modes and how they are

configured.

Chapter

3 discusses the host computer interface port, Port 3, and how to set the

dipswitches

to establish communications.

Chapter

4 discusses the TIW

Y I interface ports, Ports 1 and 2, and how setup

your

network.

1.6 TECHNICAL

ASSIST

ANCE

If you need assistance with the installation an operation of this equipment,

contact

your Siemens Industrial Automation, Inc. distributor or sales agent. If

you

need assistance in contacting your distributor or sales office in the United

States,

call 800–964–41

14.

1.7 CUSTOMER

SER

VICE CENTER

If you need assistance in placing an order, returning a product, or learning

about product availability, contact your Siemens Industrial Automation, Inc.

distributor

or sales agent. If you need

assistance in contacting your distributor

sales office in the United States, call 800–964–41

14.

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