Schneider Automation Interbus Fiber Optic CommunicationsAdapter Manual de usuario descargar pdf (Pagina 11)

Interbus with TSX Momentum

Width: 178 mm

Height: 216 mm

1.2 170 INT 120 00 Communications Adapter Basics

1.2.1 Environmental Conditions

The communications adapter’s environmental specification conforms to that of the

I/O bases upon which it can be mounted. Specifics can be found within the system

data presented in the 870 USE 002 02 User Manual for TSX Momentum I/O

Bases.

1.2.2

Communications Adapter Installation

The communications adapter (executed in the IP20 safety classification) connects

to the I/O base through a single connector. The adapter is locked firmly in place by

spring clips, and can be easily removed with a screwdriver.

A label inlay is supplied with the I/O base and fits directly into the recessed area at

the front of the adapter. The signal names given to the connected sensors and

actuators can be identified directly upon the label. A small opening at the right side

of the label inlay keeps the bus adapter’s name visible.

1.2.3

Function

The bus adapter is equipped with 2 Interbus ports (incoming and outgoing remote

bus) for fiber optic cable conforming to the Interbus standards DIN 19258.

Each Interbus node updates & regenerates the incoming message stream before

passing it on to the next node. Message handling includes the extraction of output

data destined for the adapters host I/O base, and the addition of any collected

input data.

1.2.4

Error Control Procedures

The internal power supply (Vcc) required by the adapter is provided by the host

I/O base. Vcc is monitored, generating a reset signal whenever Vcc is out of

tolerance.

The INT 120 00 also performs quality monitoring of the optical transmission

medium. The light level at the incoming and outgoing remote bus optical receivers

is measured and compared with a preset threshold value. Any lesser values are

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 43 44

Sin comentarios

Schneider Automation Interbus Fiber Optic CommunicationsAdapter Manual de usuario Pagina 11