Siemens SIMATIC NET PROFIBUS User Manual download pdf (Page 11)

11

PROFIBUS

Connecting cables, bus connectors

PPROFIBUS 830-1 T connecting cable

The PROFIBUS 830-1T connecting

cable can be used to establish the

connection between the electrical

PROFIBUS interface and the

PROFIBUS nodes (OLM, OBT and

terminal nodes) up to 12 Mbit/s.

It is equipped at both ends with a 9-pin

sub D connector.

Both ends of the cable are terminated

with a resistor combination (cannot be

disabled).

PROFIBUS 830-2 connecting cable

The 830-2 connecting cable is used to

connect PROFIBUS nodes (e.g. HMI) to

automation devices for transmission

rates up to 12 Mbit/s.

It is pre-assembled with two 9-pin

connectors.

One plug of the pre-assembled con-

necting cable is equipped with a PG

interface.

Bus connectors

RS 485 bus connectors for PROFIBUS

are used to connect a PROFIBUS node

or a PROFIBUS network component

to PROFIBUS LAN cables.

Different versions of the bus connec-

tors are available and are optimized for

the devices to be

connected:

· Bus connectors

with an axial cable outlet (180°)

e.g. for PCs and SIMATIC HMI OPs,

for transfer rates up to

12 Mbit/s with

integrated bus terminating resistor

Figure 14: 830-1 T connecting cable

· Bus connector

with vertical cable outlet (90°)

This cable allows a vertical cable

outlet (with and without PG interface)

for transfer rates up to 12 Mbit/s with

integrated bus terminating resistor.

At transfer rates of 3, 6 or 12 Mbit/s,

the SIMATIC S5/S7 connecting cable

is required for the connection be-

tween the bus connector with addi-

tional PG interface and the program-

ming device.

· Bus connector

with 30° cable outlet

(low-cost version)

without a PG interface for transfer

rates up to 1.5 Mbit/s and without an

integrated bus terminating resistor.

· PROFIBUS FastConnect RS 485

bus connector

(90° or 180° cable outlet)

with transfer rates up to 12 Mbit/s for

fast, easy mounting with the insula-

tion displacement method

(for rigid and flexible wires)

Figure 15: 830-2 connecting cable

Figure 16: PROFIBUS FC RS 485 bus

connector plug 180

Figure 17: Bus connector with

90° cable outlet

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