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Siemens SIMATIC NET PROFIBUS User Manual

Page 133

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Passive Components for RS-485 Networks

4-35

PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000

Technical Specifications

The following table shows the technical data of the various bus connectors:

Table 4-7

Technical Specifications of the IP 20-compliant Bus Connectors

Order numbers:

6ES7 972-

... 0BA11-0XA0
... 0BB11-0XA0

6ES7 972-

... 0BA40-0XA0
... 0BB40-0XA0

6ES7 972-

0BA30-0XA0

6GK1 500-

0EA02

PG socket

0BA11: no

0BB11: yes

0BA40: no

0BB40: yes

no

no

Max. transmission
rate

12 Mbps

12 Mbps

1.5 Mbps

12 Mbps

Terminating resistor
and disconnect
function

integrated

integrated

no

integrated

Cable outlet

vertical

oblique 35

_

oblique 30

_

axial

Interfaces

S

to PROFIBUS
node

S

to PROFIBUS
LAN cable

9-pin sub-D male

connector
4 modular

terminals for wires

up to 1.5 mm

2

9-pin sub-D male

connector
4 modular

terminals for wires

up to 1.5 mm

2

9-pin sub-D male

connector

4 insulation

displacement

terminals for wires

0.644

"

0.04 mm

9-pin sub-D male

connector
4 modular

terminals for wires

up to 1.5 mm

2

Connectable
PROFIBUS cable
diameter

8

"

0.5 mm

8

"

0.5 mm

8

"

0.5 mm

8

"

0.5 mm

Power supply (must
be supplied by DTE)

4.75 to 5.25 V DC

4.75 to 5.25 V DC

---

4.75 to 5.25 V DC

Current consumption

max. 5 mA

max. 5 mA

---

max. 5 mA

Permitted ambient
conditions

S

Operating
temperature

S

Transport/storage
temperature

S

Relative humidity

0

_

C to +60

_

C

-25

_

C to +80

_

C

max. 75 % at

+25

_

C

0

_

C to +60

_

C

-25

_

C to +80

_

C

max. 75 % at

+25

_

C

0

_

C to +60

_

C

-25

_

C to +80

_

C

max. 75 % at

+25

_

C

0

_

C to +55

_

C

-25

_

C to +70

_

C

max. 95 % at

+25

_

C

Dimensions (in mm)

15.8

54

34

16

54

38

15

58

34

15

39

57

Weight

approx. 40 g

approx. 40 g

approx. 30 g

approx. 100 g

Disconnect Function

The disconnect function means that the remaining LAN cable is disconnected from
the bus when the terminating resistor is activated. If the terminating resistor is
accidentally activated in the middle of the LAN cable, the error can be recognized
and localized immediately due to the nodes that are no longer accessible.