Siemens SIMATIC NET PROFIBUS manual PG socket

Passive Components for RS-485 Networks

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-	6ES7 972-	6ES7 972-	6GK1 500-
		... 0BA11-0XA0	... 0BA40-0XA0	0BA30-0XA0	0EA02
		... 0BB11-0XA0	... 0BB40-0XA0
PG socket		0BA11: no	0BA40: no	no	no
		0BB11: yes	0BB40: yes
Max. transmission		12 Mbps	12 Mbps	1.5 Mbps	12 Mbps
rate
Terminating resistor		integrated	integrated	no	integrated
and disconnect
function
Cable outlet		vertical	oblique 35_	oblique 30_	axial
Interfaces
S	to PROFIBUS	9-pin sub-D male	9-pin sub-D male	9-pin sub-D male	9-pin sub-D male
	node	connector	connector	connector	connector
S	to PROFIBUS	4 modular	4 modular	4 insulation	4 modular
	LAN cable	terminals for wires	terminals for wires	displacement	terminals for wires
		up to 1.5 mm2	up to 1.5 mm2	terminals for wires	up to 1.5 mm2
				0.644 " 0.04 mm
Connectable		8 " 0.5 mm	8 " 0.5 mm	8 " 0.5 mm	8 " 0.5 mm
PROFIBUS cable
diameter
Power supply (must		4.75 to 5.25 V DC	4.75 to 5.25 V DC	---	4.75 to 5.25 V DC
be supplied by DTE)
Current consumption		max. 5 mA	max. 5 mA	---	max. 5 mA
Permitted ambient
conditions
S	Operating	0 _C to +60 _C	0 _C to +60 _C	0 _C to +60 _C	0 _C to +55 _C
	temperature	-25 _C to +80 _C	-25 _C to +80 _C	-25 _C to +80 _C	-25 _C to +70 _C
S	Transport/storage
	temperature	max. 75 % at	max. 75 % at	max. 75 % at	max. 95 % at
S	Relative humidity	+25 _C	+25 _C	+25 _C	+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.

PROFIBUS Networks SIMATIC NET	4-35
6GK1970-5CA20-0AA1 Release 2 05/2000