Siemens AS 235 appendix Connection of process monitors and parallel monitors

This catalog is out of date, see note on page 1

Automation systems

Connection diagrams

Connection of process monitors and parallel monitors

Connection of process monitors and parallel monitors

R

116 G B

BK2 BK1	AS 235 basic unit /
	AS 235 K basic system
	a

Process

monitor 1

Via T-pieces

117

AC 115 V or

AC 230 V

b

Process

monitor *)

Via T-pieces

AC 115 V or

AC 230 V

c

R

116 G B

Process

monitor 2

AC 115 V or AC 230 V

In the case of process monitors connected in parallel, the total of all looped cable lengths (a + b + c + ...) is decisive for the max. distance.

Example: a = 40 m, b = 30 m, c= 10 m

*) If the RGB video signal is looped via several monitors, only the same picture can be displayed on all moni- tors.

Fig. 3/16 Connection of process monitors and parallel monitors to an AS 235 basic unit or an AS 235 K basic system, with distances up to 80 m

	Total length > 80 m, < 500 m
		AC 115/230 V
		3 x BNC
3 x 116			Active
80 to 300 m			cable
			adapter
		3 x BNC

BK2 BK1	3 x 117	max. 2 m
AS 235 basic unit /			AC 115/230 V
AS 235 K basic system
		3 x 117	3 x BNC
				Active
		80 to 300 m
				cable
				adapter
			3 x BNC
	M1
		3 x 117	max. 2 m	AC 115/230 V
	1st monitor in sequence,		3 x 117	3 x BNC
	with loop-through
	BNC sockets		80 to 300 m
				3 x BNC
		M2		(AKA n)
Note:				3 x 117
		2nd monitor in sequence,		max. 2 m
• It must be possible to separate the video ground
		with loop-through
from the protective earth on the monitors (this is
		BNC sockets
already the case with the SCM 2140-I monitor).				Mn
• The 75-Ωterminators are only inserted for the last
monitor in the sequence.
• To prevent impairment of the picture quality, a max-				Last monitor
imum of 3 monitors should be used.				in sequence

Fig. 3/17 Connection of process monitors and parallel monitors to an AS 235 basic unit or an AS 235 K basic system, with distances from 80 up to 500 m

Siemens PLT 111 · 1999 3/31