Omron DDAA1000/SRM manual Point-to-Multipoint Analog Operation

DDAA1000/SRM User Guide

Point-to-Multipoint Analog Operation

A system is to be built where one analog input exist at one remote and one at another. The maximum possibility of master outputs is eight, so this is a valid configuration. Remote 0 being the first remote in the Master’s poll list will be assigned Master output one. Remote 1 being next in the poll list will be Master output two.

Figure 8: Point-to-Multipoint Analog Example

	0		1
	te		e
			t
	o		o
	m		m
e			e
R			R
m		m
o		o
r	fr

Remote 0

Pwr

4-20mA Input 4-20mA Output

G 1 2 3 4 5 6 7 8 G 1 2 3 4 5 6 7 8

Master	f	t
	t
	u	u
	p	p
	t	ut
	u
	O	O
Pwr
4-20mA Input	4-20mA Output

G 1 2 3 4 5 6 7 8 G 1 2 3 4 5 6 7 8

13.7

Sensor with 4 -20 mA

Output

Pwr

Note: A loop power supply may be needed. The DDAA1000 unites do not supply loop power.

Remote 1

mA

mA

***Systems with only one analog input on each remote

4-20mA Input 4-20mA Output

G 1 2 3 4 5 6 7 8 G 1 2 3 4 5 6 7 8

Sensor	Note: A loop power supply may be
	needed. The DDAA1000 unites do not
with 4 -20 mA
	supply loop power.
Output

PN 161-09981-002C

rev 8/04

DATA-LINC GROUP 11