socomec DIRIS Am Notice D'utilisation page 36

NB:
The lifetime of this relay is 10
tions.
Recommendations:
You should use a shielded twisted
pair (LIYCY type). In a disturbed envi-
ronment or large network (in terms of
length) we recommend the use of 2
shielded pairs (type LIYCY-CY). In this
case, one pair is used for the + and
the –, and another pair, where the 2
wires are short-circuited, for the 0 V.
A repeater (1 channel) or an arrestor
(4 channels) should be used if you
intend to exceed the distance (1500
m) and/or maximum number (31) of
Diris. Please contact us for more
information.
NB:
A 120 ohms resistance (found on Diris
Am) must be fixed at both ends of the
link.
Other solutions are available (modem,
optical fibre, etc.). Please contact us.
SOCOMEC - Ref. : 875 508A
PULSE EMITTER OUTPUTS
2 reed relays (100 V - 0,5 A - 10 VA)
8 opera- available on the Diris Am provide a
pulse for active, reactive and apparent
energy. Values and duration can be
programmed (see § programming).
COMMUNICATION
For standard configurations, an RS 485
link is used to connect up to 31 Diris Am
with a PC or a PLC over a distance of
1500 meters, using JBUS/MODBUS
protocol.
Programmable
controllers
Other systems
Programmable
controllers
Other systems
©
R = 120 Ω
N° 1
1500 M
R = 120 Ω
N° 1
(FACTORY OPTION)
(FACTORY OPTION)
1500 M
N° 2 N° n
R = 120 Ω
1500 M
0+- -+0
repetor N° n
R = 120 Ω
RS485
37