N1500LC Indicator
NOVUS AUTOMATION
7/7
SERIAL COMMUNICATION
The indicator can be supplied with an asynchronous RS-485 digital
communication interface for master-slave connection to a host
computer (master). The indicator always works as a slave.
Communication is always initiated by the master, which sends a
command to the slave address with which to communicate. The
addressed slave takes over the line and sends the requested reply.
The indicator accepts broadcast commands (addressed to all
instruments of the network). In this type of command, the indicator
does not send any response
The N1500LC uses signals compatible with the RS-485 standard
allows 2-wire connection with a master and up to 31 indicators (and
can address up to 247) with bus topology. Maximum connection
distance: 1000 meters. Indicator off time: Maximum 2 ms after the
last byte.
Communication signals are electrically isolated from the rest of the
device, with selectable baud rate between 1200, 2400, 4800, 9600,
19200, 38400, 57600 and 115600 bps.
•
Number of data bits: 8 with no parity or even parity. Number of stop
bits: 1
•
Response start time: maximum 100 ms after receiving the
command.
•
Protocol: MODBUS (RTU)
Signals from the RS-485 interface are:
D1 = D:
Bidirectional data line.
D0 =
D:
Inverted bidirectional data line.
C = GND: Optional connection. Improves communication
performance.
In case the host computer does not have an RS-485 interface
integrated shall be used an external RS232
↔
RS485 converter.
Two parameters must be configured to use the serial communication
interface: Communication Baud Rate (
bavd
parameter) and
Communication Address (
adres
parameter).
SPECIFICATIONS
DIMENSIONS
: 48 x 96 x 92 mm (1/8 DIN). Approximate weight:
250 g
PANEL CUT-OUT
: .................................... 45 x 93 mm (+0.5 -0.0 mm)
POWER
: .................................... 100 to 240 Vac/dc (±10 %), 50/60 Hz
Optional 24 V: ..................... 12 to 24 Vcc / 24 Vca (-10 % / +20%)
Max. Consumption: ............................................................. 7.5 VA
ENVIRONMENTAL CONDITIONS
:
Operating temperature: ................................................. 5 to 50
°
C
Maximum RH: ..................................................... 80 % up to 30 ºC
For temperatures above 30 ºC, decrease 3 % per ºC
For indoor use; Installation category II, pollution degree 2;
altitude < 2000 m
INPUT
................ Voltage and Current; configurable according
Table 1
Internal resolution
: ................................................ 128000 levels
Display resolution
: .................................................. 62000 levels
Input sample rate
: .................................. 15 samples per second
Accuracy
: ...............................................................0.2 % of span.
Input impedance
: ............................................. 0-50 mV >10 M
Ω
................................. 0-20 mA, 4-20 mA: 15
Ω
(+2 Vdc @ 20 mA)
ANALOG OUTPUT
: ........................ 0-20 mA or 4-20 mA, 550
Ω
max.
. 4000 levels, Isolated, for control or retransmission of PV and SP
RELAY OUTPUT
: ALM1 and ALM2: SPDT: 3 A / 240 Vac (3 A / 30 Vdc
Res.)
. ALM3 and ALM4: SPST-NA: 1.5 A / 250 Vac (3 A / 30 Vdc Res.)
AUXILIARY VOLTAGE SUPPLY
: .............. 5 or 10 Vdc, ±1 %, 35 mA
EMC
: ................................ EN 61326-1:1997 and EN 61326-1/A1:1998
SAFETY
: ........................... EN61010-1:1993 and EN61010-1/A2:1995
CONNECTIONS SUITABLE FOR TERMINAL TYPE FORK 6.3 MM
FRONT PANEL: POLYCARBONATE UL94 V-2; CASE: ABS + PC
UL94 V-0
STARTS OPERATION AFTER 3 SECONDS CONNECTED TO
POWER
IDENTIFICATION
N1500LC -
4R -
RT -
485 -
24V
A
B
C
D
E
A
: Model
N1500LC
–
Version dedicated for load
cells
B
: Relays outputs
blank
(2 relays) or
4R
(4 relays)
C
: Analog output
RT
– (retransmission of PV in mA) or
blank
D
:Digital Communication
485
– (RS485, ModBus protocol) or
blank
E
: Power Supply
blank
(100-240 Vac/dc) or
24V
(24
Vdc/ac)
WARRANTY
Warranty conditions are available on our website
www.novusautomation.com.br/warranty
.