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Indicator N1500  

NOVUS AUTOMATION 

7/7 

REDUCED REGISTERS TABLE FOR SERIAL 

COMMUNICATION 

Communication Protocol 
The MOSBUS RTU slave is implemented. All configurable 

parameters can be accessed for reading or writing through the 

communication port. Broadcast commands are supported as well 

(address 0). 
The available Modbus commands are: 

01 – Read Coils 

05 – Write  Single Coil 

03 - Read Holding Register 

06 - Write Single Register 

Holding Register Table 
Follows a description of the usual communication registers. For full 

documentation download the Registers Table for Serial 

Communication  in the N1500 section of our web site – 

www.novusautomation.com

All registers are 16 bit signed integers.  

Address  Parameter 

Register Description 

0000 

PV 

Read: process variable. 
Write: not allowed. 
Range: the minimum value is in 

inlol

 

seted and the maximum value is in 

inkil

  seted an the decimal point 

position depends of 

dppos

0003 

PV 

Read: normalized Process Variable. 
Write: not allowed. 
Maximum range: 0 to 62000. 

0004 

Display 

Value 

Read: current display value. 
Write: current display value. 
Maximum range: -31000 to 31000. 
The range depends of the showed 

display. 

SPECIFICATIONS 

DIMENSIONS: ......................................... 48 x 96 x 92 mm (1/16 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 24V: ....................  12 to 24 Vdc / 24 Vac (-10 % / +20 %) 

 Max. Consumption: ............................................................  7.5 VA 

ENVIRONMENTAL CONDITIONS

Operating temperature: ..................................................  5 to 50 ºC 

Maximum RH: ......................................................... 80 % up to 30 ºC.  

 ...................... For temperatures above 30 ºC, decrease 3 % per ºC. 

Panel protection: ............................................ IP65, for indoor use;  

 ....................................... Installation category II, pollution degree 2;  

altitude < 2000 m 

INPUT .................... Keyboard selection of input type (refer to Table 1

Internal resolution: ................................................ 128000 levels 

Display resolution

       Temperature:  ......................................................................1 / 0.1 
       Other measures ..............................1 / 0.1 / 0.01 / 0.001 / 0.0001 

Input sample rate: ............................. 5 per second for Pt100 and T/C 

 ................. 15 per second to 0-50 mV, 4-20 mA, 0-5 V and 0-10 V 
Accuracy: ........ Thermocouples J, K, T, N: 0.25 % of span 

±

1 ºC 

 ........................... Thermocouple E, R, S, B: 0.25 % of span 

±

3 ºC 

 ...................................................................... Pt100: 0.2 % of span 

 .............................................................. mA, mV, V: 0.2 % of span 

Input impedance: ..........................................................................    

 ............................... 0-50 mV, Pt100 and thermocouples: >10 M

 

 ..................................................................... 0-5 V, 0-10 V: >1 M

 

 ................................. 0-20 mA, 4-20 mA: 15 

 (+2 Vdc @ 20 mA) 

Pt100 measurement: ............... DIN 43760 standard (

α

=0.00385) 

Excitation current: ................................. 0.750 mA. 3-wire circuit,  

cable resistance compensation 

ANALOG OUTPUT: ........................ 0-20 mA or 4-20 mA, 500 

 max. 

 .............................................................................. 4000 levels, Isolated 
RELAY OUTPUT:..................................................................................    

 ........................ ALM1, ALM2: SPDT 3 A / 240 Vac (3 A / 30 Vdc Res.) 

 .............. ALM3, ALM4: SPST-NO: 1.5 A / 250 Vac (3 A / 30 Vdc Res.) 

EMC: ................................ EN 61326-1:1997 and EN 61326-1/A1:1998 
SAFETY:  .......................... EN61010-1:1993 and EN61010-1/A2:1995 
SPECIFIC CONNECTIONS FOR TYPE FORK TERMINALS OF 6.3 

MM;  
CASE: 
Polycarbonate UL94 V-2; Caixa: ABS+PC UL94 V-0; 
START UP: 
3 seconds after power up. 
CERTIFICATIONS: ....................................... CE / UL (FILE: E300526) 

ORDERING INFORMATION: 

N1500 - 

4R - 

RT - 

485 - 

24V 

A:  Series model:      N1500 
B:  Relays outputs:      blank (2 relays); 4R (4 relays) 
C:  Analog output:      RT – (Retransmission of the input    

              signal) or Blank 
D:  Digital Communication:  485 – (RS485, ModBus protocol) or  

              Black 
E:  Voltage rating:      blank (100-240 Vac/dc); 24V (12 to 24 

              Vdc / 24 Vac) 

WARRANTY 

Warranty conditions are available on our  web site 

www.novusautomation.com/warranty

.

 

Summary of Contents for N1500

Page 1: ...ommunication optional 3rd and 4th alarm relays optional PROCESS VARIABLE INPUT PV The process variable PV input type is configured through the frontal keypad according to the codes shown in Table 1 re...

Page 2: ...rm output to be delayed or to deliver a single pulse or a train of pulses The delay the pulse width and the period are defined by the user Table 3 shows these advanced functions Times T1 and T2 can be...

Page 3: ...uld be suitable for this purpose and should not be shared In controlling and monitoring applications possible consequences of any system failure must be considered in advance The internal alarm relay...

Page 4: ...a level press the and keys simultaneously for 3 seconds while in the level To unlock the level press and for 3 seconds The display will briefly flash confirming that the level was successfully locked...

Page 5: ...ay will show the low limit in LoL value should the input signal be below 1 of the range Scale Scale Defines the indication range for linear inputs 0 50 mV 20 mA 0 5 V and 0 10 V 0 Configurable indicat...

Page 6: ...en The device must be withdrawn from the case and immediately placed in an anti static wrap protected from heat and humidity INPUT CALIBRATION All inputs are factory calibrated and recalibration shoul...

Page 7: ...imum RH 80 up to 30 C For temperatures above 30 C decrease 3 per C Panel protection IP65 for indoor use Installation category II pollution degree 2 altitude 2000 m INPUT Keyboard selection of input ty...

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