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Novus N1200, Instruction Manual

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Controller N1200  

NOVUS AUTOMATION 

12 / 13 

 

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: 

03 - 

Read Holding Register

 

06 - 

Preset Single Register

 

05 - 

Force Single Coil

 

16 - 

Preset Multiple Register

 

Holding Registers Table

 

Follows a description  of the usual communication  registers. For full 
documentation  download  the  Registers  Table  for  Serial 
Communication  in  the  N1200  section  of  our  web  site  – 

www.novusautomation.com

. 

All registers are 16 bit signed integers.  

Address  Parameter 

Register Description 

0000  Active SP  Read:  Active  control  SP  (main  SP,  from 

ramp and soak or from remote SP). 
Write: to main SP. 
Range: from 

spll

 to 

spkl

. 

0001 

PV 

Read: Process Variable. 
Write: Not allowed. 
Range:  Minimum  value  is  the  one 
configured in 

spll

 and the maximum value 

is  the  one  configured  in 

spkl

.  Decimal 

point position depends on 

dppo

 value. 

In  case  of  temperature  reading,  the  value 
read  is  always  multiplied  by  10, 
independently of 

dppo

 value. 

0002 

MV 

Read: Output Power in automatic or manual 
mode. 
Write: Not allowed. See address 28. 
Range: 0 to 1000 (0.0 to 100.0 %). 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

SPECIFICATIONS  

DIMENSIONS

: ...................................... 48 x 48 x 110 mm (1 / 16 DIN) 

 ............................................................ Approximate Weight: 150 g  

CUTOUT IN THE PANEL

:  ................. 45.5 x 45.5 mm (+0.5 -0.0 mm) 

POWER SUPPLY

.................... 100 to 240 Vac/dc (±10 %), 50 / 60 Hz 

Optionally 24V: .................. 12 to 24 Vdc / 24 Vac (-10 % / +20 %) 
Maximum consumption: ........................................................  9 VA 

ENVIRONMENTAL CONDITIONS

: 

Operation Temperature: ...............................................  5 to 50 

C  

Relative Humidity: .......................................... 80 % max. @ 30 ºC 

For temperatures above 30 ºC, reduce 3 % for each ºC  

Internal  Use;  Category  of  installation  II,  Degree  of  pollution  2; 
altitude < 2000 m  

INPUT

 ............. T/C, Pt100, voltage and current (according to 

Table 1

)  

Internal Resolution: 

 .................................. 32767 levels (15 bits)  

Resolution of Display: 

.... 12000 levels (from - 1999 up to 9999)  

Rate of input reading: 

 ................................. up to 55 per second  

Precision: 

 . Thermocouples 

J

, 

K

, 

T

, 

E:

 0.25 % of the 

span

 

1 ºC  

 ................... Thermocouples 

N

, 

R

, 

S

, 

B

: 0.25 % of the 

span

 

3 ºC  

 ................................................................ Pt100: 0.2 % of the 

span

  

 .............................. 4-20 mA, 0-50 mV, 0-5 Vdc: 0.2 % of the 

span

  

Input Impedance:

 0-50 mV, Pt100 and Thermocouples: >10 M

 

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

 

 ................................................. 4-20 mA: 15 

 (+2 Vdc @ 20 mA) 

Measurement of Pt100: 

 ............... Three wire type, (

=0.00385)  

with  compensation  for  cable  length,  excitation  current  of  0.170 
mA.  
All input and output types are factory-calibrated. Thermocouples 
according to standard NBR 12771 / 99, RTD’s NBR 13773 / 97;  

ANALOGICAL OUTPUT (I/O5): 

 ..... 0-20 mA or 4-20 mA, 550

 max. 

31000 levels, insulated, for control or retransmission of PV and SP  

CONTROL OUTPUT: 

 

2 Relays SPST-NA (I/O1 and I/O2): 1.5 A / 240 Vac, general use  
 .......................... 1 Relay SPDT (I/O3): 3 A / 250 Vac, general use  
 .......................... Voltage pulse for SSR (I/O5): 10 V max. / 20 mA 
 ............. Voltage pulse for SSR (I/O3 and I/O4): 5 V max. / 20 mA 

ELECTROMAGNETIC COMPATIBILITY:

 ............... EN 61326-1:1997  

and EN 61326-1 / A1:1998 

SAFETY:

 ........................ EN61010-1:1993 and EN61010-1 / A2:1995 

USB 

INTERFACE 

2.0, 

CDC 

CLASS 

(VIRTUAL 

COMMUNICATIONS PORT), MODBUS RTU PROTOCOL. 
SPECIFIC CONNECTIONS FOR TYPE FORK TERMINALS OF 6.3 
MM;  
FRONT PANEL

: IP65, polycarbonate - UL94 V-2; 

 

CASE

: IP30, ABS+PC UL94 V-0;  

STARTS  UP  OPERATION

:  after  3  seconds  connected  to  the  power 

supply;

  

CERTIFICATIONS: 

 ........................................ CE / UL (FILE: 300526)

 

 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

Summary of Contents for N1200

Page 1: ...meters Automatic Manual function with bumpless transfer Four modes of independents alarms with functions of minimum maximum differential deviation open sensor and event Timer functions that can be associated to the alarms Retransmission of PV or SP in 0 20 mA or 4 20 mA Input for remote setpoint Digital input with 5 functions Programmable soft start 20 setpoint profile programs with 9 segments eac...

Page 2: ...xecution of the selected setpoint profile program Available for I O5 or I O3 and I O4 when available Closed Enables execution of the program Open Interrupts freezes execution of the program Note Even when the execution of the program is interrupted the control output remains active and controlling the process at the point Setpoint of interruption The program will resume its normal execution starti...

Page 3: ...th this feature enabled the controller uses for display and control a value that corresponds to the square root of the applied input signal Available only for the inputs belonging to the group of linear analogic signals 0 20 mA 4 20 mA 0 50 mV 0 5 V and 0 10 V ANALOG RETRANSMISSION OF PV AND SP The analog output when not used for control purposes is available for retransmitting the PV and SP value...

Page 4: ... your supervisory software to conduct the MONITORING process Follow the procedure below to use the USB communication of the equipment Download the NConfig software from our website and install it on your computer The USB drivers necessary for operating the communication will be installed together with the software Connect the USB cable between the equipment and the computer The controller does not...

Page 5: ... product specifications Figure 6a I O3 or I O4 with output pulse for SSR Figure 6b I O5 with output pulse for SSR I O3 I O4 and I O5 can also be configured as digital outputs I O3 and I O4 provide a 5 Vdc output signal whereas I O5 a 12 Vdc signal An example of usage is shown in Figure 6a for the I O3 and in Figure 6b for the I O5 I O5 is electrically isolated from the sensor input OPERATION The c...

Page 6: ...ed 0 does not execute program 1 to 20 number of the program to be executed With enabled outputs RUN YES the program starts right after the program is selected p seg Screen for indication only When a ramp and soak program is active this parameter shows the number of the segment under execution from 1 to 9 t seg Screen for indication only When a ramp and soak program is in execution it shows the rem...

Page 7: ...r up waiting for PV Process Variable to reach a non alarm situation From this point on the alarm will be free to actuate should a new alarm situation occur xya1 ALARM HYSTERESIS Defines the difference between the value of PV at which the alarm is xya2 xya3 xya4 triggered and the value at which it is turned off in engineering units A1t1 A2t1 A3t1 A4t1 Alarm Time t1 Defines the temporization time t1...

Page 8: ...l I O 3 according to the Table 2 Io 4 Function of the channel I O 4 Selection of the function used in the channel I O 4 according to the Table 2 Io 5 Function of the channel I O 5 Selection of the function used in the channel I O 5 according to the Table 2 CALIBRATION CYCLE All of the input and output types are calibrated in the factory If a recalibration is required this should be carried out by ...

Page 9: ...des the parameters on the protected levels If no password is entered the parameters of the protected cycles can only be visualized The Access Code is defined by the user in the parameter Password Change PAS present in the Calibration level The factory default for the password code is 1111 Protection of the access code The protection system built into the controller blocks for 10 minutes the access...

Page 10: ...itiated by the controller whenever the control performance is worse than the one found after the previous tuning In order to activate the performance supervision and auto adaptative tuning the parameter ATUN must be adjusted for SELF RSLF or TGHT The controller s behavior during the auto adaptative tuning will depend on the worsening of the present performance If the maladjustment is small the tun...

Page 11: ...ignal that corresponds to a value a little lower than the upper limit of indication f Access the parameter inLC With the keys and adjust the display reading such as to match the applied signal Then press the P key Note When checking the controller calibration with a Pt100 simulator pay attention to the simulator minimum excitation current requirement which may not be compatible with the 0 170 mA e...

Page 12: ...Vdc 24 Vac 10 20 Maximum consumption 9 VA ENVIRONMENTAL CONDITIONS Operation Temperature 5 to 50 C Relative Humidity 80 max 30 ºC For temperatures above 30 ºC reduce 3 for each ºC Internal Use Category of installation II Degree of pollution 2 altitude 2000 m INPUT T C Pt100 voltage and current according to Table 1 Internal Resolution 32767 levels 15 bits Resolution of Display 12000 levels from 199...

Page 13: ... Relay in I O3 DIO Digital I Os in I O3 and I O4 HBD Burnt Out Resistance detection C Digital Communication Blank basic version without serial communication 485 RS485 Modbus protocol D Power Supply Blank basic version 100 to 240 Vac dc input 24V 12 to 24 Vdc 24 Vac input voltage WARRANTY Warranty conditions are available on our web site www novusautomation com warranty ...

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