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Communication protocol, Holding registers table, Specifications – NOVUS Controller N1200 User 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 a 240 Vac/dc (±10 %), 50 / 60 Hz

Optionally: .......................................................... 24 Vac/dc ±10 %

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 MΩ

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

................................................. 4-20 mA: 15 Ω (+2 Vdc @ 20 mA)

Measurement of Pt100: ............... Three wire type, (α=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, 550Ω 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)