NOVUS N1040i User Manual
N1040i Indicator
D:
bavd
addr
prty
ALrf
SPLL
SPkL
dently of
dppo
. If
Status Word
Status Word
0011
Freq
FLtr
SP1.E
SP2.E
iNLL
analog input types (used to scale the analog
iNkL
Defines the indication higher limit of the PV
Communication Protocol – V10x
1.1 COMMUNICATION INTERFACE The optional serial interface RS485 allows to address up to 247
indicators in a network communi cating remotel y with a host computer
or master indicator.
RS485 Interface
• Compatible line signals with RS485 standard
• 2 wire connection from master to up to 31 slaves indi cators in a
multidrop bus. It is possible address 247 nodes with multiple
outputs converters.
• Maximum communication distance: 1000 meters
• The RS485 signals are:
D1 = D: Bidirectional data line.
D0 =
C = GND: Optional connection which left communication
better.
General Characteristics
• Optically isolated serial interface
• Programmable baud rate: 1200, 2400, 4800, 9600, 19200,
38400, 57600 or 115200 bps.
• Data Bits: 8
• Parity: None, Even or Odd.
• Stop Bits: 1
Communication Protocol
The MOSBUS RTU slave i s implemented, available i n most SCADA
softwares in the market.
All configurable parameters can be accessed (for reading or writing)
through the Registers Table. Broadcast commands are supported as
well (address 0).
The available Modbus commands are:
03 - Read Holding Register
05 - Force Single Coil (Force Digital Output state)
06 - Preset Single Register
16 - Preset Multiple Registers (Block write to multiple holding
registers)
The registers are arranged in a table in such a way that several
registers can be read in the same request.
1.2 CONFIGURATION OF SERIAL COMMUNICATION PARAMETERS
Two parameters must be configured in the device for serial
communication:
: Baud rate. All devices with same baud rate.
: Device communication address. Each devi ce must have an
exclusive address.
: Paraty.
1.3 REGISTERS TABLE Equivalent to the registers referenced as 4XXXX.
The holding registers are basically a list of the internal indicator
parameters. All registers above address 12 can be read or written. The
registers up to this address in more are read only. Please verify each
case. Each table parameter is a 16 bits two complement signed word.
Holding
Registers
Parameter
0000
Bidirectional inverted data line.
Diferential alar m reference..
Range:
Register Description
to
(or the sensor s pan),
Read: Process Variable.
0001 PV
0002 Reserved Internal use
0003 Reserved Internal use
0004
0005
0006
0007
0008 ID
0009
0010
0016
0017 Reserved
0018
0019 Reserved Internal use.
0020
0021
0022 Reserved Internal use.
0023
0024
0025 Reserved Internal use.
0026
Display
value
Prompt
index
Status Word
Software
Version
~0015 Reserved Internal use.
Serial
number H
Serial
number L
Write: Not allow ed.
In case of temperature reading, the value read
is always multiplied by 10, indepen
value.
Read: Current value s how n on display.
Write: Current value shown on display.
Range: -1999 to 9999. The range depends on
the displayed paramet er.
Read: Current prompt position in the parameter s
flowchart.
Write: not allowed.
Range: 0000h to 060Ch
Prompt number format: XXYYh, where:
XX→ menu cycle number
YY→ prompt number (index)
Read: Status bits . See table 2.
1
Write: not allowed.
Read: The firmware version of indicator
V1.00, the read value will be 100.
Write: not allowed.
Read: indicator identification number: 68
Write: not allowed.
Read: Status bits . See table 2.
2
Write: not allowed.
Read: Status bits . See table 2.
Write: not allowed.
3
Mains frequency.
0→ 60 Hz;
1→ 50 Hz;
PV digital filter gain.
Range: 0 – 20
Controls the presence of the parameter SPA1 in
the indicator operation cycle.
0→ Disables (hides S PA 1);
1→ Enables (shows SPA1);
Controls the presence of the parameter SPA2 in
the indicator operation cycle.
0→ Disables (hides SP A2);
1→ Enables (shows SPA2) ;
Serial number first four digits.
Write: no allowed.
Read: 0 to 9999.
Serial number last four digits.
Write: no allowed.
Read: 0 to 9999.
Defines the minimum PV indication value for
inputs).
0027
0028 Reserved Internal use.
indication (used to scale the analog inputs).
0029
OFFS
iNLL
iNkL
.
DP.PO
SP.A1
SP.A2
FvA1
off
dif
difL
Difk
ierr
FvA2
kyA1
kyA2
tYPE
Addr
Range: 1 to 247.
bAvd
bLA1
1→ initial blocking enabled.
bLA2
retr
vnit
rtll
rtkl
FLSH
Allows visual signalization of an alarm
occurrence by flashing the indication of PV in
0082~0085
Rstr
Prot
Check instruction manual for
Prty
Off
PV offset.
Range: from
PV decimal point posi tion
0030
Range: 0 to 3
0→X.XXX; 1→XX.XX; 2→XXX.X; 3→XXXX
0031
0032
Alarm 1 Setpoint.
Alarm 2 Setpoint.
0033 Reserved Internal use.
0034 Reserved Internal use.
0035
Alarm function. Range: 0 to 6
0→
0036
4→
0037~0038 Reserved Internal use.
0039
0040
Alarm 1 hysteresis. Range: 0 to 9999
Alarm 2 hysteresis. Range: 0 to 9999
0041 Reserved Internal use.
0042 Reserved Internal use.
0043
0044
Input type.
Range: 0 to 22. See operation manual.
Communication slave address.
Communication Baud-Rate. Range: 0 to 7
0045
0→1200; 1→2400; 2→4800;
3→9600; 4→19200; 5→32400;
6→57600; 7→115200.
0046~0049 Reserved Internal use.
0050
Blocks the alarm when the indicator is
energized.
When enabled, the alarm will not be active at
power-up, waiting for PV (Process Variable) to
reach a non-alarm situation. From this point on
0051
the alarm will be free to actuate should a new
alarm situation occur.
0→ no initial blocking;
0052 Reserved Internal use.
0053 Reserved Internal use.
Key simulation.
1→ Key press P
2→ Key press
0054
Key
4→ Key press
8→ Key press <
9→ Key press P (go to next level of
0055~0059 Reserved Internal use.
Temperature unit. Range: 0 to 1.
0060
8→ 0~20 mA
9→ 4~20 mA
0061~0066 Reserved Internal use.
0067
Temperature unit. Range: 0 to 1
0→°C; 1→°F.
0068~0074 Reserved Internal use.
Calibration
0075
0076
0077 Reserved Internal use.
0078 Reserved Internal use.
PV First
Calibration
PV End
Enter the low input value currently applied in the
PV input for calibration purposes.
Enter the high input value currently applied in
the PV input for calibration purposes.
to
; 1→lo; 2→ki; 3→
; 5→
parameters.
; 6→
0079
0088
0081
Retransmission low limit of PV.
Retransmission high limit of PV.
the operation level.
0→ Disables
1→ Enables
Reserved Internal use.
Restores origi nal default calibrat ion..
0086
;
;
Range: 0 to 1;
0→ DO NOT restore;
1→ Restore calibration.
0087 Reserved Internal use.
Password protection level.
0088
Range: 1 to 3.
further details.
Serial communication parity. Range: 0 t o 2.
0089
0 - > No parity;
1 - > Even parity;
2 - > Odd parity;
1.4 STATUS WORDS
Register
Status Word 1
bit 0 - Alarm 1 (0- inactive; 1-active)
bit 1 - Alarm 2 (0bit 2~7 – Reserved
bit 8 - Hardware detection value
bit 9 - Hardware detection value
bit 10~15 - Reserved
Status Word 2
bit 0~4 – Reserved
bit 5 - Alarm 1 power-up i nhibit (0-no; 1-yes)
bit 6 - Alarm 2 power-up inhibit (0-no; 1-yes)
bit 7~8 - Reserved
bit 9 - Unit (0-°C; 1-°F)
bit 10~15 - Reserved
Status Word 3
bit 0 – Very low PV conversion:
(0-no; 1-yes)
bit 1 – Negative conversion after calibration:
(0-no; 1-yes)
bit 2 – Very high PV conversion:
(0-no; 1-yes)
bit 3 – Exceeded linearization limi t:
(0-noo; 1-yes)
bit 4 – Very high Pt100 cable resistance:
(0-no; 1-yes)
bit 5 – Self zero conversion out of range:
(0-no; 1-yes)
bit 6 - Self span convers ion out of range:
(0-não; 1-sim)
bit 7~15 - Reserved
Table 2 - Values of Stat us Words
Writing to a digital output is only allowed if the corresponding alarm is
configured as “
”.
Coil Status Output description
0 Output 1 Status 1 (ALM1)
1 Output 1 Status 2 (ALM2)
Value format
inactive; 1- active)
1.5 EXCEPTION RESPONSES – ERROR CONDITIONS
The MODBUS RTU protocol checks the CRC in the data blocks received.
Reception errors are detected by the CRC, causing the
the packet, not s ending any reply to the master.
After receiving an error-free packet, the
indicator processes the packet and
verifies whether the request is valid or not, sending back an exception error
indicator to discard
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