NOVUS N1200 - Manual

1
N1200
Communication Protocol – V10x
1. SERIAL COMMUNICATION
1.1 COMMUNICATION INTERFACE
The optional serial interface RS485 allows to address up to 247 controllers in a
network communicating remotely with a host computer or master controller.
RS485 Interface
• Compatible line signals with RS485 standard
• 2 wire connection from master to up to 31 slaves indicators 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 = D: Bidirectional inverted data line.
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 is implemented, available in 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:
bavd bavd bavd bavd
: Baud rate. All devices with same baud rate.
addr addr addr addr
: Device communication address. Each device must have an exclusive
address.
prty prty prty prty
: 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 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 spll spll spll to spkl spkl spkl spkl .
0001 PV Read: Process Variable.
Write: Not allowed.
Range: Minimum value is the one configured in
spll spll spll spll and
the maximum value is the one configured in spkl spkl spkl spkl . Decimal
point position depends on dppo dppo dppo dppo value.
In case of temperature reading, the value read is always
multiplied by 10, independently of
dppo dppo dppo 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%).
0003 Remote
SP type Read/Write: Selected input type for remote SP.
Range: 0 to 3
0004 Display
value
Read: Current value shown on display.
Write: Current value shown on display.
Range: -1999 to 9999. The range depends on the
displayed parameter.
0005 Prompt
index
Read: Current prompt position in the parameters flowchart.
Write: not allowed. Range: 0000h to 060Ch
Prompt number format: XXYYh, where:
XX
→ menu cycle number (check item 4 -
INSTALLATION/CONNECTIONS)
YY
→
prompt number (index).
0006 Status
Word 1
Read: Status bits. See table 2.
Write: not allowed.
0007 Software
Version
Read: The firmware version of controller. If V1.00, the read
value will be 100.
Write: not allowed.
0008 ID Read: controller identification number.
Write: not allowed.
Values:
1 – N1100; 2 - N2000; 3 - N1500; 48 - 1200
Other values: special instruments.
0009 Status Word
2
Read: Status bits. See table 2.
Write: not allowed.
0010 Status Word
3
Read: Status bits. See table 2.
Write: not allowed.
0011 Ir Ir Ir Ir Integral Rate (in repetitions/min)
Range: 0 to 9999 (0.00 to 99.99)
0012 D D D Dt t t t Derivative Time (in seconds). Range: 0 to 3000 (0.0 to
300.0)
0013 P P P Pb b b b Proportional Band (in percentage)
Range: 0 to 5000 (0.0 to 500.0)
0014 tbas tbas tbas tbas Read/Write: Time base for the ramp and soak programs.
Range: 0 – 1 (seconds/minutes)
0015 C C C Ct t t t Cycle Time (PWM, in seconds)
Range: 5 to 1000 (0.5 to 100.0)
0016 Freq Freq Freq Freq Read/Write: Mains frequency.
Range: 0 – 1 (60/50Hz)
0017 kyst kyst kyst kyst On/Off Control Hysteresis (in selected type engineering
unit).
Range: 0 to spkl spkl spkl spkl - spll spll spll spll
0018 fltr fltr fltr fltr Read/Write: PV digital filter gain.
Range: 0 – 20
0019 ovll ovll ovll ovll Output Low Limit (minimum output power)
Range: 0 to 1000 (0.0 to 100.0%).
0020 ovkl ovkl ovkl ovkl Output High Limit (minimum output power)
Range: 0 to 1000 (0.0 to 100.0%).
0021 AvEn AvEn AvEn AvEn N2000 only.
Auto/Man key Enable –
.
1 Key enabled 0 Key disabled
0022 f.fvnc f.fvnc f.fvnc f.fvnc N2000 only.
F key function.
0
Not used. 7 Controller start/stop.
8 Select remote SP. 9 Ramp and soak hold.
10 Enable ramp and soak profile 1.
0023 Serial
number H
Serial Number High (Upper display).
Range: 0 to 9999. Read only
0024 Serial
number L
Serial Number Low (Lower display).
Range: 0 to 9999. Read only
0025 SV Control Setpoint (Prompt Setpoint).
Range: from
spll spll spll spll to spkl spkl spkl spkl .
0026 spll spll spll spll Setpoint Low limit.
Range: minimum value depends on the input type selected
in type type type type (see Table 1) to spk spk spk spkl l l l .
0027 spkl spkl spkl spkl Setpoint High limit.
Range: minimum value is
spll spll spll spll and maximum depends on
the input type selected in type type type type (see Table 1).
0028 Reserved Internal use.
0029 offs offs offs offs PV offset
Range: from
spll spll spll spll to spkl spkl spkl spkl
.
0030 dppo dppo dppo dppo PV decimal point position
Range: 0 to 3
0
→ 0.000; 1 → 00.00; 2 → 000.0; 3 → 0000
0031 Sp.a1 Sp.a1 Sp.a1 Sp.a1 Alarm 1 Setpoint.
Range: The minimum value is at
spll spll spll spll for non-differential
alarm or spll spll spll spll - splk splk splk splk for differential alarm
The maximum value is at spkl spkl spkl spkl for non-differential alarm or
at spkl spkl spkl spkl - spll spll spll spll for differential alarm.
0032 Sp.a2 Sp.a2 Sp.a2 Sp.a2 Alarm 2 Setpoint. Range: same as in spa1 spa1 spa1 spa1 .
0033 Sp.a3 Sp.a3 Sp.a3 Sp.a3 Alarm 3 Setpoint. Range: same as in spa1 spa1 spa1 spa1 .
0034 Sp.a4 Sp.a4 Sp.a4 Sp.a4 Alarm 4 Setpoint. Range: same as in spa1 spa1 spa1 spa1 .
0035 Fva1 Fva1 Fva1 Fva1 Alarm 1 Function. Range: 0 to 8
0
→ off off off off ; 1 → ierr ierr ierr ierr ; 2 → rs rs rs rs ; 3 → rfai rfai rfai rfai ;
4 → lo lo lo lo ; 5 → ki ki ki ki ; 6 → difl difl difl difl ; 7 → difk difk difk difk ;
8 → dif dif dif dif .
0036 Fva2 Fva2 Fva2 Fva2 Alarm 2 Function. Range: same as in fua1 fua1 fua1 fua1 .
0037 Fva3 Fva3 Fva3 Fva3 Alarm 3 Function. Range: same as in fua1 fua1 fua1 fua1 .
0038 Fva4 Fva4 Fva4 Fva4 Alarm 4 Function. Range: same as in fua1 fua1 fua1 fua1 .
0039 Kya1 Kya1 Kya1 Kya1 Alarm 1 Hysteresis. Range: 0 to 9999 (0.00 to 99.99%)