ICON ITC-350 Tank Level Display Plus Controller Owner’s Manual
- August 16, 2024
- Icon
Table of Contents
ITC-350 Tank Level Display Plus Controller
“`html
Specifications
-
Display: LED, 4 x 20mm High, Adjustable Color
& Brightness -
Displayed Values: -999 to 9999
-
Transmission Parameters: 1200 to 115200 bit/s,
8N1 / 8N2 -
Input Signal: 0-4-20mA, 0-10V, 0-150mV RTD,
pH -
Standard Voltage: 85-260V AC/DC, 16-35V AC,
19-50V DC -
Output Signal: Passive current output
-
Accuracy: According to IEC 60770 – Limit Point
Adjustment, Non-Linearity, Hysteresis, Repeatability -
Operating Temperatures: – Contact Factory for
different options -
Materials (Wetted): Housing – NORYL
Product Usage Instructions
User Safety Guidelines
-
Do not use the unit in areas threatened with excessive shocks,
vibrations, dust, humidity, corrosive gases, and oils. -
Avoid using the unit in areas at risk of explosions or with
significant temperature variations. -
The unit uses dangerous voltage; always switch it off and
disconnect from power before troubleshooting. -
Avoid disassembling, repairing, or modifying the unit by
yourself.
Device Installation
-
The unit is designed for mounting inside housings (control
panel, switchboard) ensuring protection against surges and
interference. -
Metal housings must be grounded according to regulations.
FAQ
Q: What should I do if the unit malfunctions?
A: If there is a risk of serious threat to safety or property
due to a malfunction, use additional independent systems to prevent
the threat and contact an authorized service center for
repairs.
Q: Can I repair the unit myself if it’s defective?
A: No, do not attempt to repair or modify the unit yourself.
Disconnect defective units and submit them for repairs at an
authorized service center.
“`
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Quick Start Manual
Read the user’s manual carefully before starting to use the unit or software. Producer reserves the right to implement changes without prior notice.
24-0352 © Icon Process Controls Ltd.
1
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Symbol Explanation
This symbol denotes especially important guidelines concerning the
installation and operation of the device. Not complying with the guidelines
denoted by this symbol may cause an accident, damage or equipment destruction.
Basic Requirements | User Safety
Do not use the unit in areas threatened with excessive shocks, vibrations,
dust, humidity, corrosive gasses and oils.
Do not use the unit in areas where there is risk of explosions.
Do not use the unit in areas with significant temperature variations, exposure
to condensation or ice.
The manufacturer is not responsible for any damages caused by inappropriate
installation, not maintaining the proper environmental conditions and using
the unit contrary to its assignment.
If in the case of a unit malfunction there is a risk of a serious threat to
the safety of people or property additional, independent systems and solutions
to prevent such a threat must be used.
The unit uses dangerous voltage that can cause a lethal accident. The unit
must be switched off and disconnected from the power supply prior to starting
installation of troubleshooting (in the case of malfunction).
Do not attempt to disassemble, repair or modify the unit yourself. The unit
has no user serviceable parts.
Defective units must be disconnected and submitted for repairs at an
authorized service center.
Specifications
General
Display Displayed Values Transmission Parameters
LED | 4 x 20mm High | Adjustable Color & Brightness -999 – 9999 1200…115200 bit/s, 8N1 / 8N2
Input Signal | Supply
Standard Voltage
Universal Input: 0 | 4-20mA | 0-10V | 0-150mV RTD | pH 85 – 260V AC/DC | 16 – 35V AC, 19 – 50V DC*
Output Signal | Supply
Standard Voltage Passive current output*
ITC450: 4 x Relays (5A) | 2 x Relays (5A) + 4-20mA · ITC350: 1 x Relay (5A) + 4-20mA 24VDC 4-20mA | (Operating Range Max. 2.8 – 24mA)
Performance
Accuracy
0.1% @ 25°C One Digit
Accuracy According to IEC 60770 – Limit Point Adjustment | Non-Linearity | Hysteresis | Repeatability
Temperatures
Operating Temperatures
-40 – 158°F | -40 – 70°C
Materials | Wetted
Housing
NORYL
*Contact Factory for different options
Model Selection
ITC 450 — Industrial Level Controller
ITC 350 — Industrial Level Controller
Part Number
Input
Output
Part Number
Input
Output
ITC 450-1121
4-20 mA
4 Relay
ITC 350-1119
4-20 mA
–
PC
ITC 450-1129
4-20 mA
4-20 mA + 2 Relay
ITC 350-1120
4-20 mA
4-20 mA + 1x (5A) Relay
24-0352 © Icon Process Controls Ltd.
2
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Features
Super `Sunbright’ LED Display
8 Levels of Brightness
ITC 450
4 Configurable (5 AMP) Relays
Rugged Panel Mount
Design
24VDC Power Supply
to Sensor
ENC-100 NEMA 4X Enclosure + ITC 450 Display (Optional)
LP100 Junction Box
4-20mA
AL R1 R2 R3 R4
R
ESC ENTER MENU
Push Button Programming
ITC 450 Display + ENC-100 Enclosure
(Optional)
100 Series Submersible Level Sensor
Optional Remote
1 Configurable (5A) Relay
ITC 350
Function of Push Buttons
Symbol used in the manual : [ESC/MENU] Functions: · Enter to main menu (press
and hold for at least 3 sec.) · Exit the current Screen and Enter to previous
menu (or measure mode) · Cancel the changes made in parameter being edited
Symbol used in the manual : [ENTER] Functions: · Start to edit the parameter ·
Enter into the sub-menu · Confirmation of changes made in parameter being
edited
Symbol used in the manual : [ ] [ ] Functions: · Change of the present menu · Modification of the parameter value · Change of the display mode
24-0352 © Icon Process Controls Ltd.
3
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Device Installation
1. The unit is designed for mounting inside housings (control panel, switchboard) insuring appropriate protection against surges and interference. Metal housings must be connected to ground in a way that complies with the governing regulations.
2. Disconnect the power supply prior to starting assembly.
3. Check the connections are wired correctly prior to switching the unit on.
In order to install the unit, a 90.5 x 43 mm mounting hole (Figure A, B) must
be prepared. The thickness of the material of which the panel is made must not
exceed 5mm. When preparing the mounting hole take the grooves for catches
located on both sides of the housing into consideration (Figure A, B). Place
the unit in the mounting hole
inserting it from the front side of the panel, and then fix it using the
brackets (Figure C). The minimum distances between the centre points of
multiple units – due to the thermal and mechanical conditions of operation –
are 115 mm x 67mm (Figure D).
90.5 mm
92mm
13mm 8mm
43mm
8mm 13mm
1mm
1mm
max. 5mm
Figure A. — Recommended mounting hole dimensions
92mm
max. 5mm
Figure B. — Allowable mounting hole dimensions 115mm
43mm
67mm
8.5mm 16mm
5mm
12mm 10mm
Figure C. Installing of brackets, and dimensions of connectors
Figure D. Minimum distances when assembly of a number of units
WIRE INSTALLATION
· Carefully remove wire terminal from socket · Loosen set screw · Insert wire
· Tighten set screw · Replace wire terminal into socket
24-0352 © Icon Process Controls Ltd.
Due to possible significant interference in industrial installations,
appropriate measures assuring correct operation of the unit must be applied.
The unit is not equipped with an internal fuse or power supply circuit
breaker. For this reason, an external time-delay cut-out fuse with a small
nominal current value must be used (recommended bipolar, max. 2A) and a power
supply circuitbreaker located near the unit. In the case of using a monopolar
fuse it must be mounted on the phase cable.
4
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Wiring Diagrams
All connections must be made while power supply is disconnected.
Power supply
R4 (optional)
(depending on version)
+24V +5%, -10%
RS – 485
Imax = 100mA GND DATA+
+ Uo –
DATA-
12
34
56789
10 11 12 13 14 15
31 32 33 34 35
31 34
;
+D
;
D 33 34
R1
R2
R3
(optional) (optional) (optional) RTD
RTD
mA
Figure E. — Terminals description (relay outputs)
+-
TC
Power
+24V +5%, -10% RS – 485
+ supply (optional) Imax = 100mA
GND DATA+
(depending on version) OC4
–
DATA
+-
12
34
56789
10 11 12 13 14 15
– +- +- + OC1 OC2 OC3 31
(optional) (optional) (optional)
31 32 33 34 35
34
mV V
33 34
OC1 ÷ OC4: Umax = 30V DC, Imax = 30mA, Pmax = 100mW
RTD
RTD
+-
mA
TC
Figure F. — Terminals description (OC-type outputs)
Power
ACTIVE
supply current output
(optional)
– (depending on version)
12
34
+24V +5%, -10% RS – 485
Imax = 100mA
GND
DATA+
+ Uo –
DATA
56789
10 11 12 13 14 15
31 32 33 34 35
ALML ALML
31 32
&
91
&
1
33 34
R1
R2
(optional) (optional)
RTD
RTD
+-
mA
TC
Figure G. — Terminals description (relay and active current outputs)
24-0352 © Icon Process Controls Ltd.
5
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Wiring Diagrams
All connections must be made while power supply is disconnected.
Power
ACTIVE
supply current output
(optional)
– (depending on version)
+24V +5%, -10%
RS- 485
Imax = 100mA GND DATA+
+ Uo –
DATA
12
34
56789
10 11 12 13 14 15
– + + – n.c. n.c.
OC1 OC2 (opcja) (opcja)
31
31 32 33 34 35
34
mV V
33 34
OC1 ÷ OC2: Umax = 30V DC,
Imax = 30mA, Pmax = 100mW
RTD
RTD
+-
mA
TC
Figure H. — Terminals description (OC-type and active current outputs)
Figure I. — Terminals description (relay and passive current outputs)
Figure J. — Terminals description (OC-type and passive current outputs)
24-0352 © Icon Process Controls Ltd.
6
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Wiring Diagrams
All connections must be made while power supply is disconnected.
Figure K. — Terminals description (relay and active voltage outputs)
Figure L. — Terminals description (OC-type and active voltage outputs)
Figure M. — Connection of 2-wire current converters
24-0352 © Icon Process Controls Ltd.
7
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Wiring Diagrams
All connections must be made while power supply is disconnected.
Figure N. — Connection of 3-wire current converters
(Figure 4.17b)
Figure O. — Connection of voltage converters
4.17a
Temperature sensor can be connected to the device in typical precision of measurement 4-wire circuit is recommended.
4-wire
circurirte(cFigure
P-a)
or
3-wire
c4ir.c1u7iat (Figure
P-b).
Due
to
(FigIuf r2ew4ir.1e7cbir)cuit is used, the recsiissitoannc2e- wofirweirceosnsnheoculdobneisasnsomt rall as possible, to avoid of measurement errors. Measured
value can be corrected (constant correcton) using “toFS” parameter from menu “inPt”. Due to low precision 2-wire
connection is not recommended.on
cul
When 4-wires or 2-wciroensnceocnnoecntion is used, the resistance of parrticcuullar wrireesc(Ra ÷ Rd) CAN BE DIFFERENT. When 3-wires creosnisnptearcnotcpioeen.rTichsoeumsreepsdeis, ntthasneacreeosonisf topafanrictt’eiscuorfleacpsrisiaswirottiacrnenu2clsa- ehrw.owTuirihlerdecsnroo(eRntsanbise÷etcaRgndroec)aneMteoiUsrfSntpThoaaBtrnEr2cI0DuElaN.rTwICirAL to enable proper compensation of it’s
on
cul
proper
compencsaoa)nnoenco3fo1int’3s2re3s3ist3a4nce.
b)
Th
rcul resist3an1c3e2of33pa3r4cular
c)
wir
n.c.
31 32 33 34
n.c. n.c.
Ra Rb Rc : Rd
Ra
Rc : Rd
Ra
Rc
RTD Ra, Rb, Rc, Rd can be different
RTD Ra = Rc = Rd
RTD Ra, Rc can be different
Figure P. — Connection of RTD sensors:
a) 4-wires circuit; b) 3-wires circuit; c) 2-wires circuit
24-0352 © Icon Process Controls Ltd.
8
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
nec Wiring Diagrams
deteconnec
All connections must be made while power supply is disconnected.
.
The connection circuit should not be changed while unit is powered. While
using TC, RTD or voltage inputs (0-150mV)
the device is able to detect wire breaks. Wire breaks are detected within
about 2 seconds. For connectors number 32
and d33etoefcRToDninput it may take up to about 7 seconds. During detection
measurem. ents will be incorrect. If wire break is
detected “S.Err” (sensor error) message is displayed.
. Figure Q. — Connection of power supply and relays
induc
.
Contactsaodfdreilaoynoaultputs are not equipped with spark suppressors. Whilme uins.e the relay outputs for switching of inductive
loads (coils, contactors, power relays, electromagnets, m(obteorseertc) .) it is required to usloe. aaddd. itional suppression circuit (typically clloifaeapdoac.fcIonritenocltaraoay4dnc7csdtnoesiFnqr/tuiosamenecnitasinsc.nl.erd2iso5uef0csuV. sAinCginthseersieuspwpriethss1i0o0nRc/i5rcWuirte, tshisetoler)v, ecloonfngeecnteedramictneidnp.aerlaelcletrlotomraeglanyetteicrmdiisntaulrsboarn(cb.eesttiserlo) dwierer,catlnydotnhtehe
(beer)
load.
c
contacts rises.
Figure R. — Examples of suppression circuit connection: a) to relay terminals; b) to the inductive load
24-0352 © Icon Process Controls Ltd.
9
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Wiring Diagrams
All connections must be made while power supply is disconnected.
Figure S. — Example of OC-type outputs connection
Figure T. — Example of active current outputs connection (for device with active current output only)
Figure U. — Example of passive current outputs connection (for device with passive current output only)
Figure V. — Example of active voltage outputs connection (for device with active output only)
24-0352 © Icon Process Controls Ltd.
10
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Programming 4-20mA Input
STEPS
DISPLAY
1
Main Display
3 Sec.
2
Relay 1
5x Note: 2x for ITC 350
3
Input
4
Type
4x
5
Low C
6
Set 4mA Value
2 Sec.
7
Save Value
8
High C
9
Set 20mA Value
2 Sec.
10
Save Value
11
Return to Main Display
2x
24-0352 © Icon Process Controls Ltd.
OPERATION
MAIN DISPLAY
RELAY 1 Settings
INPUT Menu
INPUT Type
Enter LOW C | 4mA | Std = 0
Press Press
or to change digit to advance to next digit
SAVE SELECTION and advance to High C
Enter HIGH C | 20mA
Press Press
or to change digit to advance to next digit
SAVE SELECTION
Return to MAIN DISPLAY
11
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Programming 4-20mA Output
STEPS
DISPLAY
1
Main Display
3 Sec.
2
Relay 1
6x Note: 3x for ITC 350
3
Output
4
Output Mode
5
Output Low
6
Set 4mA Value
2 Sec.
7
Save Value
8
Output High
9
Set 20mA Value
2 Sec.
10
Save Value
11
Return to Main Display
2x
24-0352 © Icon Process Controls Ltd.
OPERATION
MAIN DISPLAY
RELAY 1 Settings
OUTPUT MENU
OUTPUT MODE
Enter OUTPUT LOW | 4mA | Std = 0
Press Press
or to change digit to advance to next digit
Save Selection and advance to Output High
Enter OUTPUT High | 20mA
Press Press
or to change digit to advance to next digit
SAVE SELECTION
Return to MAIN DISPLAY
12
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Calculating 4-20mA Input
Sensor Type Submersible Ultrasonic
20mA Set Point Range of sensor / Specific Gravity = 20mA (for inches) Tank Height
Radar
Tank Height
Programming Relays
STEPS
1
2
Main Display
3 Sec.
Relay 1
DISPLAY
3
Output
4
Set Relay Value
2 Sec.
5
Save Value
6
Set Hysterisis
7
Save Value
2 Sec.
8
Return to Main Display
8
Return to Main Display
2x
OPERATION
MAIN DISPLAY
RELAY 1 Settings
OUTPUT MENU
Press Press
or to change digit to advance to next digit
Save Selection and advance to Hysterisis
Hysterisis Settings
Press Press
or to change digit to advance to next digit
Save Selection
Press Button (2x) (Home Screen | Current Level Reading appears on display)
24-0352 ©10Icon ProcessSCaovnetVroallsuLetd.
13
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Pump Controller with Dual-Pump Alternation
The ITC 450 can be used as an affordable pump controller when combined with a
continuous level transmitter. One of the most common pump control applications
is shown below –controlling and alternating two pumps. The goal is to control
the level between 1000 and 6000 gallons. The main pump turns on when the level
reaches 6000 gallons and pumps down to 1000 gallons and then shuts the pump
off. The next cycle, the backup pump turns on at 6000 gallons and shuts off at
1000 gallons. If at any time the active pump can’t keep the level below 7000
gallons, the other pump would come on as well.
Pump Alternation Control Operation
24-0352 © Icon Process Controls Ltd.
14
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Pump Controller with Dual-Pump Alternation
Relay #1 turns the main pump on at 6000 gallons and turns it off at 1000 gallons.
4-20mA
1
Junction Box
ITC 450 Level Display
12
34
56789
10 11 12 13 14 15
31 32 33 34 35
ON 6000
OFF 1000
100 Series Level Sensor
Control Relay
Control Relay
ON
Main Pump
OFF
Backup Pump
2
Junction Box
4-20mA
ITC 450 Level Display
12
34
56789
10 11 12 13 14 15
31 32 33 34 35
With the Pump Alternation
ON 6000
feature activated, the next
time the level reaches 6000
gallons, relay #2 starts the
backup pump.
OFF
1000
100 Series Level Sensor
24-0352 © Icon Process Controls Ltd.
Control Relay
Control Relay
OFF Main Pump
ON Backup Pump
15
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
Pump Controller with Dual-Pump Alternation
3
ON 7000
If the pump is not able
ON 6000
to keep up, and the level
reaches 7000 gallons, the
other relay will start the
inactive pump as well
OFF
1000
Junction Box
4-20mA
100 Series Level Sensor
ITC 450 Level Display
12
34
56789
10 11 12 13 14 15
31 32 33 34 35
Control Relay
Control Relay
ON Main Pump
ON Backup Pump
4
ON 7000
ON 6000
When the level falls below 1000 gallons, both pumps will turn off.
OFF 1000
Junction Box
4-20mA
100 Series Level Sensor
24-0352 © Icon Process Controls Ltd.
ITC 450 Level Display
12
34
56789
10 11 12 13 14 15
31 32 33 34 35
Control Relay
Control Relay
OFF
Main Pump
OFF
Backup Pump
16
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
RS485 Modbus Programming
11. THE MODBUS PROTOCOL HANDLING
Transmission parameters: 1 start bit, 8 data bits, 1 or 2 stop bit (2 bits are send, 1 and 2 bits
are accepted when receive), no parity control
Baud rate:
selectable from: 1200 to 115200 bits/second
Transmission protocol: MODBUS RTU compatible
The device parameters and display value are available via RS-485 interface, as
HOLDINGtype registers (numeric values are given in U2 code) of Modbus RTU
protocol. The registers (or groups of the registers) can be read by 03h
function, and wrote by 06h (single registers) or 10h (group of the registers)
accordingly to Modbus RTU specification. Maximum group size for 03h and 10h
functions can not exceeds 16 registers (for single frame).
i The device interprets the broadcast messages, but then do not sends the
answers.
11.1. LIST OF REGISTERS
Register Write Range
Register description
01h
No -999 ÷ 9999 Measurement value (no decimal point)
The status of the current measurement; 0h – data valid; A0h – top
02h
No 0h, A0h, 60h border of the measurement range is exceeded; 60h – bottom border
of the measurement range is exceeded;
03h Yes
0 ÷ 3
“Pnt ” parameter in “InPt” menu (decimal point position) 0 – ” 0″; 1 – ” 0.0″; 2 – ” 0.00″; 3 – “0.000”
State of the relays and alarm LED (binary format) (1 – on, 0 – off): 00000000 000e00ba 04h Yes see descr. a – relay R1; b – relay R2; e – alarm LED; If written, only a, b bits are important (others are ignored) these bits allows user to control the relays via RS-485 interface
State of active current output, expressed in 1/256 mA units it Yes 0h ÷
1800h means that high byte express integer part, and low byte fractional
part of desired output current.
05h1
State of passive current output, expressed in 1/256 mA units it Yes
2CCh÷1800h means that high byte express integer part, and low byte fractional
part of desired output current.
State of active voltage output, expressed in 1/512 V units it means Yes 0h ÷
1600h that high byte express integer part, and low byte fractional part of
desired output voltage.
06h
No -999 ÷ 9999 Peak (drop) value (no decimal point)
10h Yes
0 ÷ 5
“tyPE” parameter in “InPt” menu (nominal input range). 0 – 0-20 mA range; 1 – 4-20 mA range; 2 – 0-10 V range; 3 – 2-10 V range; 4 – 0-5 V range; 5 – 1-5 V range
11h Yes
0 ÷ 5
“CHAr” parameter in “InPt” menu (characteristic type) 0 – linear ; 1 – square; 2 – square root; 3 – user defined; 4 – volume characteristics of a cylindrical tank in the vertical position; 5 volume characteristics of a cylindrical tank in the horizontal position
12h Yes
0 ÷ 5
“FiLt” parameter in “InPt” menu (measurement filtering rate)
24-0352 © Icon Process Controls Ltd.
17
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
RS485 Modbus Programming
Register Write
13h Yes
14h Yes
15h Yes
16h Yes
17h Yes
19h Yes
1Ah Yes
1Bh Yes
1Ch Yes
1Dh Yes
1Eh Yes
20h2
Yes
21h
No
22h3
Yes
23h4
Yes
24h Yes
25h Yes
27h Yes
2Dh Yes 2Fh Yes 30h Yes 31h Yes 32h Yes
33h Yes
Range
Register description
0 ÷ 3
“Pnt “parameter in “InPt” menu (the copy of 03h register, decimal point position) 0 – ” 0″; 1 – ” 0.0″; 2 – ” 0.00″; 3 – “0.000”
-999 ÷ 9999 “Lo C” parameter in “InPt” menu, no decimal point included
-999 ÷ 9999 “Hi C” parameter in “InPt” menu, no decimal point included
0 ÷ 999 “Lo r” parameter in “InPt” menu, in 0.1%
0 ÷ 199 “Hi r” parameter in “InPt” menu, in 0.1%
0 ÷ 9999 “t h1” parameter in “InPt” menu, no decimal point included
0 ÷ 9999 “t h2” parameter in “InPt” menu, no decimal point included
0 ÷ 9999 “t h3” parameter in “InPt” menu, no decimal point included
0 ÷ 9999 “t d” parameter in “InPt” menu, no decimal point included
0 ÷ 9999 “t Sn” parameter in “InPt” menu, no decimal point included
0 ÷ 9999 “t Sh” parameter in “InPt” menu, no decimal point included
0 ÷ 199 Device address
21F0h Device identification code (ID)
0 ÷ 7
“bAud” parameter in “rS” menu (baud rate); 0 – 1200 baud; 1 – 2400 baud; 2 – 4800 baud; 3 – 9600 baud; 4 – 19200 baud; 5 – 38400 baud; 6 – 57600 baud; 7 – 115200 baud
0 ÷ 1
“mbAc” parameter in “rS” menu (permission to write registers via RS-485 interface); 0 – write denied ; 1 – write allowed
see descr.
Parameters of “SECU” menu (binary format (0 – ,,oFF”, 1 – ,,on”): bit 0 – “A r1” parameter; bit 1 – “A r2” parameter
0 ÷ 5
“rESP” parameter in “rS” menu (additional response delay); 0 – no additional delay; 1 – “10c” option; 2 – “20c” option; 3 – “50c” option; 4 – “100c” option; 5 – “200c” option;
0 ÷ 99
“mbtO” parameter in “rS” menu (maximum delay between received frames); 0 – no delay checking; 1 ÷ 99 – maximum delay expressed in seconds
1 ÷ 8
“bri” parameter (display brightness); 1 – the lowest brightness; 8 – the highest brightness
0 ÷ 1
“Edit” parameter (numerical parameters edit mode); 0 – ,,dig” mode; 1 – ,,SLid” mode
-999 ÷ 9999 “SEtP” parameter in “rEL1” menu, no decimal point included
-999 ÷ 999 “HySt” parameter in “rEL1” menu, no decimal point included
0 ÷ 5
“modE” parameter in “rEL1” menu: 0 – “noAC” mode; 1 – “on” mode; 2 – “oFF” mode; 3 – “in” mode; 4 – “out” mode; 5 – “modb” mode
0 ÷ 999
“t on” parameter in “rEL1” menu, expressed in tenth of seconds or tenth of minutes depend on “unit” parameter – register no. 35h)
24-0352 © Icon Process Controls Ltd.
18
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
RS485 Modbus Programming
Register Write Range
Register description
34h
Yes
0 ÷ 999
“toFF” parameter in “rEL1” menu, expressed in tenth of seconds or tenth of minutes depend on “unit” parameter – register no. 35h)
35h Yes
0 ÷ 1
“unit” parameter in “rEL1” menu: 0 – seconds; 1 – minutes
36h Yes
0 ÷ 2
“AL” parameter in “rEL1” menu: 0 – no changes; 1 – on; 2 – off
37h Yes -999 ÷ 9999 “SEt2” parameter in “rEL1” menu, no decimal point included
38h Yes -999 ÷ 9999 “SEtP” parameter in “rEL2” menu, no decimal point included
39h Yes -999 ÷ 999 “HySt” parameter in “rEL2” menu, no decimal point included
3Ah Yes
0 ÷ 5
“modE” parameter in “rEL2” menu: 0 – “noAC” mode; 1 – “on” mode; 2 – “oFF” mode; 3 – “in” mode; 4 – “out” mode; 5 – “modb” mode
3Bh
Yes
0 ÷ 999
“t on” parameter in “rEL2” menu, expressed in tenth of seconds or tenth of minutes depend on “unit” parameter – register no. 3Dh)
3Ch
Yes
0 ÷ 999
“toFF” parameter in “rEL2” menu, expressed in tenth of seconds or tenth of minutes depend on “unit” parameter – register no. 3Dh)
3Dh Yes
0 ÷ 1
“unit” parameter in “rEL2” menu: 0 – seconds; 1 – minutes
3Eh Yes
0 ÷ 2
“AL” parameter in “rEL2” menu: 0 – no changes; 1 – on; 2 – off
3Fh Yes -999 ÷ 9999 “SEt2” parameter in “rEL2” menu, no decimal point included
50h Yes
0 ÷ 1
“modE” parameter in “HOLd” menu (type of detected changes): 0 – peaks; 1 – drops
51h
Yes
0 ÷ 9999
“PEA” parameter in “HOLd” menu (minimum detectable change, no decimal point included)
52h
Yes
0 ÷ 199
“timE” parameter in “HOLd” menu, maximum peaks’ (or drops’) display time expressed in seconds
53h Yes
0 ÷ 1
“HdiS” parameter in “HOLd” menu: 0 – “rEAL” mode ; 1 – “HOLd” mode
54h Yes
0 ÷ 1
“H r1” parameter in “HOLd” menu : 0 – “rEAL” mode ; 1 – “HOLd” mode
55h Yes
0 ÷ 1
“H r2” parameter in “HOLd” menu: 0 – “rEAL” mode ; 1 – “HOLd” mode
58h1
Yes
0 ÷ 1
“HOut” parameter in “HOLd” menu: 0 – “rEAL” mode ; 1 – “HOLd” mode
70h5
Yes
-999 ÷ 1999
The value of ,,X” coordinate of point no. 1 of the user defined characteristic, expressed in 0.1%
71h5
Yes
-999 ÷ 9999
The value of ,,Y” coordinate of point no. 1 of the user defined characteristic, no decimal point included
72h5 ÷ 95h5
Further pairs of ,,X” – ,,Y” coordinates of points no. 2 ÷ 19 of the user defined characteristic
24-0352 © Icon Process Controls Ltd.
19
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
RS485 Modbus Programming
Register Write Range
Register description
96h5
Yes
-999 ÷ 1999
The value of ,,X” coordinate of point no. 20 of the user defined characteristic, expressed in 0.1%
97h5
Yes
-999 ÷ 9999
The value of ,,Y” coordinate of point no. 20 of the user defined characteristic, no decimal point included
“Omod” parameter in “OUtP” menu (active current output mode)
Yes
0 ÷ 3
0 – current output disabled; 1 – current output enabled with 4÷20mA mode; 2 – current output enabled with 0÷20mA mode;
3 – current output controlled via RS-485 interface
A0h1
Yes
0 ÷ 2
“Omod” parameter in “OUtP” menu (passive current output mode) 0 – current output disabled; 1 – current output enabled with 4÷20mA mode; 2 – current output controlled via RS-485 interface
“Omod” parameter in “OUtP” menu (active voltege output mode)
0 – voltage output disabled; 1 – voltage output enabled with 0÷5V
Yes
0 ÷ 5
mode; 2 – voltage output enabled with 1÷5V mode; 3 – voltage
output enabled with 0÷10V mode; 4 – voltage output enabled with
2÷10V mode; 5 – voltage output controlled via RS-485 interface
A1h1 Yes -999 ÷ 9999 “OUtL” parameter in “OUtP” menu, no decimal point included
A2h1 Yes -999 ÷ 9999 “OUtH” parameter in “OUtP” menu, no decimal point included
Yes A3h1
Yes
0 ÷ 999 0 ÷ 299
“Lo r” parameter in “OUtP” menu, for active current output and active voltage
output, expressed in 0.1%
“Lo r” parameter in “OUtP” menu for passive current output, expressed in 0.1%
Yes A4h1
Yes
0 ÷ 199 0 ÷ 99
“Hi r” parameter in “OUtP” menu for active and passive current output,
expressed in 0.1%
“Hi r” parameter in “OUtP” menu for active voltage output, expressed in 0.1%
Yes
0 ÷ 3
“AL” parameter in “OUtP” menu (active current output value on critical exception): 0 – no change; 1 – 22.1 mA; 2 – 3.4 mA; 3 – 0 mA
A5h1
Yes
0 ÷ 2
“AL” parameter in “OUtP” menu (passive current output value on critical exception): 0 – no change; 1 – 22.1 mA; 2 – 3.4 mA
“AL” parameter in “OUtP” menu (active voltage output value on
Yes
0 ÷ 5
critical exception): 0 – no change; 1 – 11 V; 2 – 5.5; 3 – 1.2 V;
4 – 0.6 V; 5 – 0 V
1 – these registers are active only if device is equipped with current or
voltage output 2 – after writing to register no 20h the device responds with
an “old” address in the message. 3 – after writing to register no 22h the
device responds with the new baud rate. 4 – the value of the “mbAc” parameter
is also connected to write to this register, so it is possible to block a
writes, but
impossible to unblock writes via RS-485 interface, The unblocking of the
writes is possible from menu level only. 5 – the pairs of ,,X -Y” coordinates
may be defined for any free point. The pair is “free” (it means that
particular point
is not defined) if ,,X” coordinate of this point is equal 8000h. After writing
both X and Y coordinate the point is defined and used in calculation of
result. The coordinates of any point can be changed at any time.
24-0352 © Icon Process Controls Ltd.
20
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
RS485 Modbus Programming
11.2. TRANSMISSION ERRORS DESCRIPTION
If an error occurs while write or read of single register, then the device
sends an error code according to Modbus RTU specifications (example message no
1).
Error codes: 01h – illegal function (only functions 03h, 06h and 10h are
available), 02h – illegal register address 03h – illegal data value 08h – no
write permission ( see: “mbAc” parameter) A0h – exceed of upper border of
input range 60h – exceed of lower border of input range A0h and 60h codes can
appear only during reg. 01h is reading by 03h function (read of a single
register).
11.3. EXAMPLES OF QUERY/ANSWER FRAMES
Examples apply for device with address 1. All values are represent hexadecimal.
Field description:
ADDR
Device address on modbus network
FUNC
Function code
REG H,L
Starting address (address of first register to read/write, Hi and Lo byte)
COUNT H,L No. of registers to read/write (Hi and Lo byte)
BYTE C
Data byte count in answer frame
DATA H,L Data byte (Hi and Lo byte)
CRC L,H
CRC error check (Hi and Lo byte)
1. Read of the displayed value (measurement), SRP-N118 device address = 01h:
ADDR FUNC
01
03
REG H,L
00
01
COUNT H,L
00
01
CRC L,H
D5
CA
a) The answer (we assume that the measure result is not out of range):
ADDR FUNC
01
03
BYTE C 02
DATA H,L
00
FF
CRC L,H
F8
04
DATA H, L – displayed value = 255, no decimal point. Decimal point position can be read from reg. 03h.
24-0352 © Icon Process Controls Ltd.
21
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
RS485 Modbus Programming
b) The answer (if an error occur):
ADDR FUNC
01
83
ERROR 60
CRC L,H
41
18
ERROR – error code = 60h, bottom border of the measurement range is exceeded 2. Read of device ID code
ADDR FUNC
01
03
The answer:
REG H,L
00
21
COUNT H,L
00
01
CRC L,H
D4
00
ADDR FUNC BYTE C
01
03
02
DATA H,L
21
F0
CRC L,H
A0
50
DATA – identification code (21F0h) 3. Change of the device address from 1 to 2 (write to reg. 20h)
ADDR FUNC
01
06
REG H,L
00
20
DATA H,L
00
02
CRC L,H
09
C1
DATA H – 0 DATA L – new device address (2)
The answer (the same as the message):
ADDR FUNC
01
06
REG H,L
00
20
DATA H,L
00
02
CRC L,H
09
C1
4. Change of baud rate of all devices connected to the net (BROADCAST message).
ADDR FUNC
00
06
REG H,L
00
22
COUNT H,L
00
04
DATA H – 0 DATA L – 4, new baud rate 19200 baud
CRC L,H
29
D2
i Device do not reply to BROADCAST-type messages.
24-0352 © Icon Process Controls Ltd.
22
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
RS485 Modbus Programming
5. Read of the registers 1, 2 and 3 in one message (example of reading a number of registries in one frame):
ADDR FUNC
01
03
REG H,L
00
01
COUNT H,L
00
03
CRC L,H
54
0B
COUNT L – the count of being read registers (max.16) The answer:
ADDR FUNC BYTE C DATA H1,L1 DATA H2,L2 DATA H3,L3 CRC L,H
01
03
06
00 0A 00 00 00 01 78 B4
DATA H1, L1 – reg. 01h (10 – displayed value “1.0”), DATA H2, L2 – reg. 02h (0
– no errors),, DATA H3, L3 – reg. 03h (1 – decimal point position ” 0.0″).
i There is no full implementation of the Modbus Protocol in the device. The
functions presented above are available only.
24-0352 © Icon Process Controls Ltd.
23
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
RS485 Modbus Programming
12. DEFAULT AND USER’S SETTINGS LIST
Parameter
Description
Default value
SEtP SEt2 HYSt modE t on toFF unit AL
SEtP SEt2 HYSt modE t on toFF unit AL
tYPE CHAr FiLt Pnt Lo C Hi C t h1 t h2 t h3 t d t Sn t Sh Lo r
Parameters of relay R1 operation (“rEL1” menu)
Relay R1 threshold
20.0
Relay R1 second threshold
40.0
Hysteresis of relay R1
0.0
Operation mode of relay R1
on
Turn on delay of relay R1
0.0
Turn off delay of relay R1
0.0
Unit of “t on”, “toFF” parameters of relay R1
SEC
Reaction for critical situation of relay R1
oFF
Parameters of relay R2 operation (“rEL2” menu)
Relay R2 threshold
40.0
Relay R2 second threshold
60.0
Hysteresis of relay R2
0.0
Operation mode of relay R2
on
Turn on delay of relay R2
0.0
Turn off delay of relay R2
0.0
Unit of “t on”, “toFF” parameters of relay R2
SEC
Reaction for critical situation of relay R2
oFF
Configuration of measurement input (“inPt” menu)
Input mode
,,4-20″
Conversion characteristic mode
Lin
Filtering ratio
0
Decimal point position
0.0
Minimum displayed value (for nominal range)
000.0
Maximum displayed value (for nominal range)
100.0
Height (length) first part of the tank
00.00
Height (length) second part of the tank
00.00
Height (length) third part of the tank
00.00
Tank diameter
00.01
Distance between sensor and bottom of the tank
00.00
Height of the sensor
20.00
Extension of the bottom of the nominal input range
5.0 (%)
User’s value
Desc. page
29 29 29 29 30 30 30 30
29 29 29 29 30 30 30 30
31 31 31 31 32 32 32 32 32 32 32 32 35
24-0352 © Icon Process Controls Ltd.
24
LevelPro® — ITC 450 & 350 Series
Tank Level Display + Controller
RS485 Modbus Programming
Parameter
Description
Default value User’s value
Hi r
Omod OUtL OUtH Lo r
Hi r AL
bri
modE PEA timE HdiS H r1 H r2 HOut
A r1
A r2
Addr bAud mbAc mbtO rESP
Edit
Extension of the top of the nominal input range
5.0 (%)
Current output configuration (“OUtP” menu)
Current output mode
,,4-20″ (mA)
Display value for 4 mA current output
0.0
Display value for 20 mA current output
100.0
Extension of the bottom of the nominal output range
5.0 (%)
Extension of the top of the nominal output range
5.0 (%)
Current output value on critical exception
22.1 (mA)
Display parameters
Display brightness
bri6
Configuration of peaks detection function (“HOLd” menu)
Kind of detected changes
norm
Minimum detected change
0.0
Maximum time of peak displaying
0.0
The type of displayed value
HOLd
Source of relay R1, and LED R1 control
rEAL
Source of relay R2, and LED R2 control
rEAL
Source of current output control
rEAL
Settings of access to the configuration parameters (“SECu” menu)
Permission to changes of relay R1 threshold without of the user password knowledge
on
Permission to changes of relay R2 threshold without of the user password knowledge
on
RS 485 interface configuration (menu “rS”)
Device address
0
Baud rate
9.6
Permission to changes of configuration registers
on
Maximum delay between received messages
0
Additional delay of answer transmission
Std
Configuration of numerical parameters edition
Numerical parameters edit mode
dig
Desc. page
35
37 37 37 38
38 38
38
39 39 39 39 39 39 39
39
39
40 40 40 40 40
41
24-0352 © Icon Process Controls Ltd.
25