BASI BLD-457 User Manual

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User manual

METER

BLD-457

Page 2

User manual - METER BDL-457

• Firmware: v.1.00 or higher

• Input type: universal

• Wall mounting case IP 67

Read the user's manual carefully before starting to use the unit or software.

Producer reserves the right to implement changes without prior notice.

2017.05.18 BLD-457_INSSXEN_v.1.04.002

CONTENTS

1. BASIC REQUIREMENTS AND USER SAFETY........................................................................................3

2. GENERAL CHARACTERISTICS................................................................................................................4

3. TECHNICAL

DATA......................................................................................................................................5

4. DEVICE INSTALLATION............................................................................................................................8

4.1. UNPACKING.......................................................................................................................................

4.2. ASSEMBLY........................................................................................................................................8

4.3. CONNECTION METHOD.................................................................................................................10

4.4. MAINTENANCE................................................................................................................................1

5. FRONT PANEL DESCRIPTION................................................................................................................19

6. PRINCIPLE OF OPERATION...................................................................................................................20

6.1. MEASUREMENT MODE..................................................................................................................20

6.2. DETECTION OF THE PEAK VALUES............................................................................................21

6.3. CONTROL OF THE RELAY OUTPUTS..........................................................................................22

6.3.1. One threshold mode................................................................................................................23

6.3.2. Two thresholds mode..............................................................................................................25

7. DEVICE

PROGRAMMING.........................................................................................................................26

7.1. PROGRAMMING MENU..................................................................................................................26

7.2. PARAMETERS EDITION.................................................................................................................27

7.2.1. Numeric parameters (digit change mode)...............................................................................27

7.2.2. Numeric parameters (slide change mode)..............................................................................27

7.2.3. Switch parameters (“LIST” type).............................................................................................28

7.3. MENU DESCRIPTION.....................................................................................................................28

7.3.1. “rEL1”

menu.............................................................................................................................29

7.3.2. “bEEP” menu...........................................................................................................................31

7.3.3. “inPt” menu (common parameters).........................................................................................31

7.3.4. “inPt” menu (parameters of temperature inputs).....................................................................32

7.3.5. “inPt” menu (parameters of current and voltage inputs).........................................................32

7.3.6. ”OutP” menu............................................................................................................................34

7.3.7. ”bri” parameter.........................................................................................................................36

7.3.8. ”CoL”

menu..............................................................................................................................37

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User manual - METER BDL-457

7.3.9. ”HOLd” menu...........................................................................................................................38

7.3.10. ”SECu” menu.........................................................................................................................39

7.3.11. ”rS” menu...............................................................................................................................39

7.3.12. ”Edit” parameter....................................................................................................................40

7.3.13. ”dEFS” parameter..................................................................................................................40

7.3.14. ”SErv” menu..........................................................................................................................40

7.4. MENU STRUCTURE........................................................................................................................41

8. OVER-CURRENT PROTECTION.............................................................................................................43

9. DISPLAYED VALUES CALCULATION....................................................................................................43

9.1. ADDITIONAL CALCULATIONS (USED CONVERSION CHARACTERISTIC)...............................43

9.1.1. Linear characteristic................................................................................................................44

9.1.2. Square characteristic..............................................................................................................44

9.1.3. Square root characteristic.......................................................................................................45

9.1.4. User defined characteristic.....................................................................................................45

9.2. EXAMPLES OF CALCULATIONS...................................................................................................46

10. THE MODBUS PROTOCOL HANDLING...............................................................................................49

10.1. LIST OF REGISTERS....................................................................................................................49

10.2. TRANSMISSION ERRORS DESCRIPTION..................................................................................55

10.3. EXAMPLES OF QUERY/ANSWER FRAMES...............................................................................55

11. DEFAULT AND USER'S SETTINGS LIST.............................................................................................58

Explanation of symbols used in the manual:

- This symbol denotes especially important guidelines concerning the installation andoperation of the device. Not complying with the guidelines denoted by this symbol may cause an accident, damage or equipment destruction.

IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS

RESPONSIBLE FOR POSSIBLE DAMAGES.

- This symbol denotes especially important characteristics of the unit. Read any information regarding this symbol carefully

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User manual - METER BDL-457

1. BASIC REQUIREMENTS AND USER SAFETY

- 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.

- Installation should be conducted by qualified personnel . During installation all available safety requirements should be considered. The fitter is responsible for executing the installation according to this manual, local safety and EMC regulations.

- If the device is equipped with PE connector, it should be connected to PE wire.Otherwise PE wire should be connected to GND connector.

- The unit must be properly set-up, according to the application. Incorrect configuration can cause defective operation, which can lead to unit damage or an accident.

- 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).

- Neighbouring and connected equipment must meet the appropriate standards and regulations concerning safety and be equipped with adequate overvoltage and interference filters.

- 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 centre.

- 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.

- Do not use the unit in areas exposed to direct sunlight.

- Make sure that the ambient temperature (e.g. inside the control box) does not exceed the recommended values. In such cases forced cooling of the unit must be considered (e.g. by using a ventilator).

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User manual - METER BDL-457

The unit is designed for operation in an industrial environment and must not be used in a household environment or similar.

2. GENERAL CHARACTERISTICS

The BLD-457 meter is equipped with one current input (0-20mA), two voltage inputs (010V and 0-150 mV), one RTD input (Pt 100/500/1000) and one TC input (thermocouple: K, S, J, T, N, R, B, E). Temperature of cold ends is compensated automatically. RTD and TC inputs are fully linearised. It is allowed to use only one input at the same time. Input ranges are described in the next chapter. Result is showed on 4-digit LED display.

The device can be equipped with two or four relay (or OC type) outputs. Optionally BLD457 can be equipped with active current output, passive isolated current output or active voltage output. Device BLD-457 is equipped with RS-485 / Modbus RTU communication interface and sensor supply output. The meter can be ordered in two power supply versions.

The device has 4 buttons being used for main presets programming. To get high protection level, the keyboard is mounted under transparent cover. To allow user to change presets without opening the cover, an IR sensor is mounted.

Remote controller keyboard is equivalent to the device keyboard (Note, that remote controller is not a part of the BLD-457 set – it is an additional equipment).

BLD-457 can be used for controlling and regulation of processes need proportional and threshold control like: temperature processes (heating or cooling), valves controlling or other.

3. TECHNICAL DATA

Power supply voltage (depending on version) External fuse (required) Power consumption

85...230...260V AC/DC; 50 ÷ 60 Hz (separated) or

19...24...50V DC and 16...24...35V AC (separated)

T - type, max. 2 A max. 33 VA @ 85 ÷ 260V AC/DC max. 22 VA @ 16V ÷ 35V AC max. 13 W @ 19V ÷ 50V DC

Current input (20 mA)

0÷20 mA, 4÷20 mA overload protected, input current is limited to 50 mA (typically)

Current measurement accuracy

± 0.1% @ 25°C; ± one digit (for 0÷20 mA range)

Current input resistance

< 65 W (typical 30 W)

Accepted prolonged input overload

20%

Voltage input (10V range)

0÷5 V, 1÷5 V, 0÷10 V, 2÷10 V

Voltage measurement accuracy

± 0.1% @ 25°C; ± one digit (for 0÷10 V range)

Voltage input resistance

> 100 kW (while maintaining correct polarization)

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User manual - METER BDL-457

Accepted prolonged input overload

20%

Voltage input (150mV range)

0÷60 mV, 0÷75 mV, 0÷100 mV, 0÷150 mV

Voltage measurement accuracy

± 0.1% @ 25°C; ± one digit (for 0÷150 mV range)

Voltage input resistance

> 1,5 MW

Accepted prolonged input overload 20%

RTD input (resistive)

Pt 100, Pt 500,Pt 1000

Measurement range

-100°C ÷ +600°C

Measurement accuracy

± 0,1% @ 25°C; ± one digit

Measurement wires resistance

max. 20 W (every wire)

Thermocouple input

K, S, J, T, N, R, B, E

Thermocouple input range

K: -200˚C ÷ +1370˚C S: -50˚C ÷ +1768˚C J: -210˚C ÷ +1200˚C T: -200˚C ÷ + 400˚C N: -200˚C ÷ +1300˚C R: -50˚C ÷ +1768˚C

B: +250˚C ÷ +1820˚C

E: -200˚C ÷ +1000˚C

Measurement accuracy

K, J, E: ± 0.1% @ 25°C; ± one digit N: ± 0.2% @ 25°C; ± one digit S, T, R, B: ± 0.5% @ 25°C; ± one digit

Accuracy of cold ends temperature compensation

± 1˚C

Sensor power supply output

24V +5%, -10% / max. 100 mA, stabilized

Relay output

2 or 4 NO, 5A/250V AC (resistance) 3A/250V AC (reactance)

OC-type output

2 or 4; 30mA / 30VDC / 100mW

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Active current output

range max. 0 ÷ 24 mA

Load resistance max.

700 W

Passive isolated current output

range max. 2.8 ÷ 24 mA

Supply voltage

Us = 9.5 ÷ 36V

Load resistance max.

(Us – 9.5V) / 24mA [kW]

Active voltage output

range max. 0 ÷ 11V

Load resistance min. 2000 W Temperature stability

50 ppm / °C

Display range

-999 ÷ 9999, plus decimal point

Communication interface

RS-485, 8N1 and 8N2, Modbus RTU, not separated

Baud rate

1200 bit/s ÷ 115200 bit/s

Display LED, 4 digit, 57 mm height, multicolor (red green) (depending on version) LED, 4 digit, 57 mm height, red (l = 660 nm)

LED, 4 digit, 57 mm height, pure green (l = 520 nm) LED, 4 digit, 57 mm height, blue (l = 470 nm)

Data memory non-volatile memory, EEPROM type Protection level T-type casing:IP 67 Housing type Wall mounted, T-type

Housing material ABS (lower part) + PC (upper part) Housing dimensions T-type casing: 230 x 140 x 96.5 mm

Operating temperature 0°C to +50°C (depending on version) or -20°C to +50°C

Storage temperature -10°C to +70°C (depending on version) or -20°C to +70°C

Humidity 5 to 90% no condensation Altitude up to 2000 meters above sea level

Screws tightening max. torque 0,5 Nm

Max. connection leads cross section 2,5 mm2

Safety requirements according to: PN-EN 61010-1

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installation category: II pollution degree: 2 voltage in relation to ground: 300V AC insulation

resistance: >20MW insulation strength between power supply and

input/output terminal: 1min. @ 2300V insulation strength between relays terminal: 1min. @ 1350V

EMC according to: PN-EN 61326-1

This equipment is not intended for use in residential environments and may not provide adequate protection to radio reception in such environments.

4. DEVICE INSTALLATION

The unit has been designed and manufactured in a way assuring a high level of user safety and resistance to interference occurring in a typical industrial environment. In order to take full advantage of these characteristics installation of the unit must be conducted correctly and according to the local regulations.

- Read the basic safety requirements on page 3 prior to starting the installation.

- Ensure that the power supply network voltage corresponds to the nominal voltage stated on the unit’s identification label.

- The load must correspond to the requirements listed in the technical data.

- All installation works must be conducted with a disconnected power supply.

- Protecting the power supply connections against unauthorized persons must betaken into consideration.

4.1. UNPACKING

After removing the unit from the protective packaging, check for transportation damage. Any transportation damage must be immediately reported to the carrier. Also, write down the unit serial number located on the housing and report the damage to the manufacturer.

Attached with the unit please find:

- user’s manual,

- warranty,

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User manual - METER BDL-457

4.2. ASSEMBLY

To install device on the wall, a pinholes should be made. Figure 4.1 presents dimensions of the device and distances between holes. The back side of the device has four mounting holes. This part of the case should be mounted to a wall by screws.

Figure 4.1. Device and assembly dimensions of the case

- Disconnect the power supply prior to starting assembly.

- Check the connections are wired correctly prior to switching the unit on.

230

96.5

212

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User manual - METER BDL-457

4.3. CONNECTION METHOD

Caution

- Installation should be conducted by qualified personnel . During installation allavailable safety requirements should be considered. The fitter is responsible for executing the installation according to this manual, local safety and EMC regulations.

- The unit is not equipped with an internal fuse or power supply circuit breaker.Because of this 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 (L).

- The power supply network cable diameter must be selected in such a way that inthe case of a short circuit of the cable from the side of the unit the cable shall be protected against destruction with an electrical installation fuse.

- Wiring must meet appropriate standards and local regulations and

laws.

- In order to secure against accidental short circuit the connection cables must beterminated with appropriate insulated cable tips.

- Tighten the clamping screws. The recommended tightening torque is 0.5 Nm.Loose screws can cause fire or defective operation. Over tightening can lead to damaging the connections inside the units and breaking the thread.

- In the case of the unit being fitted with separable clamps they should be insertedinto appropriate connectors in the unit, even if they are not used for any connections.

- Unused terminals (marked as n.c.) must not be used for

connecting anyconnecting cables (e.g. as bridges), because this can cause damage to the equipment or electric shock.

- If the unit is equipped with housing, covers and sealing to, protecting againstwater intrusion, pay special attention to their correct tightening or clamping. In the case of any doubt consider using additional preventive measures (covers, roofing, seals, etc.). Carelessly executed assembly can increase the risk of electric shock.

- After the installation is completed do not touch the unit’s connections when it isswitched on, because it carries the risk of electrical shock.

Due to possible significant interference in industrial installations appropriate measures

assuring correct operation of the unit must be applied. To avoid the unit of improper indications keep recommendations listed below.

– Avoid running signal cables and transmission cables together with power supply cables and

cables controlling inductive loads (e.g. contactors). Such cables should cross at a right angle.

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User manual - METER BDL-457

– Contactor coils and inductive loads should be equipped with interference protection systems,

e.g. RC-type.

– Use of screened signal cables is recommended. Signal cable screens should be connected

to the earthing only at one of the ends of the screened cable.

– In the case of magnetically induced interference the use of twisted pair of signal cables is

recommended. Twisted pair (best if shielded) must be used with RS-485 serial transmission connections.

– In the case of measurement or control signals are longer than 30m or go outside of the

building then additional safety circuits are required.

– In the case of interference from the power supply side the use of appropriate interference

filters is recommended. Bear in mind that the connection between the filter and the unit should be as short as possible and the metal housing of the filter must be connected to the earth with the largest possible surface. The cables connected to the filter output must not be run with cables with interference (e.g. circuits controlling relays or contactors).

Connections of power supply voltage and measurement signals are executed using the

screw connections on the back of the unit’s housing.

Figure 4.2. Method of cable insulation replacing and cable terminals

Figure 4.3. Terminals description (two relay outputs)

6-7

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Figure 4.4. Terminals description (two OC-type outputs)

Figure 4.5. Terminals description (one relay and one OC-type output)

Figure 4.6. Terminals description (four relay outputs)

Figure 4.7. Terminals description (four OC-type outputs)

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Figure 4.8. Terminals description (two relay, one OC-type and passive current outputs)

Figure 4.9. Terminals description (two relay, one OC-type and active current outputs)

Figure 4.10. Terminals description (two relay and active voltage outputs)

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User manual - METER BDL-457

Figure 4.11. Connection of 2-wire current converters

internally connected

External power supply

V DC

internally connected

External power supply

V DC

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User manual - METER BDL-457

Figure 4.12. Connection of 3-wire current converters

Figure 4.13. Connection of voltage converters

Temperature sensor can be connected to the device in typical 4-wire circuit (Figure 4.14a) or 3-wire circuit (Figure 4.14b). Due to precision of measurement 4-wire circuit is recommended.

If 2 wire circuit is used, the resistance of wires should be as small as possible, to avoid of measurement errors. Measured value can be corrected (constant correction) using „toFS” parameter from menu „inPt”. Due to low precision 2-wire connection is not

recommended.

When 4-wires or 2-wires connection is used, the resistance of particular wires (Ra ÷ Rd) CAN BE DIFFERENT. When 3-wires connection is used, the resistance of particular wires (Ra ÷ Rd) MUST BE IDENTICAL to enable proper compensation of it's resistance. The

resistance of particular wire should not be greater than 20 W.

Figure

4.14.

Connection of RTD sensors:

a) 4-wires circuit; b) 3-wires circuit; c) 2-wires circuit

RTD

Ra, Rb, Rc, Rd can be different

RTD

Ra = Rc = R

RTD

Ra, Rd can be different

internally connected

+ - +

External power supply

V DC

+ - +

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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 19 and 20 of RTD input it may take up to about 7 seconds. During detection measurements will be incorrect. If wire break is detected "S.Err" (sensor error) message is displayed.

L N

Figure 4.15. Connection of power supply and relays

Contacts of relay outputs are not equipped with spark suppressors. While use the relay outputs for switching of inductive loads (coils, contactors, power relays,

electromagnets, motors etc.) it is required to use additional suppression circuit (typically capacitor 47nF/ min. 250VAC in series with 100R/5W resistor), connected in parallel to relay terminals or (better) directly on the load. In consequence of using the suppression circuit, the level of generated electromagnetic disturbances is lower, and the life of relay contacts rises.

a) b)

Depending on version:

85...

230

V AC/DC or

...260

19...

...50

16...

V DC;

V AC

...35

1 2 3

FUSE

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User manual - METER BDL-457

L L N N

Figure 4.16. Examples of suppression circuit connection:

a) to relay terminals; b) to the inductive load

Figure 4.17. Example of OC-type outputs connection

Voltage input

Logic

controller

+ - -

- + +

R 2k2

LED 10 mA

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Figure 4.18. Example of active current outputs connection

(for device with active current output only)

Figure 4.19. Example of passive current outputs connection

(for device with passive current output only)

Figure 4.20. Example of active voltage outputs connection

(for device with active voltage output only)

4.4. MAINTENANCE

The unit does not have any internal replaceable or adjustable components available to the user. Pay attention to the ambient temperature in the room where the unit is operating. Excessively high temperatures cause faster ageing of the internal components and shorten the fault-free time of the unit's operation.

ACTIVE

current

output ( optional

)

current input

0-20

Logic controller

ACTIVE

current

output

(

optional

)

current input

0-20

mA - Logic controller

ACTIVE

current

voltage ( optional

)

voltage input

0-10

Logic controller

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In cases where the unit gets dirty do not clean with solvents. For cleaning use warm water with

small amount of detergent or in the case of more significant contamination ethyl or isopropyl alcohol.

Using any other agents can cause permanent damage to the housing.

Product marked with this symbol should not be placed in municipal waste. Please check local regulations for disposal of electronic products.

5. FRONT PANEL DESCRIPTION

Symbols and functions of push-buttons:

ESC

Symbol used in the manual: [ESC/MENU]

MENU Functions:

• Enter to main menu ( press and hold by at least 2 sec.)

• Exit the current level and Enter to previous menu (or measure mode)

• Cancel the changes made in parameter being edited

Symbol used in the manual: [ENTER]

ENTER

Functions :

• Start to edit the parameter

• Enter to the sub-menu,

• Confirmation of changes made in parameter being edited

Symbol used in the manual: [^] [v] Functions :

• Change of the present menu,

• Modification of the parameter value,

• Change of the display mode.

ESC

ENTER

infrared

receiver

Thresholds exceeding

LED indicators (

)

display

programming

pushbuttons

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6. PRINCIPLE OF OPERATION

After turning the power supply on, device ID and software version are showed on the display, next the controller goes to the measurement mode.

6.1. MEASUREMENT MODE

In the measure mode, the measurement results, converted over selected characteristic, are displayed on the LED display. The measurement range equal to the nominal range is called: nominal measurement range, and the measurement range equal to the extended nominal range is called: permissible measurement range (Figure 6.1, 6.2).

For temperature inputs (TC and RTD) there is linear characteristic available only. For this kind of inputs nominal measurement range, and permissible measurement range are the same (no range extension available, Figure 6.3).

Figure 6.1. Definitions of measurement ranges in mode 4 ÷ 20mA

If the result of measurement exceeds the permissible measurement range, warning ”-Hi- ” or ”-Lo-” is displayed rather than input signal, depending on exceeded value (see description

of “Lo r” and “Hi r” parameters, paragraph ”inPt” menu). The warning can be effect of measurement circuit malfunction. In that case “-Lo-” means shortcut and “-Hi-” means break of measurement circuit. If sensor failure will be detected (e.g. broken wires), then ”S.Err” warning will be displayed.

”

Lo r

” p

arameter

”

Hi r

” p

arameter

permissible measurement range

nominal measurement range

Figure

6.2

Definitions of measurement ranges in mode 0

÷ 150

If the measurement value do not exceeds

permissible measurement range

but

displayed value exceeds range -999 ÷ 9999, the warning ”

” is displayed rather

than the calculated result.

”

Hi r

” parameter

mV 0 mV

150

permissible measurement range

nominal measurement range

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User manual - METER BDL-457

”-Lo-” message ”-Hi-” message displayed displayed

Figure 6.3. Definitions of measurement ranges in mode Pt100

In the measurement mode user can check main thresholds values. After pressing [^] or [v] button, name of the threshold (e.g. ”rEL1”) and his value will be displayed on the display in alternating mode. If [^] or [v] will be pressed in 5 sec again, the next threshold will be displayed, else the device comes back to the measurement mode. If a free access is enabled (see description of ”SECu” menu), user can change the value of particular threshold pressing button [ENTER] (see: PARAMETERS EDITION).

All accessible parameters can be changed by entering the menu (see: DEVICE PROGRAMMING). Use the local keyboard or the remote controller to do it. (Note: all parameters can be remote changed via RS-485 interface).

Configuration of the device (via menu or RS-485 interface) does not stop measures.

6.2. DETECTION OF THE PEAK VALUES

The SUR-457 controller is equipped with peaks detection function. It can detect a peaks of the input signal and display their values. Presets connected with this function are placed in ”HOLd” menu (see description of ”HOLd” menu). The detection of the peak can be done if the measured signal raises and drops of value at least equal to parameter ”PEA”. Detected peaks are displayed during the time defined by parameter ”timE”. If a new peak will be detected while one is displayed, this new peak will be displayed and display time counter will be cleared (Figure

6.4).

If no peaks are detected while time ”timE” elapses, device starts to show the current value of input signal again. If „HdiS”=”HOLD” then setting parameter "timE"=0.0 causes holding peak value until [ESC] button is pressed. If „HdiS”=”rEAL” then value "timE"=0.0 means no holding. Displaying peak value is signalized by flashing most right decimal point.

The relays/LEDs and analogue outputs can be controlled depend on the current value of input signal or the peak value (see ”HOLd” menu).

permissible measurement range

-100 ° C

+600 ° C

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Figure 6.4. Process of peaks detection

6.3. CONTROL OF THE RELAY OUTPUTS

The control of the object (measured signal) is realized via relay outputs. Front panel LEDs

named “R” indicates the state of particular relay output.

If device is not equipped with one or more relay outputs, menus refer to this relays are available, but apply to LED indicators only. In such case LEDs indicates exceeding of particular thresholds.

Modes of the control can be changed depend on the values of parameters “SEtP”, “SEt2”, “HYSt”, “modE”, “t on”, “toFF”, “unit” and “AL”. Depend on “modE” parameter, relays can be not used or controlled over one or two thresholds values.

If one threshold is used (Figure 6.5) the relay can be turned on (“modE” = ”on”) or off (“modE” = ”oFF”) when the input signal value is contained in zone A. If two thresholds are used (Figure 6.6) the relay will be turned on when value of input signal is contained in zone A (“modE” = ”in”) or zone B (“modE” = ”out”) and turned off if the signal is contained in the second one.

state of

”HYSt” parameter

”

timE”

measure

time ” timE”

”

PEA”

”

PEA”

real measurement result

display value

zone A

zone B

measure

”

SEtP” parameter

relay/LED

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Figure 6.5. One threshold control of the relay/LED outputs

”HYSt” parameter

Figure 6.6. Two threshold control of the relay/LED outputs

The relay outputs and LEDs (named R) can be controlled depend on both - the current value and the peak value (when peak detection is active) of the input signal.

6.3.1. One threshold mode

Figure 6.7 presents the principle of relay outputs operation for one threshold mode, and an example values of other parameters.

Description:

zone B

zone A

zone B

measure

”

SEtP” or ”SEt2” parameter

state of

relay/LED

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User manual - METER BDL-457

A, B, C, D - points where measured signal exceeds border values (expected value ± allowed deviation)

BON ,B

OFF

,DON ,D

OFF

- relays state changes moments: (for “t on” > 0, “toFF” > 0) tA , tB , tC , t

- time

periods while input signal is in zone A or zone B

Figure 6.7. Principle of LED/relay output operation for one threshold mode

Parameter “SEtP” sets a threshold of the relay, and parameter “HYSt” sets a hysteresis

of the relay (Figure 6.7 a). The relay can change his state only when input value exceeds (over or under) border value and tA ,tB ,tC ,tD times (Figure 6.7) are bigger than the time defined by

parameters “t on”, “toFF” and “unit”. Border values means values equal threshold+hysteresis

and threshold-hysteresis respectively.

If “t on” and “toFF” parameters are set to “0”, then the relay state will be changed as soon as input value exceeds any of the border values (see points A and C, Figure 6.7 a, b, c).

If values of “t on” or/and “toFF” are positive, then relay state will be turned on if the input value exceeds the border values and stay bigger (or lower) during at least “t on” (see points BON, DON, Figure 6.7 a, d, e). Similarly, the relay will be turned off if time “toFF” elapse since the input signal value exceeds any of the border values (see points B

OFF

, D

OFF

, Figure 6.7 a, d, e).

If tA ,tB ,tC or tD (when input signal stay in zone A or zone B) are lower than parameters “t

on” or “toFF”, the relay will not change his state (see points A and C, Figure 6.7 a, d, e). The

state of relay output while the input value exceeds the border values (points A, B, C, D) is described by parameter “modE”. The relay can be turned on (“modE” = ”on”), or turned off (“modE” = ”oFF”) when input signal value is contained in zone A (Figure 6.7 a).

The parameter “AL” allow user to set the relay output behaviour in critical situations (e. g. input values exceeds permissible measurement range). User can select that the relays will be turned on, turned off,or not changed in critical situations.

All parameters connected with relay outputs are described in paragraph ”rEL1” menu.

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6.3.2. Two thresholds mode

Objaśnienie:

A, B, C, D, E - points where measured signal exceeds border values (expected value ± allowed deviation) BON

OFF

,CON ,C

OFF ,EON

OFF

- relays state changes moments: (for “t on” > 0, “toFF” > 0) tA , tB , tC , tD ,

- time periods while input signal is in zone A or zone B

Figure 6.8. Principle of LED/relay output operation for two thresholds mode

Figure 6.8 presents the principle of relay outputs operation for two thresholds mode, and an example values of other parameters. In this mode parameter “SEt2” is accessible in common with “SEtP”, this parameter describes a second threshold of the relay output. The parameters “HYSt”, “modE”, “t on”, “toFF”, “unit” and “AL” are connected with both “SEtP” and “SEt2” thresholds. While the controlling process, the relay output changes his state depends of both “SEtP” and “SEt2” thresholds in similar way as it was described in one threshold mode.

If two threshold mode is used, “modE” parameter defines state of the relay output when the input value occurs in a particular zone defined by border values of both thresholds. The relay can be turned on if the input value is contained in zone A (“modE” = ”in”) or zone B (“modE” = ”out”) and turned off if it is contained in the second one (Figure 6.8).

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The sequence of thresholds “SEtP” and “SEt2” can be set in any order, due to the

control of relay outputs is done depend on difference between thresholds values (zone A ) and outside of threshold values (zone B).

7. DEVICE PROGRAMMING

The device menu allow user to set all parameters connected to operation of measurement input, control modes, critical situations behaviour, communication via RS-485 and access settings. The meaning of the particular parameters is described in paragraph MENU DESCRIPTION.

Some of the parameters can be accessed without menu entering (quick view mode). After pressing [^] or [v] button, name of the threshold (e.g.”rEL1”) and his value will be displayed on the display in alternating mode. If [^] or [v] will be pressed in 5 sec again, the next threshold will be displayed, else the device comes back to the measurement mode. If a free access is enabled (see description of ”SECu” menu), user can change the value of particular threshold pressing button [ENTER] (see: PARAMETERS EDITION).

If particular parameter has been changed and confirmed in quick view mode, its new value is displayed in alternating mode with parameter name by few seconds. Confirmed changes may be checked or user can switch viewed parameter pressing [^]

or [v] button.

7.1. PROGRAMMING MENU

To enter main menu (being in the measurement mode) operator must to press and hold at least 2 sec. [ESC/MENU] button.

If the user password is defined (see parameter “Scod“, menu “SECU”), operator have to enter correct one before proceeding to menu options . Entering of the passwords is similar to the edition of numeric parameters (see: PARAMETERS EDITION ), however presently editing digit is showed only on the display, other digits are replaced by “-” sign.

After entering of last digit of the password first menu position will be displayed (if the password

is correct) or warning “Err” in other case.

Pay attention when device parameters are being changed. If it is possible, turn off controlled installation (machine).

Functions of the buttons while sub-menu and parameters choice:

Selection of sub-menu or parameter for editing. Name of selected item (submenu or parameter) is displayed.

Operation of [ENTER] button depend on present menu position:

• if the name of some sub-menu is displayed - enter this sub-menu; name of the

first parameter (or next level sub-menu) is displayed,

ENTER

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• if the name of some parameter is displayed - enter the edition of this parameter; present value of the parameter is displayed,

[ESC/MENU] button allow user to exit present menu level and goes to upper level menu (or measurement mode).

After about 1 min. since last use of the buttons, device exits the menu mode and returns to the measurement mode (only if no parameters are in editing mode).

7.2. PARAMETERS EDITION

To start edition of any parameter user should select name of desired one using [^] [v]

buttons and then press [ENTER].

7.2.1. Numeric parameters (digit change mode)

Numerical parameters are displayed as decimal numbers. The mode of its new value

entering depends on chosen edit method ( see parameter „Edit”).

In mode “by digit” (“Edit”=”dig”) pressing one of the keys [^] or [v] causes change of

current position (flashing digit) or the sign (+/-). Short pressing of the [ENTER] button causes change of the position (digit).

Press [ENTER] at least 2 seconds to accept the changes, after that question “SEt?” is displayed, and user must to confirm (or cancel) the changes. To conform changes (and story it in EEPROM) press [ENTER] button shortly after “SEt?” is displayed. To cancel the changes press [ESC] button shortly after “SEt?” is displayed. After that device returns to the menu.

7.2.2. Numeric parameters (slide change mode)

In “slide change” mode (“Edit”=”Slid”), buttons [^] and [v] has different functions.

To increase edited value press (or press and hold) [^] button only, the increasing became quickest as long as button [^] is pressed. To slow down the increasing, button [v] can be used. If [v] is pressed shortly (and button [^] is still pressed), increasing slow down for a moment only, if [v] is pressed and held while button [^] is still pressed the increasing slow down and will be kept on lower speed.

To decrease edited value press (or press and hold ) [v] button only. The decreasing became quickest as long as button [v] is pressed. To slow down the decreasing, button [^] can be used. If [^] is pressed shortly (and button [v] is still pressed), decreasing slow down for a moment only, if [^] is pressed and held while button [v] is still pressed the decreasing slow down and will be kept on lower speed.

Press [ENTER] at least 2 seconds to accept the changes, after that question “Set?” is displayed, and user must to confirm (or cancel) the changes. To conform changes (and story it in EEPROM) press [ENTER] button shortly after “SEt?” is displayed. To cancel the changes press [ESC] button shortly after “SEt?” is displayed. After that device returns to the menu.

ESC

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7.2.3. Switch parameters (“LIST” type)

Switch parameters can be described as a sets of values (a lists) out of which only one of the options available on the list can be selected for the given parameter. Options of switching parameter are selected using [^], [v] keys.

Short pressing of [ENTER] causes in displaying of the acknowledge question (“SEt?”). If key [ENTER] is pressed again, the changes are accepted, stored in EEPROM end the edition process finished. Pressing the key [ESC] after “SEt?” causes in cancelling of made changes and returning to menu.

Functions of buttons when editing numeric and switching parameters:

While editing numeric parameter:

• change of current (flashing) digit

• slide change of value (acceleration, deceleration, direction change) While editing switch

parameter - selection of switch parameter.

If numerical parameter is being edited, a short press of [ENTER] button

ENTER change edited position. A long press of [ENTER] button (at lest 2 sec.) causes of display

a ”SEt?” ask, which allow user to make sure if change of the parameter value is correct. If switch parameter is being edited, a short press of [ENTER] button causes of display a ”SEt?” ask. When [ENTER] button is pressed again (while ”SEt?” is displayed) the new value of the parameter is stored in EEPROM memory.

ESC

Pressing this button operator can cancel the changes done up to now (if they

MENU were not approved by [ENTER] button after the ”SEt?” ask) and come back to menu

7.3. MENU DESCRIPTION

“- - - -” - password checking. If some password different from “0000” is set, then every enter to

main menu follows the entering of password. If entered password is correct then first menu position will be displayed else warning “Err”, and unit returns to measurement mode.

Due to problem with direct displaying of “m” and “K” letters, they are exchanged with special signs “ ” for “m” and “ ” for “K” respectively. However, in user manual

letters “m” and “K” are used to make it more readable (example: “modE”, “tc K”).

7.3.1. “rEL1” menu

This menu allows to configure the operation mode of relays and LEDs marked „R” (e.g. „R1”).

If there are few relay outputs available, then every output has its own configuration menu

(e.g. menu “rEL2” for relay (LED) “R2”). Principle of the relays operation is described in

paragraph CONTROL OF THE RELAY OUTPUTS.

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• The relay outputs and LEDs (named R) can be controlled depend on both - the current value and the peak value (when peak detection is active) of the input signal.

• If device is not equipped with one or more relay outputs, menus refer to this relays

are available, but apply to LED indicators only. In such case LEDs indicates exceeding of particular thresholds.

“SEtP” - first threshold of the relay (range -999 ÷ 9999). Negative values can be input by

selecting a “-” sign on first digit (to change value use [^] and [v] buttons). Threshold is the medium value of relay hysteresis.

“SEt2” - second threshold of the relay (range -999 ÷ 9999). Negative values can be input by

selecting a “-” sign on first digit ( to change value use [^] and [v] buttons). This threshold is accessible when “modE” parameter is set to “in” or “out” value.

Threshold is the medium value of relay hysteresis.

“HYSt” - hysteresis of relay (range 0 ÷ 999). Full hysteresis of the relay is equal to 2 times “HYSt”

parameter. The relay state can change when an input signal is out of threshold- hysteresis to threshold+hysteresis zone.

Presented parameters should be set to ensure that “SEtP” + “HYSt”, “SEt2” + “HYSt”, “SEtP” - “HYSt” or “SEt2” - “HYSt” does not exceed the measure range. Additionally, in two threshold mode (“modE”= “in” or “out”), the hysteresis for both

thresholds must not cover each other (in other case relay can't change his state).

“modE” - relay operation mode:

“noAC” - the relay is not active (permanent turned off)

“on”

- one threshold mode, the relay is turned ON when input signal exceeds SEtP + HYSt value, and is turned off back when the input signal became lower than SEtP – HYSt,

“oFF”

- one threshold mode, the relay is turned OFF when input signal exceeds SEtP + HYSt value, and is turned on back when the input signal became lower than SEtP – HYSt,

“in”

- two threshold mode, the relay is turned ON when the input signal is bigger than “lower threshold + HYSt” and lower than “bigger threshold – HYSt”, and turned off when the input signal is contained in the second zone. The

bigger threshold means bigger one of “SEtP” and “SEt2” thresholds, the lower threshold” means lower one of “SEtP” and “SEt2” thresholds.

“out” - two threshold mode, relay is turned ON when the input value is bigger than

“bigger threshold + HYSt” and lower than “lower threshold – HYSt”, and turned on when the input signal is contained in the second zone. The bigger

threshold means bigger one of “SEtP” and “SEt2” thresholds, the lower threshold” means lower one of “SEtP” and “SEt2” thresholds.

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“modb” - the relay is controlled via RS-485 interface, independently on the input

signal.

• LEDs light when relays are closed, independently of relays' mode.

• When power supply fail, unit do not store relays state selected by RS-485

interface.

“t on” - turn on delay time, the relay is turned on with delay equal “t on” if the input value exceeds

appropriate border value (defined with threshold and hysteresis), at least “t on” time. “t on” range 0 ÷ 99.9, defined with 0.1 sec. resolution. Unit of this parameter is set by “unit” parameter.

“toFF” - turn off delay time, the relay is turned off with delay equal “toFF” if the input value

exceeds appropriate border value (defined with threshold and hysteresis), at least “toFF” time. “toFF” range 0 ÷ 99.9, defined with 0.1 sec. resolution. Unit of this parameter is set by “unit” parameter.

If time when the input signal exceeds some border value is shorter than “t on” or

“toFF” time, the relay do not change its state (see paragraph: CONTROL OF THE RELAY OUTPUTS).

“unit” - unit of time for “t on” and “toFF” parameters. Can be set on one of two values:

“min” - minutes, “SEC” - seconds.

“AL” - this parameter defines the relay reaction when some critical situations occurs:

“noCH” - relay do not

change his state, “on” relay will be turned on, “oFF” relay will be turned off.

If parameter “modE” is set to “on” , “oFF”, “in” or “Out” the “critical situation” means that allowable measurement range is exceeded. If parameter “modE” is set to “modb”, the “critical situation” means communication delay (when no data is received) longer than “mbtO” parameter (see description: “rS” menu).

• If option “noCH” is selected for “AL” parameter, behaviour of the relay may depend

on “FiLt” parameter in some cases. If “FiLt” is set to big value and the input signal

drops, result value of the measure will change slow, causes of turning on or off relay due to thresholds values. The critical situation is slowly detected, so it is impossible to predict the relay state in that situations.

• If parameter “AL” = “on”, the relay will be turned on in the critical situations, even if his

parameter “modE” = “noAC”.

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7.3.2. “bEEP” menu

This menu contains options connected with acoustic signal :

"AL”

- if this parameter is set to “on”, any critical situation causes by acoustic signal

"r1”

- if this parameter is set to “on”, activation of relay R1 causes by acoustic signal

"r2"

- if this parameter is set to “on”, activation of LED R2 causes by acoustic signal

"r3"

- if this parameter is set to “on”, activation of LED R3 causes by acoustic signal

"r4"

- if this parameter is set to “on”, activation of LED R4 causes by acoustic signal

Acoustic signal (turned on by e.g. relay ) can be turned off by pressing of any button

7.3.3. “inPt” menu (common parameters)

This menu presets the measurement input:

“tYPE" - type of the input / sensor. This parameter can be set to values:

”0-20”

- current input - range 0..20 mA,

”4-20”

- current input - range 4..20 mA,

”0-5”

- voltage input - range 0..5 V,

”1-5”

- voltage input - range 1..5 V,

”0-10”

- voltage input - range 0..10 V,

”2-10”

- voltage input - range 2..10 V,

”60”

- voltage input - range 0..60 mV,

”75”

- voltage input - range 0..75 mV,

”100”

- voltage input - range 0..100 mV,

”150”

- voltage input - range 0..150 mV,

”Pt 1”

- Pt 100 input,

”Pt 5”

- Pt 500 input,

”Pt10”

- Pt 1000 input,

”tc k”

- thermocouple input, type K,

”tc S”

- thermocouple input, type S,

”tc J”

- thermocouple input, type J,

”tc t”

- thermocouple input, type T,

”tc n”

- thermocouple input, type N,

”tc r”

- thermocouple input, type R,

”tc b”

- thermocouple input, type B,

”tc E”

- thermocouple input, type E.

For current and voltage inputs displayed values are defined by parameters “Lo C”,”Hi

C” (or by user defined characteristic points) and parameter ”Pnt”.

”FiLt” - option allows to change the filtration time constant. Expressed in seconds. Acceptable

values range from 0 (no filtration ) to 255.

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7.3.4. “inPt” menu (parameters of temperature inputs)

”Conn” - connection method of RTD input. This parameter can be set to values:

"4 in" - 4-wire method,

”3 in” - 3-wire method, ”2 in” - 2-wire method.

“toFS” - offset expressed in °C, range ± 9.9°C (for RTD input) or ± 99°C (for TC input). This

parameter allows shifting of measurement scale, and express value added to calculated (measured) result.

The offsetting of a scale is realised independently of cold ends automatic compensation.

7.3.5. “inPt” menu (parameters of current and voltage inputs)

”CHAr” - this option presets type of the conversion characteristic, and can be set to:

”Lin” - linear

“Sqr” - squareWhen one of those characteristics is chosen display “Sqrt” - square rootrange is defined by “Lo C” and “Hi C”.

“USEr” - user defined characteristic. Maximal length 20 points. Every point is defined by

user. Adding, Editing and Deleting of points is done by options „AddP”, „EdtP”, „dELP” („InPt” menu) respectively.

If user defined characteristic is selected, and if number of defined points is lower than

2 then warning ”Errc” is displayed in measurement mode.

The process of displayed result calculation is described in details in DISPLAY VALUES CALCULATION paragraph.

”Pnt” - decimal point position. It can be set to one of:

“ 0”, “ 0.0”, “ 0.00”, “0.000”

Decimal point position is changed by [^], [v] buttons.

“Lo C” These parameters describe the values displayed for minimum and maximum input “Hi C” current. For example, if input type is set to 4-20 mA “Lo C” parameter defines the value

displayed when input current is equal 4 mA, and “Hi C” parameter defines the value displayed for 20 mA of input current. Available range for these parameters: -999 ÷ 9999. Negative values can be set by entering '-' sign on the first position (by use of [^], [v] buttons).

If user defined characteristic is selected (parameter “CHAr” = ”USEr”) the parameters „Lo C” and „Hi C” are not available for modification, due to their values are calculated from defined characteristic.

“AddP” - this menu allow user to add single point to the user defined characteristic.

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After selection of this option device waits for „X” and „Y” coordinates of new point.

Modification of the coordinates is done accordingly to numerical parameters edition.

Coordinate „X” defines the percentage ratio of input current to selected current range. The „X” range: -99,9 ÷ 199,9. Coordinate „Y” defines displayed value for particular „X” value. The „Y” value can be changed in range: -999 ÷ 9999, decimal point position

depend on „Pnt” parameter (menu ”inPt ”).

• User can not enter two points with the same value of „X” coordinate. If user trays to do it, ”Err” warning is displayed. To modify any defined point use ”EdtP” option.

• To distinguish „X” and „Y” coordinates, if „X” coordinate is displayed an additional decimal point on utmost right position is displayed.

• If user defined characteristic is selected, and if number of defined points is lower than 2 then warning ”Errc” is displayed in measurement mode.

“dELP” - this option allows user to delete any of the points of the user defined characteristic.

After selection current number of points of the user defined characteristic is displayed for about approx. 1.5 sec. After that device waits for selection of point being deleted (by [^], [v] buttons). The short pressing of [ENTER] button causes by switching between X and Y value of the displayed point. The long press (press and hold at least 2 sec) of [ENTER] button causes by displaying „dEL?” ask. If [ENTER] button is pressed again, current point is deleted and new updated number of points of the user defined characteristic is displayed.

“EdtP” - this option allows user to modify of particular point of the user defined characteristic.

After selection current number of points of the user defined characteristic is displayed for about approx. 1.5 sec. After that device waits for selection of point being edited (by

[^], [v] buttons). The short pressing of [ENTER] button causes by switching between X and Y value of the displayed point. The long press (press and hold at least 2 sec) of [ENTER] button causes by entering to edit the selected coordinate of the point.

Modification of the coordinates is done accordingly to numerical parameters edition.

“AddP”, ”dELP” and “EdtP” options are available only if the user defined characteristic is used (it means when parameter “CHAr” = ”USEr”).

“Lo r”, ”Hi r” - these parameters define the expansion of nominal range in percent. They

determine the permissible range of input signal (Figure 7.1).

The permissible range allow user to exceed the nominal range of input signal. If input value is contained in the permissible range a proper result is displayed. If input signal exceeds this range (defined by “Lo r” and “Hi r”), “-Lo-” or “Hi- ” warning is displayed depend on input signal value.

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Figure 7.1 Example of definition of permissible range of input signal -

“Lo r” and “Hi r” parameters (“4-20” mode)

The “Lo r” parameter is important if input is set to “4-20”, “1-5” or “2-10” mode only, and determines lower border of the permissible range. In the other cases (for current and voltage ranges), lower border of the permissible range is always 0. For example if input is set to “4-20” mode, then lower border is calculated due to expression: I

min

= 4 mA - 4 mA × “Lo r” %. The “Lo r” value can be set from 0 to 99.9%. Parameter “Hi r” determines the upper border of the permissible range accordingly to the expression (for all modes). For example if input is set to “4-20” mode, then upper border is calculated due to expression: I

max

= 20 mA + 20 mA × “Hi r” %. The value of “Hi r” can be set from 0

to 19.9% In example no 1 of the DISPLAY VALUES CALCULATION paragraph the procedure

of the permissible input range determining is presented in details.

If the measurement value do not exceeds permissible measurement range but displayed value exceeds range -999 ÷ 9999, the warning ”-Ov-” is displayed rather than the calculated result.

7.3.6. ”OutP” menu

This menu contains parameters of analogue output control. Menu is available if the device

is equipped witch analogue output.

Analogue output can be controlled depend on both present measured value and peak value (if peak detection is enabled).

“Omod” - analogue output mode. Depending on version of the device there are following

options:

For active current output:

”oFF” - current output disabled,

”

Lo r

” = 75,0% (3 mA)

”

Hi r

” = 5,0 % (1 mA)

permissible measurement range

measurement result is displayed

regardless on nominal range exceeding

nominal measurement range (4-20mA)

mA ] [

22 1 0

min I max

display

message ”

Lo - ”

display

message ”

Hi - ”

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”0-20” - current output enabled with 0 ÷ 20 mA mode, “4-20” - current output enabled with 4 ÷ 20 mA mode, ”modb” - current output controlled via RS-485 interface.

For passive current output:

”oFF” - current output disabled,

“4-20” - current output enabled with 4 ÷ 20 mA mode, ”modb” - current output controlled via RS-485 interface.

For active voltage output:

”oFF” - voltage output disabled, ”0-5” - voltage output enabled with 0 ÷ 5V mode, ”1-5” - voltage output enabled with 1 ÷ 5V mode,

”0-10” - voltage output enabled with 0 ÷ 10V mode, “2-10” - voltage output enabled with 2 ÷ 10 V mode,

”modb” - voltage output controlled via RS-485 interface.

”OUtL” - this parameter determines the input value for which the output signal is minimal (depend

of output mode „Omod”).

“OUtH” - this parameter determines the input value for which the output signal is maximal

(depend of output mode „Omod”).

The analogue output value is calculated due to formula given below:

Out= W−" OUtL" × B−A A

"OUtH"−"OUtL"

where: W – displayed value,

Out – analogue output value, B – higher range limit (20mA / 5V / 10V), A – lower range limit (0mA / 4mA / 0V / 1V / 2v),

“OutL” parameter can be greater than “OutH”. In this case the conversion characteristic

is reversed, it means that if input value raises the output value falls.

”Lo r”, ”Hi r” - this parameters define the output value range. If calculated output value Out

exceeds defined range then analogue output generates signal equal to upper or lower border of the defined range. These parameters defines the percentage extension of nominal analogue range (with 0,1% resolution).

Parameter “Lo r” defines lower border of the range due to formula: Out

min

= A - (A × “Lo r” %), where: A

– lower signal value range limit. This parameter can be set from 0 to 99.9% (for active current output and active

voltage output) or from 0 to 29.9% (for passive current output).

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Parameter “Hi r” defines higher border of the range due to formula:

Out

max

= B + (B × “Hi r” %), where: B – higher signal value range limit. This parameter can be set from 0 to 19.9% (for active and passive current output) or from 0 to 9.9% (for active voltage output).

In example on page 48 of the DISPLAY VALUES CALCULATION paragraph the procedure of the analogue outputs determining is presented in details.

“AL” - this parameter determines the behaviour of analogue output if any critical situation occurs.

According to version of the device, this parameter can be set:

For active current output:

“noCH” - current will not change,

“22.1” - current will be set to 22.1

mA, “3.4” - current will be set to 3.4 mA, “0.0” - current will be set to 0 mA.

For passive current output:

“noCH” - current will not change, “22.1” - current will be set to 22.1 mA, “3.4” - current will be set to 3.4 mA,

For active voltage output:

“noCH” - voltage will not change, “11.0” - voltage will be set to 11 V,

“5.5” - voltage will be set to 5.5 V, “1.2” - voltage will be set to 1.2 V. “0.6” - voltage will be set to 0.6 V, “0.0” - voltage will be set to 0 V.

When the critical situation goes, the output signal will be set to value calculated due to formulas given above.

7.3.7. ”bri” parameter

This parameter allows user to set bright of the LED display, bright can be set to

conventional values from 1 to 8.

7.3.8. ”CoL” menu

i Appears only in device version with multicolor display type.

Menu contains smooth display colour change settings.

Selected colour proportions

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Colour number

Red [%]

Green [%]

coL1

100

coL2

87,5

12,5

coL3

coL4

62,5

37,5

coL5

coL6

37,5

62,5

coL7

coL8

12,5

87,5

coL9 0 100

Tab.7.1. Red and green proportions depending on selected colour

“SCoL” - display basic colour. It can be set according to the table above.

“C r1” “C r4” - control the display colour according to relay state:

”coL0” - control for particular relay is off,

”coL1” ”coL9” - the display will change colour to the one, which corresponds to selected

value (“coL1” - red “coL9” - green), when relay changes its state to active,

“C AL” - control the display colour according to alarm situations:

”coL0” - control is off,

”coL1” ”coL9” - display will change colour to the one, which corresponds to selected

value (“coL1” - red “coL9” - green), when alarm situation appears,

“C Pr” - this setting enables additional threshold for display colour controlling, detailed conditions

of this control are defined by „dir”, „SEtP” and „HySt” parameters of „CoL” submenu,

”coL0” - no additional threshold. ”coL1” ”coL9” - additional threshold enabled, display will change colour to the one,

which corresponds to selected value (“coL1” - red “coL9” - green), after result satisfy conditions defined by „dir”, „SEtP” and „HySt”.

When more then one color control is active, the highest priority has relay with the

lowest number (and in sequence: higher relay number → lower priority). The next one is additional threshold control (“C Pr” parameter). The lowest priority has alarm

state control (“C AL” parameter).

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“dir” - this parameter defines display colour change depending on the displayed value direction

change:

”morE” - display will change its colour to the one specified by “C Pr” parameter, when

displayed value is higher than threshold +hysteresis

”LESS” - display will change its colour to the one specified by “C Pr” parameter, when

displayed value is lower than threshold + hysteresis

“SEtP”

- additional threshold value (range -999 ÷ 9999 ). Negative values can be input by

selecting a “-” sign on first digit (to change value use [^] and [v] buttons). Threshold is the medium value of relay hysteresis.

“HYSt”

- Hysteresis of colour indication (range 0 ÷ 999). The display colour can change when an input signal is out of threshold-hysteresis to threshold+hysteresis zone.

Presented parameters should be set ensuring that values ”SEtP” + ”HYSt” and ”SEtP” - ”HYSt”

do not exceed the measured range.

“CrES” - permission to use any local key to confirm display colour change. This

acknowledgement causes one-time display return to its basic colour, and deletes all events which implicate display colour changes to active colour.

”oFF” - option disabled, ”on” - option enabled.

7.3.9. ”HOLd” menu

This menu contains parameters connected with peak detection function. See also full description of the peak detection function in paragraph: DETECTION OF THE PEAK VALUES

“modE” - the type of detected changes of the input signal, can be set to values:

”norm” - peaks, peak and next drop of the input signal of value equal at least “PEA”, ”inv” - drops, drop and next peak of the input signal of value equal at least “PEA”,

“PEA” - minimal detected signal change classified as peak or drop (see Figure 6.4) “timE” - maximum time of displaying of the peak (drop) value, can be set from 0.0 to 19.9

sec, with 0.1 sec. resolution. If „HdiS”=”HOLD” then setting parameter "timE"=0.0

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causes holding peak value until [ESC] button is pressed. If „HdiS”=”rEAL” then value "timE"=0.0 means no holding.

“HdiS” - type of displayed values:

”rEAL” - current value is displayed, ”HOLd” - peak (drop) value is displayed,

“H r1” ÷ “H r4”- relay/LED outputs ( R1÷R4) operation mode:

”rEAL” -relay/LED operates depend on the current value, ”HOLd” - relay/LED operates depend on the peak (drop) value.

7.3.10. ”SECu” menu

This menu contains presets connected with availability of other parameters:

“Scod” - user password (4-digits number). If this parameter is set at value “0000”, user password

is turned off.

If the user do not remember his password, the access to the menu is possible

by the “one-use password”. To get this password please contact with Marketing Division. “Single use password” can be used only one time, after that it is

destroyed. Entering this password causes in clearing of user password, it

means sets the user password to „0000”.

The “one-use password” can be used ONE TIME ONLY, it is impossible to use it again! The “one-use password” can be restored by Service Division only.

“A r1 ÷ A r4” - this option permits user (”on”) or prohibits (”oFF”) to modify the thresholds of the

relays/LEDs R1 ÷ R4 without knowledge about user password.

7.3.11. ”rS” menu

This menu is connected with RS-485 interface, and sets his properties:

”Addr”

- this parameter defines the address of the device, accordingly to Modbus protocol. It can be set in range from 0 to 199. If the value 0 is set then device, responds to frames with address 255 (FFh).

”bAud”

- this parameter determines RS-485 interface baud rate. It can be set to one of 8 possible values: ”1.2”, ”2.4”, ”4.8”, ”9.6”, ”19.2”, ”38.4”,”57.6”,”115.2”, which respond to the baud rates of 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200 bit/s respectively.

”mbAc”

- this parameter sets the access to the configuration registers of the device. Possible values:

”on” - configuration registers can be set via RS-485 interface, ”oFF” - configuration registers can not be set via RS-485 interface.

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The access to registers no 04h and 05h cant be denied by ”mbAc” parameter (see: LIST OF REGISTERS). ”mbtO” - this parameter defines maximal time (sec) between following frames

received by the device. If the delay will be greater than the value of ”mbtO” parameter, the relays and analogue outputs which are controlled via RS-485 interface, will set to alert state (see "OUtP" menu, and “rEL1” menu description). Parameter “mbtO” can be set to values from 0 to 99 seconds. The value 0 means that the time will be not controlled.

”rESP” - this parameter defines minimal (additional) delay between the Modbus message and

the answer of the device (received and sent via RS-485 interface). This additional delay allows the device to work with poor RS-converters which do not works properly on baud rates higher than 19200. This parameter can be set to one of values:

”Std” - answer as quick as possible, no additional delay

” 10c” ”

20c”

” 50c”-one character time depends on selected baud rate answer delayed

of 10, 20, 50, 100 of 200 chars respectively, where

”100c” ”200c”

In the most cases parameter ”rESP” should be set to ”Std” (no additional delay). Unfortunately for some third party RS-converters ”rESP” should be adjusted experimentally. Table 7.2 contains most frequently used values.

”bAud” parameter

“38.4”

“57.6”

“115.2”

”rESP” parameter

“ 10c”

“ 20c”

“ 50c”

Tab.7.2. Settings of ”rESP” parameter

7.3.12. ”Edit” paramet er

This parameter allows to change the edition mode of numerical parameters:

”dig” - the change to “by digit” mode, ”Slid” - slide change mode.

7.3.13. ”dEFS” parameter

This setting allows to restore the factory settings of the device. To get the access to this

option special password is required: „5465”, next the device displays acknowledge question

„SEt?”. Press [ENTER] to acknowledge the restoring of factory settings or [ESC] to cancel.

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7.3.14. ”SErv” menu

This menu contains the parameters for authorized service only. To enter this menu proper

service password must be entered. Improper settings can causes of damage of the device.7.4.

MENU STRUCTURE

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8. OVER-CURRENT PROTECTION

The current input of the device is equipped with over-current protection circuit. This circuit protects the standard resistor to damage. Maximum input current is set to 50mA (typical). When

temperature of the standard resistor falls, the protection circuit will turn off himself automatically, and the device will measure the input current again. Due to thermal phenomenon in the standard resistor, precision of the measurement may be lower, during few minutes (up to the standard resistor temperature will falls to the environment temperature).

9. DISPLAYED VALUES CALCULATION

For simplicity of examples it's assumed that current input is selected, and all calculations are related to this input. When voltage input is selected calculations are similar (be sure of particular ranges and units).

The first step to compute the result of measure is the calculation of the normalized result (it means result of 0-1 range). To do it, the begin of the input range (0 mA for 0-20mA range, and 4mA for 4-20mA range) must be subtracted from measured value. Next, received result must be divided by the width of the input range ( it means 20mA for 0-20mA range, and 16mA for 4-20mA range). So normalized result can be expressed by expressions:

= I

inp.

−4

for 4 ÷ 20mA range

= 20 for 0 ÷ 20mA range

where I

inp.

Means input current (in mA), and I

n –

normalized result.

If measured value exceeds the nominal input range (0-20mA or 4-20mA), and do not exceed the permissible input range, then received normalized In result will exceed 0-1 range, e.g. input range 4-20 mA, input current = 3 mA – the normalized result is equal

-0,0625, and for input current = 22 mA, the normalized result is equal 1,125. In such cases presented expressions are still correct.

9.1. ADDITIONAL CALCULATIONS (USED CONVERSION CHARACTERISTIC)

The manner of the additional computation of the displayed result depends on selected conversion characteristic. All presented charts are connected with the input range 4 - 20 mA.

9.1.1. Linear characteristic

The normalized result is converted by fixed coefficients determined by “Lo C” and “Hi C” parameters (when the normalized results is equal 0, then value “Lo C” is displayed, and when

inp.

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the normalized results is equal 1, then value “Hi C” is displayed). Expression presented below shows the manner of result calculation:

W=I n × "Hi C"−"Lo C" "Lo C" ,

Figure. 9.1 Normal („Lo C” < ”Hi C) and inverted („Lo C” > ”Hi C) characteristic

9.1.2. Square characteristic

The normalized result is squared and further conversion is done as for linear characteristic. Conversion is made accordingly with the expression:

W=I

× "Hi C"−"Lo C" "Lo C" ,

where W means the displayed value.

Figure. 9.2 Normal („Lo C” < ”Hi C) and inverted („Lo C” > ”Hi C) characteristic

9.1.3. Square root characteristic

The normalized result is rooted and further conversion is done as for linear characteristic. Conversion is made accordingly with the expression:

where

means the displayed value

The value of the

“Lo C”

parameter can be higher than the value of

“Hi C”

parameter. In such a case, for an increasing value of input current the displayed

value decreases.

Input current [mA]

0 4 8

Hi C

Lo C

Input current

[mA]

0 4 8

Lo C

Hi C

Input current [mA]

0 4 8

Lo C

Hi C

Input current [mA]

0 4 8

Hi C

Lo C

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W= I n × "Hi C"−"Lo C" "Lo C" ,

where W means the displayed value.

Showed above expression is not valid when normalized result is negative. It is possible for 4-20 mode only. In this case (In<0) the displayed result is equal “Lo C” (see graphs below).

Figure. 9.3 Normal („Lo C” < ”Hi C) and inverted („Lo C” > ”Hi C) characteristic

9.1.4. User defined characteristic

User defined characteristic is defined as set of X-Y points. Number of the points is variable and may be set from 2 to 20 points which make linear segments (see graph and see Menu ”inPt”). Due to the normalized result In , the device computes specific segment, e.g. for characteristic from figure below, and In = 0,65 the segment between points X = ”50.0.” and X = ”70.0.” will be chosen. Let's mark those points as PL (point low) and PH (point high) - in this example PL= “50.0,” and PH = “70.0.”, and the normalized result In for the point PL as Ip (in this example Ip = In(PL) = 0,5). The displayed result is calculated accordingly to the expression:

W= I n−I p × [Y PH −Y PL ] × 100 Y PL

where Y(PH), X(PH), Y(PL), X(PL) mean values of X and Y coordinates of PH and PL points.

If the normalized result exceeds the user defined characteristic values, then specific utmost segment, defined by two next points, is used for calculations. If characteristic from figure below is used, and if In>1 then segment defined by points X(PL) = “90.0.”,

X(PH) = “100.0.” will be used.

Input current [mA]

0 4 8

Lo C

Hi C

Input current [mA]

0 4 8

Hi C

Lo C

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Figure. 9.4 Example of user defined characteristic

9.2. EXAMPLES OF CALCULATIONS

Example 1: Selection of the permissible input range (“4-20” mode)

If in “4-20” mode the user sets “Lo r” = 20,0% and “Hi r” = 10,0%, then permissible input currents range will be equal: 3,2 mA ÷ 22 mA. Lower border of the range is the result of calculations: 4 mA - 4 mA × 20%, and the higher : 20 mA + 20 mA × 10%.

Example 2: The normalized In result calculation

Let the input mode = 4-20 mA. The normalized In result is calculated accordingly to the expression on page 43, so if Iin = 10 mA then 10 mA - 4 mA = 6 mA, and this result should be divided by the width of input range (16 mA). Finally the normalized result: In = 6/16 = 0,375.

In case when input current exceeds nominal measurement range, calculations are similar. For example if input current is equal 2,5 mA then In = (2,5 - 4)/16 @ -0,0938, and if input current is equal 20,5 mA then In = (20,5 - 4)/16 @ 1,0313.

Example 3: The linear characteristic

Let the input mode = 4-20 mA, and parameters “Lo C” and “Hi C” equal to -300 and 1200 respectively. The calculations will be done for three different input currents from example 2.

Prąd wejściowy [mA]

4 8 12

Y (PH)

0 0 ,

35 0 ,

5 , 0 7 ,

0 1 9 , 0

Y (PL)

X = „20.0.”

X = „35.0.”

X (PL) = „50.0.”

X (PH) = „70.0.”

X = „90.0.”

X = „100.0.”

Input current [mA]

Normalized measurement I

(for 0-20 mA range)

elements characteristic

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a) Iin =10 mA and In = 0,375

Accordingly to expression on page 44 for linear characteristic: 0,375 × [1200 -(- 300)] @ 562 and next, the “Lo C” value is added to the result , so the

displayed value: W @ 562 + (-300) = 262

b) Iin = 2,5 mA and In = -0,0938. W

@ -441.

c) Iin = 20,5 mA and In = 1,0313. W

@ 1247.

Example 4: The square characteristic

Let the input mode = 4-20 mA, and parameters “Lo C” and “Hi C” equal to -300 and 1200 respectively. The calculations will be done for there different input currents from example 2. a) Iin =10 mA and In = 0,375

Accordingly to expression on page 44 for square characteristic: (0,375)2 × [1200 -(- 300)] @ 211. and next, the “Lo C” value is added to the result , so the displayed value: W

@ 211 + (-300) = -89 b) Iin = 2,5 mA and In = -0,0938. W

@ -287.

c) Iin = 20,5 mA and In = 1,0313. W

@ 1295.

Example 5: The square root characteristic

Let the input mode = 4-20 mA, and parameters “Lo C” and “Hi C” equal to -300 and 1200

respectively. The calculations will be done for there different input currents from example 2. a) Iin =10 mA and In = 0,375

Accordingly to expression on page 45 for square root characteristic:

0,375 × [1200 -(- 300)] @ 919. and next, the “Lo C” value is added to

the result , so the displayed value: W @ 919 + (-300) = 619

b) Iin = 2,5 mA and In = -0,0938 , normalized result is negative , so the displayed value is equal to

“Lo C” parameter: W @ “Lo C” = -300.

c) Iin = 20,5 mA and In = 1,0313.

W @ 1223.

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Example 6: The user defined characteristic

Let the input mode = 4-20 mA, and the user selected the 10 segment characteristic. To do this it is necessary to enter X and Y coordinates of 11 points (see Menu ”inPt”). The calculations will be done for three different input currents from example 2, so in calculations some of the segments will be used only.

Let the following points will be given: X1 = “00.0.”, Y1 = “-50.0”, X2= “10.0.”, Y2 = “-30.0”,

....

X6 = “30.0.”, Y6 = “30.0”, X7 = “40.0.”, Y7 = “80.0”,

....

X10 = “90.0.”, Y10 = “900.0”, X11 = “100.0.”, Y11 = “820.0”, Additionally all other points must to be defined and stored in the device memory. a)

Iin =10 mA and In = 0,375

The segment defined by X6 = “30.0.” and X7 = “40.0.” for this In will be selected. Accordingly to expressions given for user defined characteristic (see page 45) X6(PL) = 30, Y6(PL) = 30, X7(PH) = 40, Y7(PH) = 80 and Ip = 0,3 , the displayed value :

W= I n−I p × [Y PH −Y PL ] × 100 Y PL =

b) Iin = 2,5 mA and In = -0,0938, because of the normalized In value is lower than 0, the segment defined by X1 and X2 will be selected. X1(PL) = 0, Y1(PL) = -50, X2(PH) = 10,

Y2(PH) = -30 and Ip = 0. For these values the displayed value W @ -69. c) Iin = 20,5 mA and In = 1,0313. , because of the normalized In value is higher than

1, the segment defined by X10 and X11 will be selected, and X10(PL) = 90, Y10(PL) = 900, X11(PH) = 100, Y11(PH) = 820 and Ip = 0,9 for these values the displayed value W @ 795.

Example 7: Current output value calculation

Lets assume that we have active current output and its parameters are: “modE” = “4-20”, “OUtL” = 100, “OUtH” = 200, “Lo r” = 5.0, “Hi r” = 5.0

Parameters “Lo r” and “Hi r” define working range of current output to 3.8 ÷ 21 mA.

Output current will be calculated for three displayed values „D”: a) D = „17.5”

According to formula from page 35:

out

= (17.5-10.0) / (20.0-10.0) × 16 mA + 4 mA = 0.75 ·16 + 4 = 16 mA

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Calculated I

out

do not exceeds the output working range (3.8 - 21 mA). b)

D = „20.5”

According to formula from page 35:

out

= (20.5-10.0) / (20.0-10.0) × 16 mA + 4 mA = 1.05 ·16 + 4 = 20.08 mA

Calculated I

out

do not exceeds the output working range (3.8 - 21 mA). c) D =

„30.0”

According to formula from page 35:

out

= (30.0-10.0) / (20.0-10.0) × 16 mA + 4 mA = 2 ·16 + 4 = 36 mA.

Calculated I

out

exceeds the output working range (3 - 21 mA), so current output will generate current equal to the upper border of range defined by parameter “Lo r” and “Hi r” (it means 21 mA).

10. THE MODBUS PRO TOCOL 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.

10.1. LIST OF REGISTERS

Write

Range

01h

-999 ÷ 9999

Measurement value (no decimal point)

02h

0h, A0h, 60h,

C0h, 10h,

20h

The status of the measurement; 0h - data valid; A0h - top border of the measurement range is exceeded; 60h - bottom border of the measurement range is exceeded; C0h - sensor failure; 10h - error of user characteristic; 20h - waiting for the first measure

03h

Yes

0 ÷ 3

“Pnt ” parameter in “InPt” menu (decimal point position) 0 - “ 0”; 1 - “ 0.0”; 2 - “ 0.00”; 3 - “0.000”

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04h

Yes

see descr.

State of the relays (binary format) (1

- on, 0 - off): 00000000 0000dcba a - relay R1; b - relay R2; c - relay R3; d - relay R2; If written, only a, b, c, d bits are important (others are ignored) these bits allows user to control the relays via RS-485 interface

05h

Yes

0h ÷ 1800h

State of active current output, expressed in 1/256 mA units – it means that high byte express integer part, and low byte fractional part of desired output current.

Write

Range

Yes

2CCh÷1800h

State of passive current output, expressed in 1/256 mA units – it means that high byte express integer part, and low byte fractional part of desired output current.

Yes

0h ÷ 1600h

State of active voltage output, expressed in 1/512 V units – it means that high byte express integer part, and low byte fractional part of desired output voltage.

06h

-999 ÷ 9999

Peak (drop) value (no decimal point)

08h

0 ÷ 50

Temperature inside device housing expressed by 1°C

10h

Yes

0 ÷ 20

“tyPE” parameter in “InPt” menu (nominal input range): 0 - 0-20 mA range; 1 - 4-20 mA range; 2 - 0-5 V range; 3 - 1-5 V range; 4 - 0-10 V range; 5 - 2-10 V range; 6 - 0-60 mV range; 7 - 0-75 mV range; 8 - 0-100 mV range; 9 - 0-150 mV range; 10 - Pt-100; 11 - Pt-500; 12 - Pt-1000

13 - thermocouple input K; 14 - thermocouple input S; 15 - thermocouple input J; 16 - thermocouple input T; 17 - thermocouple input N; 18 - thermocouple input R; 19 - thermocouple input B; 20 - thermocouple input E;

11h

Yes

0 ÷ 3

“CHAr” parameter in “InPt” menu (characteristic type) 0 - linear ; 1 - square; 2 - square root; 3 - user defined

12h

Yes

0 ÷ 255

“FiLt” parameter in “InPt” menu (time constant in seconds)

13h

Yes

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”

14h

Yes

-999 ÷ 9999

“Lo C” parameter in “InPt” menu, no decimal point included

15h

Yes

-999 ÷ 9999

“Hi C” parameter in “InPt” menu, no decimal point included

16h

Yes

0 ÷ 999

“Lo r” parameter in “InPt” menu, in 0.1%

17h

Yes

0 ÷ 199

“Hi r” parameter in “InPt” menu, in 0.1%

18h

Yes

-99 ÷ 99

“toFS” parameter in “InPt” menu (shift of measurement scale), expressed by 0.1°C (for RTD input) or by 1.0°C (for TC input)

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19h

Yes

0 ÷ 2

“Conn” parameter in “InPt” menu (RTD input connection method): 0 - “4 in”; 1 - “3 in”; 2 - “2 in”

20h

Yes

0 ÷ 199

Device address

21h

21DAh

Device identification code (ID)

22h

Yes

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

23h

Yes

0 ÷ 1

“mbAc” parameter in “rS” menu (permission to write registers via RS-485 interface); 0 - write denied ; 1 - write allowed

24h

Yes

see descr.

Parameters of “SECU” menu (binary format (0 - „oFF”, 1 - „on”): bit 0 - “A r1” parameter; bit 1 - “A r2” parameter bit 2 - “A r3” parameter; bit 3 - “A r4” parameter

Write

Range

25h

Yes

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;

27h

Yes

0 ÷ 99

“mbtO” parameter in “rS” menu (maximum delay between received frames); 0 - no delay checking; 1 ÷ 99 - maximum delay expressed in seconds

28h

Yes

0 ÷ 1

“AL” parameter in “bEEP” menu: 0 - off; 1 - on

29h

Yes

0 ÷ 1

“R1” parameter in “bEEP” menu: 0 - off; 1 - on

2Ah

Yes

0 ÷ 1

“R2” parameter in “bEEP” menu: 0 - off; 1 - on

2Bh

Yes

0 ÷ 1

“R3” parameter in “bEEP” menu: 0 - off; 1 - on

2Ch

Yes

0 ÷ 1

“R4” parameter in “bEEP” menu: 0 - off; 1 - on

2Dh

Yes

1 ÷ 8

“bri” parameter (display brightness); 1 - the lowest brightness; 8 - the highest brightness

2Eh

Yes

1 ÷ 9

“SCoL” parameter in “CoL” menu (main colour of display); 1

- red; 9 - green

2Fh

Yes

0 ÷ 1

“Edit” parameter (numerical parameters edit mode); 0 - „dig” mode; 1 - „SLid” mode

30h

Yes

-999 ÷ 9999

“SEtP” parameter in “rEL1” menu, no decimal point included

31h

Yes

-999 ÷ 999

“HySt” parameter in “rEL1” menu, no decimal point included

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32h

Yes

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

33h

Yes

0 ÷ 999

“t on” parameter in “rEL1” menu, expressed in tenth of seconds or tenth of minutes depend on “unit” parameter - register no. 35h)

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)

Write

Range

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

40h

Yes

-999 ÷ 9999

“SEtP” parameter in “rEL3” menu, no decimal point included

41h

Yes

-999 ÷ 999

“HySt” parameter in “rEL3” menu, no decimal point included

42h

Yes

0 ÷ 5

“modE” parameter in “rEL3” menu: 0 - “noAC” mode; 1 - “on” mode; 2 - “oFF” mode; 3 - “in” mode; 4 - “out” mode; 5 - “modb” mode

43h

Yes

0 ÷ 999

“t on” parameter in “rEL3” menu, expressed in tenth of seconds or tenth of minutes depend on “unit” parameter - register no. 45h)

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44h

Yes

0 ÷ 999

“toFF” parameter in “rEL3” menu, expressed in tenth of seconds or tenth of minutes depend on “unit” parameter - register no. 45h)

45h

Yes

0 ÷ 1

“unit” parameter in “rEL3” menu: 0 - seconds; 1 - minutes

46h

Yes

0 ÷ 2

“AL” parameter in “rEL3” menu: 0 - no changes; 1 - on; 2 - off

47h

Yes

-999 ÷ 9999

“SEt2” parameter in “rEL3” menu, no decimal point included

48h

Yes

-999 ÷ 9999

“SEtP” parameter in “rEL4” menu, no decimal point included

49h

Yes

-999 ÷ 999

“HySt” parameter in “rEL4” menu, no decimal point included

4Ah

Yes

0 ÷ 5

“modE” parameter in “rEL4” menu: 0 - “noAC” mode; 1 - “on” mode; 2 - “oFF” mode; 3 - “in” mode; 4 - “out” mode; 5 - “modb” mode

4Bh

Yes

0 ÷ 999

“t on” parameter in “rEL4” menu, expressed in tenth of seconds or tenth of minutes depend on “unit” parameter - register no. 4Dh)

4Ch

Yes

0 ÷ 999

“toFF” parameter in “rEL4” menu, expressed in tenth of seconds or tenth of minutes depend on “unit” parameter - register no. 4Dh)

4Dh

Yes

0 ÷ 1

“unit” parameter in “rEL4” menu: 0 - seconds; 1 - minutes

4Eh

Yes

0 ÷ 2

“AL” parameter in “rEL4” menu: 0 - no changes; 1 - on; 2 - off

4Fh

Yes

-999 ÷ 9999

“SEt2” parameter in “rEL4” 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

Write

Range

55h

Yes

0 ÷ 1

“H r2” parameter in “HOLd” menu: 0 - “rEAL” mode ; 1 - “HOLd” mode

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56h

Yes

0 ÷ 1

“H r3” parameter in “HOLd” menu:

0 - “rEAL” mode ; 1 - “HOLd” mode

57h

Yes

0 ÷ 1

“H r4” parameter in “HOLd” menu:

0 - “rEAL” mode ; 1 - “HOLd” mode

58h

Yes

0 ÷ 1

“HOUt” parameter in “HOLd” menu:

0 - “rEAL” mode ; 1 - “HOLd” mode

60h

Yes

0 ÷ 9

“C r1” parameter in “CoL” menu”: 0 – off; 1 – red; 9 – green

61h

Yes

0 ÷ 9

“C r2” parameter in “CoL” menu”: 0 – off; 1 – red; 9 – green

62h

Yes

0 ÷ 9

“C r3” parameter in “CoL” menu”: 0 – off; 1 – red; 9 – green

63h

Yes

0 ÷ 9

“C r4” parameter in “CoL” menu”: 0 – off; 1 – red; 9 – green

64h

Yes

0 ÷ 9

“C AL” parameter in “CoL” menu”: 0 – off; 1 – red; 9 – green

65h

Yes

0 ÷ 9

“C Pr” parameter in “CoL” menu”: 0 – off; 1 – red; 9 – green

66h

Yes

0 ÷ 1

“CrES” parameter in “CoL” menu (reset of colour indication):

0 - „oFF”; 1 - „on”

67h

Yes

0 ÷ 1

“dir” parameter in “CoL” menu (direction of value changes): 0 - „morE”; 1 - „LESS”

68h

Yes

-999 ÷ 9999

“SEtP” parameter in “CoL” menu, no decimal point included

69h

Yes

-999 ÷ 999

“HySt” parameter in “CoL” menu, no decimal point included

70h

Yes

-999 ÷ 1999

The value of „X” coordinate of point no. 1 of the user defined characteristic, expressed in 0.1%

71h

Yes

-999 ÷ 9999

The value of „Y” coordinate of point no. 1 of the user defined characteristic, no decimal point included

72h5 ÷ 95h

Further pairs of „X” - „Y” coordinates of points no. 2 ÷ 19 of the user defined characteristic

96h

Yes

-999 ÷ 1999

The value of „X” coordinate of point no. 20 of the user defined characteristic, expressed in 0.1%

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97h

Yes

-999 ÷ 9999

The value of „Y” coordinate of point no. 20 of the user defined characteristic, no decimal point included

Write

Range

A0h

Yes

0 ÷ 3

“Omod” parameter in “OUtP” menu (active current output mode) 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

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

Yes

0 ÷ 5

“Omod” parameter in “OUtP” menu (active voltege output mode) 0 - voltage output disabled; 1 - voltage output enabled with 0÷5V

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

A1h

Yes

-999 ÷ 9999

“OUtL” parameter in “OUtP” menu, no decimal point included

A2h

Yes

-999 ÷ 9999

“OUtH” parameter in “OUtP” menu, no decimal point included

A3h

Yes

0 ÷ 999

“Lo r” parameter in “OUtP” menu, for active current output and active voltage output, expressed in 0.1%

Yes

0 ÷ 299

“Lo r” parameter in “OUtP” menu for passive current output,

expressed in 0.1%

A4h

Yes

0 ÷ 199

“Hi r” parameter in “OUtP” menu for active and passive current

output, expressed in 0.1%

Yes

0 ÷ 99

“Hi r” parameter in “OUtP” menu for active voltage output,

expressed in 0.1%

A5h

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

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

Yes

0 ÷ 5

“AL” parameter in “OUtP” menu (active voltage output value on 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.

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10.2. 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).

10.3. 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), SUR-457 device address = 01h:

ADDR

FUNC

REG H,L

COUNT H,L

CRC L,H

a) The answer (we assume that the measure result is not out of range):

ADDR

FUNC

BYTE C

DATA H,L

CRC L,H

DATA H, L - displayed value = 255, no decimal point. Decimal point position can be read from reg. 03h.

b) The answer (if an error occur):

ADDR

FUNC

ERROR

CRC L,H

ERROR - error code = 60h, bottom border of the measurement range is exceeded 2.

Read of device ID code

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ADDR

FUNC

REG H,L

COUNT H,L

CRC L,H

The answer:

ADDR

FUNC

BYTE C

DATA H,L

CRC L,H

DATA - identification code (21DAh)

3. Change of the device address from 1 to 2 (write to reg. 20h)

ADDR

FUNC

REG H,L

DATA H,L

CRC L,H

DATA H - 0 DATA L - new device address (2)

ADDR

FUNC

REG H,L

DATA H,L

CRC L,H

4. Change of baud rate of all devices connected to the net (BROADCAST message).

ADDR

FUNC

REG H,L

COUNT H,L

CRC L,H

DATA H - 0

DATA L - 4, new baud rate 19200 baud i Device do not

reply to BROADCAST-type messages.

5. Read of the registers 1, 2 and 3 in one message (example of reading a number of

registries in one frame):

ADDR

FUNC

REG H,L

COUNT H,L

CRC L,H

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

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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”).

There is no full implementation of the Modbus Protocol in the device. The functions presented above are available only.

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11. DEFAULT AND USER'S SETTINGS LIST

Parameter

Description

Default value

User's value

Desc.

page

Parameters of relay R1 operation (“rEL1” menu)

SEtP

Relay R1 threshold

20.0

SEt2

Relay R1 second threshold

40.0

HYSt

Hysteresis of relay R1

0.0

modE

Operation mode of relay R1

t on

Turn on delay of relay R1

0.0

toFF

Turn off delay of relay R1

0.0

unit

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)

SEtP

Relay R2 threshold

40.0

SEt2

Relay R2 second threshold

60.0

HYSt

Hysteresis of relay R2

0.0

modE

Operation mode of relay R2

t on

Turn on delay of relay R2

0.0

toFF

Turn off delay of relay R2

0.0

unit

Unit of “t on”, “toFF” parameters of relay R2

SEC

Reaction for critical situation of relay R2

oFF

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Parameters of relay R3 operation (“rEL3” menu)

SEtP

Relay R3 threshold

60.0

SEt2

Relay R3 second threshold

80.0

HYSt

Hysteresis of relay R3

0.0

modE

Operation mode of relay R3

t on

Turn on delay of relay R3

0.0

toFF

Turn off delay of relay R3

0.0

unit

Unit of “t on”, “toFF” parameters of relay R3

SEC

Reaction for critical situation of relay R3

oFF

Parameters of relay R4 operation (“rEL4” menu)

SEtP

Relay R4 threshold

80.0

SEt2

Relay R4 second threshold

100.0

HYSt

Hysteresis of relay R4

0.0

modE

Operation mode of relay R4

Parameter

Description

Default value

User's value

Desc.

page

t on

Turn on delay of relay R4

0.0

toFF

Turn off delay of relay R4

0.0

unit

Unit of “t on”, “toFF” parameters of relay R4

SEC

Reaction for critical situation of relay R4

oFF

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Activation of acoustic signal (menu “bEEP”)

Activation of acoustic signal by critical situation

oFF

Activation of acoustic signal by relay R1

oFF

Activation of acoustic signal by relay R2

oFF

Activation of acoustic signal by relay R3

oFF

Activation of acoustic signal by relay R4

oFF

Configuration of measurement input (“inPt” menu)

tYPE

Input mode

„4-20”

Conn

Connection method

„4-in”

FiLt

Filtering time constant (in seconds)

toFS

Shifting of measurement scale

0.0

CHAr

Conversion characteristic mode

Lin

Pnt

Decimal point position

0.0

Lo C

Minimum displayed value (for nominal range)

000.0

Hi C

Maximum displayed value (for nominal range)

100.0

Lo r

Extension of the bottom of the nominal input range

5.0 (%)

Hi r

Extension of the top of the nominal input range

5.0 (%)

Active current output configuration (“OUtP” menu)

Omod

Active current output mode

„0-20” (mA)

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OUtL

Display value for 0 mA or 4 mA current output

0.0

OUtH

Display value for 20 mA current output

100.0

Lo r

Extension of the bottom of the nominal output range

5.0 (%)

Hi r

Extension of the top of the nominal output range

5.0 (%)

Current output value on critical exception

22.1 (mA)

Passive current output configuration (“OUtP” menu)

Omod

Passive current output mode

„4-20” (mA)

OUtL

Display value for 4 mA current output

0.0

OUtH

Display value for 20 mA current output

100.0

Parameter

Description

Default value

User's value

Desc.

page

Lo r

Extension of the bottom of the nominal output range

5.0 (%)

Hi r

Extension of the top of the nominal output range

5.0 (%)

Current output value on critical exception

22.1 (mA)

Active voltage output configuration (“OUtP” menu)

Omod

Active voltage output mode

„0-10” (V)

OUtL

Display value for 0 V, 1 V or 2 V voltage output

0.0

OUtH

Display value for 5 V or 10 V voltage output

100.0

Lo r

Extension of the bottom of the nominal output range

5.0 (%)

Hi r

Extension of the top of the nominal output range

5.0 (%)

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Voltage output value on critical exception

11.0 (V)

Display parameters

bri

Display brightness

bri6

36 Configuration of peaks detection function (“HOLd” menu)

modE

Kind of detected changes

norm

PEA

Minimum detected change

0.0

timE

Maximum time of peak displaying

0.0

HdiS

The type of displayed value

HOLd

H r1

Source of relay R1, and LED R1 control

rEAL

H r2

Source of relay R2, and LED R2 control

rEAL

H r3

Source of relay R3, and LED R3 control

rEAL

H r4

Source of relay R4, and LED R4 control

rEAL

Settings of access to the configuration parameters (“SECu” menu)

A r1

Permission to changes of relay R1 threshold without of the user password knowledge

A r2

Permission to changes of relay R2 threshold without of the user password knowledge

A r3

Permission to changes of relay R3 threshold without of the user password knowledge

A r4

Permission to changes of relay R4 threshold without of the user password knowledge

RS-485 interface configuration (menu “rS”)

Addr

Device address

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bAud

Baud rate

9.6

mbAc

Permission to changes of configuration registers

Parameter

Description

Default value

User's value

Desc.

page

mbtO

Maximum delay between received messages

rESP

Additional delay of answer transmission

Std

Configuration of numerical parameters edition

Edit

Numerical parameters edit mode

dig

Page 66

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