Omega LDB-CR User guide

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User’s Guide

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LDB-CR

Chronometers and Time Counters

Page 2

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Servicing North America:

U.S.A. Omega Engineering, Inc. Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only) Engineering Service: 1-800-872-9436 (USA & Canada only) Tel: (203) 359-1660 Fax: (203) 359-7700 e-mail: [email protected]

For Other Locations Visit omega.com/worldwide

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.

Page 3

1. LDB-CR Series

Large format industrial meters with chronometer and me counter funcons

Large format meters for long distance reading, for industrial applicaons. Dierent formats available with 4 and 6 digits, with 60 mm and 100 m digit height. Front keypad to access the conguraon menu, and oponal remote keypad.

Mulple reading me formats in hours, minutes, seconds, cents of seconds and days. Congurable for decimal or sexagesimal reading (me format). Funcons for up and down counng, with preset value congurable.

Controls

Independent controls for ‘start’, ‘stop’ and ‘reset’ through free potenal contacts. Congurable for acvaon with other control signals (NPN, PNP, inducve, ...).

Reset

External reset control, with acvaon congurable by edge or by level, front reset and automac reset congurable when reaching an alarm setpoint.

Special funcons

Special funcons with acvaon by external connecon: counng direcon, total accumulated mes, total exceeded me, display hold, and memory of events, maximum and minimum (see secon 1.14.6).

Alarms

Independent alarms congurable as maximum or minimum, with congurable acvaon and deacvaon delays and oponal inverted relay acvaon and relay manual unlocking. Alarms with ‘repeat’ mode with acvaon at mulples of congured me (see secon 1.14.12).

‘On_alarm’ parameter to link funcons to alarm acvaon;

connue, reset to ‘0’, load ‘preset’ value or stop counng

(see secon 1.14.12).

Flash

Congurable display ashing in case of ‘stop’ counng, ‘start’ counng, or alarm acvaon.

Security on start-up

‘On power-up’ funcon to dene inacvity mes aer power-up, congure the counter status (‘start’ or ‘stop’) aer power-up, and the opon to apply a reset aer power-up.

Memory

The instrument saves and recovers the last reading value in case of power-loss.

Congurable ‘fast-access’ menu

The front key ‘UP’ () gives access to a user congurable menu with direct access to several useful funcons such as alarm setpoints and/or preset value (see secon 1.14.14).

Congurable ‘Fast access’ to selected funcons with key ‘UP’ (5) (see secon 1.14.14), typically alarm setpoints and preset values.

Control and retransmission opons

Output and control opons with 1, 2 and 3 relays, transis tor outputs, controls for SSR relays, isolated analog outputs, communicaons in Modbus RTU, RS-485 ASCII and RS-232.

Mechanical and mounng

Sturdy metal housing with full IP65 protecon. Internal connecons by plug-in screw clamp terminals, and output through cable glands. Housing prepared for panel, wall and hanging mount.

1.1 How to use this manual

If this is the rst me you are conguring a large format meter, below are the steps to follow to install and congure the instrument. Read all the manual secons in

1. Idenfy the instrument format (see secon 1.4)

2. Power and signal connecons

- open the instrument (see secon 1.5)

- connect the power (see secon 1.7)

- connect the signal (see secon 1.8)

- close the instrument (see secon 1.5)

3. Congure the instrument (see secon 1.14)

- select the reading format, counng direcon and preset value (see secon 1.14.2)

4. Advanced conguraon (oponal)

- funcons ‘on power up’, external reset and ‘B’ funcon

(see secon 1.14.7)

- control conguraons (see secon 1.14.10)

- congure the alarms (see secon 1.14.12)

order to have a full and clear view of the characteriscs of the instrument. Do not forget to read the installaon precauons at secon 1.20.

- congure the fast access (see secon 1.14.14), and key ‘LE’ (1.14.15)

- congure other funcons (see secon 1.14.16)

5. If the instrument includes analog output (AO) or serial communicaons (RTU, S4, S2)

- to include an opon to an instrument see secon 1.6

- to congure an installed opon, access the opon

conguraon menu (see secon 1.14.23)

- see secon 2 for informaon regarding the output and

control opons available

6. Install the instrument

- mount on panel, wall or hanging (see secon 1.19)

- adjust the brightness level according to your environmental needs (see secon 1.14.22)

7. Check applicaon examples at secons 1.15 and 1.16

Page 4

1.2 How to order

Format

LDB-26 CR

LDB-24 (60 mm, 4 digits)

LDB-26 (60 mm, 6 digits)

LDB-44

LDB-46

Model Power

(100 mm, 4 digits) (100 mm, 6 digits)

H -

-H (85-265 Vac

and 120-370 Vdc)

-L

(11-36 Vdc isolated)

Color

-R (red led)

-G

(green led)

1.3 Index

1. LDB-CR Series . . . . . . . . . . . . . . . . . . . . . . 2

1.1 How to use this manual . . . . . . . . . . . . . . . . 2

1.2 How to order . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4 Sizes and formats . . . . . . . . . . . . . . . . . . . . 4

1.4.1 Format LDB-24. . . . . . . . . . . . . . . . . . . . 4

1.4.2 Format LDB-44. . . . . . . . . . . . . . . . . . . . 4

1.4.3 Format LDB-26. . . . . . . . . . . . . . . . . . . . 5

1.4.4 Format LDB-46. . . . . . . . . . . . . . . . . . . . 5

1.5 To access the instrument . . . . . . . . . . . . . . . . 6

1.6 Modular system. . . . . . . . . . . . . . . . . . . . . 6

1.7 Power connecons and protecve earth . . . . . . . 7

1.8 Control signal connecons . . . . . . . . . . . . . . . 7

1.8.1 ‘Normal’ connecons . . . . . . . . . . . . . . . . 7

1.8.2 ‘B’ connecons . . . . . . . . . . . . . . . . . . . 7

1.9 Connecons for remote keypad . . . . . . . . . . . . 8

1.10 Funcons included . . . . . . . . . . . . . . . . . . 8

1.11 Reset types. . . . . . . . . . . . . . . . . . . . . . . 8

1.12 Messages and errors . . . . . . . . . . . . . . . . . 8

1.13 Technical specicaons . . . . . . . . . . . . . . . . 9

1.14 Conguraon . . . . . . . . . . . . . . . . . . . . 10

1.14.1 How to operate the menus . . . . . . . . . . . 10

1.14.2 Inial set-up . . . . . . . . . . . . . . . . . . . 11

1.14.3 ‘On power up’ funcon . . . . . . . . . . . . . 12

1.14.4 Flash funcon . . . . . . . . . . . . . . . . . . 12

1.14.6 ‘B’ funcon . . . . . . . . . . . . . . . . . . . . 12

1.14.5 External reset conguraon. . . . . . . . . . . 12

1.14.7 ‘Conguraon’ menu . . . . . . . . . . . . . . 13

1.14.8 Funcons ‘B1’ to ‘B6’ . . . . . . . . . . . . . . 14

1.14.9 ‘B’ funcon conguraon menu . . . . . . . . 15

1.14.10 External controls conguraon . . . . . . . . 16

1.14.11 External control conguraon menu . . . . . 17

1.14.12 Alarms . . . . . . . . . . . . . . . . . . . . . . 18

1.14.13 Alarms conguraon menu . . . . . . . . . . 19

1.14.14 Fast access . . . . . . . . . . . . . . . . . . . 20

1.14.15 Key ‘LE’ . . . . . . . . . . . . . . . . . . . . . 20

Opon 1

- -

-R1 (1 relay)

-AO (analog output)

-RTU (Modbus RTU)

-S4 (RS-485)

-S2 (RS-232)

-T1 (1 transistor)

-SSR (1 control SSR)

-0 (empty)

Opon 2

Opon 3*

*Opon 3 available with formats LDB-26 and LDB-46

Others

1.14.16 ‘Fast access’ conguraon menu . . . . . . . 21

1.14.17 ‘Key LE’ conguraon menu . . . . . . . . . . 21

1.14.18 Le zeros conguraon menu. . . . . . . . . 21

1.14.19 ‘Password’ funcon . . . . . . . . . . . . . . 22

1.14.20 Default factory conguraon . . . . . . . . . 22

1.14.21 Firmware version . . . . . . . . . . . . . . . . 22

1.14.22 Brightness conguraon . . . . . . . . . . . . 22

1.14.23 Access to the opons conguraon menu . . 22

1.15 Example for applicaon 1 . . . . . . . . . . . . . . 23

1.16 Example for applicaon 2 . . . . . . . . . . . . . . 23

1.17 Full conguraon menu. . . . . . . . . . . . . . . 24

1.18 Factory conguraon . . . . . . . . . . . . . . . . 26

1.19 Mounng. . . . . . . . . . . . . . . . . . . . . . . 28

1.20 Installaon precauons . . . . . . . . . . . . . . . 29

1.21 Warranty . . . . . . . . . . . . . . . . . . . . . . . 29

1.22 CE declaraon of conformity . . . . . . . . . . . . 29

2. Output and control modules . . . . . . . . . . . . . . 30

2.1 Module R1 . . . . . . . . . . . . . . . . . . . . . . . 30

2.2 Module T1 . . . . . . . . . . . . . . . . . . . . . . . 30

2.3 Module SSR . . . . . . . . . . . . . . . . . . . . . . 31

2.4 Module AO . . . . . . . . . . . . . . . . . . . . . . 31

2.5 Module RTU . . . . . . . . . . . . . . . . . . . . . . 32

2.6 Module S4 . . . . . . . . . . . . . . . . . . . . . . . 32

2.7 Module S2 . . . . . . . . . . . . . . . . . . . . . . . 33

Page 5

1.4 Sizes and formats

1.4.1 Format LDB-24

‘control led’ - Acve only in modes where seconds are not displayed.

Flashes at 1 second frequency when instrument is counng. O when instrument is not counng.

Size A 340 mm

Size B 135 mm

Size C 3 mm

Size D 55 mm

Power

Opon 2 Opon 1

Remote keypad

1.4.2 Format LDB-44

Signal

CDE

Cable glands

Input signal terminal

Remote keypad terminal Slot for opon 1 Slot for opon 2

Power

Size E 25 mm

Table 1 - Sizes LDB-24

Cut-out G 322 mm (±1)

Cut-out F 117 mm (±1)

Table 2 - Panel cut-out LDB-24

Panel cut-out

(see Table 2)

Power

Opon 2 Opon 1

Remote keypad

Signal

Size A 542 mm

Size B 166 mm

Size C 3 mm

Size D 55 mm

Size E 25 mm

Table 3 - Sizes LDB-44

Cut-out G 524 mm (±1)

Cut-out F 148 mm (±1)

Table 4 - Panel cut-out LDB-44

CDE

Panel cut-out

(see Table 4)

Page 6

1.4.3 Format LDB-26

‘control led’ - Acve only in modes where seconds are not displayed. Flashes at 1 second frequency when

instrument is counng. O when instrument is not counng.

Size A 436 mm

Size B 135 mm

Size C 3 mm

Size D 55 mm

Power

Opon 3 Opon 2

1.4.4 Format LDB-46

Remote keypad

Size E 25 mm

Table 5 - Sizes LDB-26

SignalOpon 1

Cut-out G 418 mm (±1)

CDE

Cable glands

Input signal terminal

Remote keypad terminal Slot for opon 1 Slot for opon 2 Slot for opon 3

Power

Cut-out F 117 mm (±1)

Table 6 - Panel cut-out LDB-26

Panel cut-out

(see Table 6)

Power

Opon 3 Opon 2

Size A 740 mm

Size B 166 mm

Size C 3 mm

Size D 55 mm

Size E 25 mm

Remote keypad

Table 7 - Sizes

SignalOpon 1

Cut-out G 722 mm (±1)

LDB-46

Cut-out F 148 mm (±1)

Table 8 - Panel cut-out LDB-46

CDE

Panel cut-out

(see Table 8)

Page 7

1.5 To access the instrument

To open the housing, remove the screws from the back cover. With each screw there is a metal washer and a plasc washer. Once the screws are out, remove the back cover.

The gure below shows the instrument internal structure for a B26 format. It shows the locaon of the 3 slots for oponal output and control modules, the power terminal and the input signal terminal.

Waterght seal Female turret

Power

Slot for opon 3Back cover

To close the instrument, place the back cover, the screws, the metal washer and the plasc washer. The plasc washer is in contact with the back cover. Conrm that the screws are correctly turning inside the internal female screws.

To ensure a correct IP65 protecon ghten the back cover screws with a strength between 30 and 40 Ncm, with the help of a dynamometer screwdriver.

Slot for opon 2

Slot for opon 1

Remote keypad terminal

Input signal terminal

Screw Metal washer Plasc washer

1.6 Modular system

Large format meters are designed with an internal modular architecture. The output and control modules are independent and can be installed by accessing the internal circuits of the instrument, and connecng the module to the connecon jumpers of the selected slot.

Output and control module

Slot 3

Tie base

Cable e

Slot 2

(2)

(1)

Module pins

Risk of electric shock. Removing the back cover will grant access to the internal circuits of the instrument. Operaon must be performed by qualied personnel only.

Each module is provided with a cable e to x the module to the e base. The input signal modules denes the instrument funcon and are exchangeable, switching a temperature meter to an impulse counter only by replacing the input signal module.

See secon 2. for informaon regarding the output and control opons available

To install an output and control module

(1) insert the ‘module pins’ into the

Slot 1

‘connecon jumpers’ in one of the

free slots

(2) place the ‘cable e’ into the ‘e

base’ and embrace the ‘module’ rmly, unl it is xed

Connecon jumpers

Page 8

1.7 Power connecons and protecve earth

1. Unscrew the screws from the back cover and remove the back cover (see secon 1.5).

2. Pass the power cable through the power cable gland

(see secon 1.4).

3. Prepare the power cables so that the earth wire is 20 cm longer than the other cables (see Figure 1).

Phase (+) Neutral (-) Earth

Figure 1 - Longer earth wire

20 cm

4. Connect the earth wire to the internal xed screw ‘PE’

(see Figure 2) located at the inside of the back cover. The instrument internally connects the back cover metallic

‘PE’ internal xed screw Power cable gland

structure with the front metallic structure through an internal green-yellow cable. (doed cable at Figure 3).

5. Connect phase and neutral (in AC power) or posive and negave (in DC power) to the internal power terminal.

6. The connecons label aached to the outside of the instrument has some free space le to write the color or local code for each cable.

7. To comply with security regulaon 61010-1, add to the power line a protecon fuse acng as a disconnecon element, easily accessible to the operator and idened as a protecon device.

Power ‘H’ 500 mA me-lag fuse Power ‘L’ 1000 mA me-lag fuse

Power Terminal

(orange)

Screws

Figure 2 - Locaon of the internal ‘PE’ xed screw and power cable gland

1.8 Control signal connecons

The connecons terminal is located in the instrument (see secon 1.5). All control signals acvate by falling edge, by short-circuit to 0 V. To acvate controls with other signals or acvaon, see secon (see secon 1.14.10).

1.8.1 ‘Normal’ connecons

At normal connecons, the ‘start’, ‘stop’ and ‘reset’ controls

are independent.

Start

Vexc.Stop

fuse

Figure 3 - Power connecons

1.8.2 ‘B’ connecons

The ‘B’ connecons acvates automacally when one of the special ‘B’ funcons (see secon 1.14.6) is congured. The ‘start’ and ‘stop’ controls share the same terminal 3. Signal at ‘high’ level acvates the ‘start’, and at ‘low’ level acvates the ‘stop’. The remaining terminal is dedicated to control the ‘B’ funcon selected.

Start / Stop

‘B’ funcon

Vexc.

Reset

Control Signal

Figure 4 - Connecons for ‘normal’ connecons

0 V

Reset

Control Signal

Figure 5 - Connecons for ‘B’ funcons

0 V

Page 9

1.9 Connecons for remote keypad

1.11 Reset types

The 4 pin terminal located beside the input signal module allows to replicate a remote version of the front keypad. Connect 4 cables for front keys ‘SQ’ (<), ‘UP’ (5) and ‘LE’ (3) and for the

GND

common. Pass these cables through the ‘remote keypad’ cable gland

(see secon 1.4)

1.10 Funcons included

Funcons included Secon

Reading 15 dierent formats 1.14.2

Counng direcon up or down counng 1.14.2

Preset yes 1.14.2

‘On Power Up’ yes

congurable : external, front

Reset

and linked to alarm acva on

control up / down

event counter

Special funcons

total me exceeded me reading ‘hold’ longest and shortest cycle

Controls congurable 1.14.10

simple or double setpoint

‘on alarm’ events

Alarms

acvaon delays deacvaon delays inverted relays

locked alarms

Fast access menu yes, congurable 1.14.14

Front ‘LE’ key yes, congurable 1.14.15

Retenon memory yes, recovers with power 1.13

1.14.3

1.11

1.14.6

1.14.12

The reset funcon can be acvated from three independent and congurable sources:

• Front reset - associated to the front key ‘LE’ (3). This reset can be congured by menu (see secon 1.14.15). The front reset is acvated by levels (pressed / not pressed).

• External reset - connected to pin 5 at the internal signal terminal (see secon 1.8). It acvates by falling edge, by connecon to the 0 Vdc terminal. To congure a dierent acvaon see secon 1.14.10. Congurable trigger level between 0 and 3.9 Vdc, congurable pull-up / pull-down resistors, can be congured to work with other type of signals (NPN, PNP, push-pull, inducve, TTL, ...).

• Alarm reset - the ‘on alarm’ parameter at alarms 1, 2 and 3 (see secon 1.14.12) can be congured to acvate a certain funcon when alarm acvates: stop, load ‘0’, load ‘preset’.

Reading

15.00

0.00

Events counter

Chronometer with ‘reset’ acvaon when reading

reaches

setpoint 1 (‘15.00’ minutos)

15.00 30.00 45.00

Setpoint 1

Minutes

1.12 Messages and errors

Error messages related to the local instrument are shown on display, in ash mode (see Table 10). Examples given are for instrument with 6 digit formats.

Password conguraon locked 1.14.19

Brightness

Table 9 - Funcons included

congurable, 5 levels 1.14.22

Messages and errors on display

‘Err.1’ incorrect password. ‘Err.2’ at ‘oPt.X’ menu entry. Installed module is not

recognized.

‘Err.8’ excitaon voltage overload ‘999999’ + ashing mode. Reading is in overrange. ‘-199999’ + ashing mode. Reading is in underrange.

Table 10 - Messages and error codes for local instrument

Page 10

1.13 Technical specicaons

Digits

number of digits 4 or 6 (see Table 12)

digit 7 segments

view angle 120º color red or green

digit height (see Table 12)

Reading

max., min. (see Table 12)

reading formats (see Table 11) for 6 digits (see Table 13) for 4 digits

display refresh 15 refresh / second memory yes, recovers the last counter

value aer power loss

quartz accuracy ±0.01 % thermal dri 20 ppm / ºC

Reading formats (6 digits)

mm.ss.cc mmmm.ss

Sexagesimal

modes

hh.mm.ss hhhh.mm

dd.hh.mm dddd.hh

ssssss mmmmmm hhhhhh

Decimal

modes

sssss.s mmmmm.m hhhhh.h ssss.ss mmmm.mm hhhh.hh

Table 11 - Reading formats (d=days, h=hours, m=minutes, s=seconds, c=cents of second)

Reading formats (4 digits)

Sexagesimal

mm.ss hh.mm.ss dd.hh

ssss mmmm hhhh

Decimal

modes

sss.s mmm.m hhh.h ss.ss mm.mm hh.hh

Table 13 - Reading formats (d=days, h=hours, m=minutes, s=seconds)

Controls start, stop, reset default control signal free potenal contact congurable for ... NPN, PNP, Namur, pick-up, TTL,

inducve, mechanical, ... max. Vdc on terminals ±30 Vdc excitaon voltage

+18 Vdc, +15 Vdc, +9 Vdc, +5 Vdc max. current 70 mA protecon yes, current limited to 70 mA

control wires secon max. 0.5 mm

Power

power ‘H’ 85 to 265 Vac and 120 to 370 Vdc

isolated (isolaon 2500 Vac) power ‘L’ 11 to 36 Vdc isolated (isolaon 1500 Vdc) consumpon (see Table 12) fuses (see secon 1.7) wire secon max. 2.5 mm

Conguraon front keypad with 3 keys

remote keypad (see secon 3.1)

Output and control opons relay output, analog retransmission,

Modbus RTU, ... (see secon 2)

Mechanical

IP protecon full IP65 housing mounng panel, wall , hanging (see secon

1.19)

connecons cable gland outputs internal plug-in screw terminals housing material

textured iron, black painted

methacrylate front lter weight (see Table 12) front sizes (see secon 1.4) panel cut-out (see secon 1.4)

depth (see secon 1.4) Temperature

operaon from 0 to +50 ºC storage from -20 to +70 ºC warm-up me 15 minutes

Format LDB-24 Format LDB-44 Format LDB-26 Format LDB-46

Number of digits 4 4 6 6

Digit height 60 mm 100 mm 60 mm 100 mm Reading distance 25 meters 50 meters 25 meters 50 meters Slots for output and control opons 2 2 3 3 Maximum reading 9999 999999

Minimum reading -1999 -199999

Consumpon (without opons installed) 3 W 5.25 W 3.5 W 5.5 W Consumpon (with opons installed) 5 W 6.75 W 5.5 W 7 W

Weight 2200 gr. 2500 gr. 3500 gr. 4500 gr.

Table 12 - Technical specicaons associated to format

Page 11

1.14 Conguraon

1.14.1 How to operate the menus

The instrument has two menus accessible to the user :

‘Conguraon menu’ (key ‘SQ’) (<)

‘Fast access’ menu (key ‘UP’) (5)

Conguraon menu

The ‘conguraon menu’ modies the conguraon parameters to adapt the instrument to the applicaon needs. To access the ‘conguraon menu’ press for 1 second the ‘SQ’ (<) key. This access can be blocked by acvang the ‘Password’ (‘PASS’) funcon. While operang the ‘conguraon menu’, the alarm status is ‘hold’ to the status it had before accessing the menu, and the output and control modules remain in ‘error’ state. When leaving the ‘conguraon menu’, the instrument applies a system reset, followed by a brief disconnecon of the alarms and the output and control modules. Funconality is then recovered.

For a detailed explanaon on the ‘conguraon menu’ see the following secons, and for a full view of the ‘conguraon menu’ see secon 1.17.

Key ‘LE’ (3) - press the ‘LE’ (3) key to acvate the congured special funcons associated to this key. Inside the menu, the ‘LE’ (5) acts as an ‘ESCAPE’. It leaves the selected menu level and eventually, by leaving all menu levels, it leaves from the conguraon menu. Then changes are applied and the instrument is back to normal funcon. When entering a numerical value, it selects the acve digit, and the value is then modied by key ‘UP’ (5).

‘Rollback’

Aer 30 seconds without interacon from the operator, the instrument will rollback and leave the ‘conguraon menu’ or the ‘fast access’ menu. All changes will be discarded.

Instruments with 4 and 6 digits

The conguraon menus included in this document show values for a 6 digit instrument. In case of 4 digit instruments, note that maximum reading values should be 9999 instead of 999999 to 9999 and minimum reading values should be

-1999 instead of -199999.

‘Fast access’ menu

The ‘fast access’ menu is an operator congurable menu, providing fast and direct access to the most usual funcons of the instrument with a single key pad stroke. Press key ‘UP’ (5) to access this menu.

See secon 1.14.14 for a list of selectable funcons for the ‘fast access’ menu in this instrument. The ‘Password’ (‘PASS’) funcon does not block access to this menu. Accessing and modifying parameters in the ‘fast access’ menu does not interfere with the normal funconality of the instrument, and it does not generate any system reset when validang the changes.

Operang with the front keypad inside the menus

Key ‘SQ’ (<) - press the ‘SQ’ (<) key for 1 second to

access the ‘conguraon menu’. Inside the menu, the ‘SQ’ (<) key acts as an ‘ENTER’. It enters into the menu opon selected, and when entering a numerical value, it validates the number.

Key ‘UP’ (5) - press the ‘UP’ (5) key to access the ‘fast access’ menu. Inside the menu,the ‘UP’ (5) key sequen-

ally moves through the available parameters and menu entries. When entering a numerical value, it modies the digit selected by increasing its value to 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

Example of operaon inside

(1)

(6)

(3)

(2)

(5)

(3)

(5)

(3)

(5)

(3)

the ‘conguraon menu’.

(4)

1. The (<) key enters into the ‘conguraon menu’.

(4)

2. The (<) key enters into the

(4)

‘InP’ menu.

3. The (5) key moves through the menu opons.

4. The (<) key selects the desired range and returns

(3)

to the ‘InP’ menu.

5. The (3) key leaves the actual menu level and moves to the previous menu level.

6. The (3) key leaves the ‘conguraon menu’.

Changes are applied and

Figure 6 - Example of operaon inside the ‘conguraon menu’

saved at this moment.

Page 12

1.14.2 Inial set-up

Press ‘SQ’ (<) for 1 second to access the ‘conguraon menu’. For a descripon on how to operate inside the menus see secon 1.14.1. For a full vision of the ‘conguraon menu’ structure see secon 1.17.

Main funcon

Reading

format

0.00.00 to 99.59.99

0.00.00 to 99.59.59

0.00.00 to 99.23.59

0.00 to 9999.59

0.00 to 9999.23

0 to 999999

0.0 to 99999.9

0.00 to 9999.99

0 to 999999

0.0 to 99999.9

0.00 to 9999.99

0 to 999999

0.0 to 99999.9

0.00 to 9999.99

To congure the inial set up, enter the ‘Main funcon’ (‘Func’) menu and select the reading format, the counng direcon and the preset value.

At the ‘Reading format’ (‘VIEW’) menu select one of the available formats.

• ‘MM.SS.cc’ - clock format, minutes, seconds and cents.

• ‘hh.MM.SS’ - clock format, hours, minutes and seconds.

• ‘dd.hh.MM’ - clock format, days, hours and minutes.

• ‘MMMM.SS’ - counter of minutes and seconds.

• ‘hhhh.MM’ - counter of hours and minutes.

• ‘dddd.hh’ - counter of days and hours.

• ‘SSSSSS’ - counter of seconds.

• ‘SSSSS.S’ - counter of seconds with one decimal.

• ‘SSSS.SS’ - counter of seconds with two decimals.

• ‘MMMMMM’ - counter of minutes.

• ‘MMMMM.M’ - counter of minutes with one decimal.

• ‘MMMM.MM’ - counter of minutes with two decimal.

• ‘hhhhhh’ - counter of hours.

• ‘hhhhh.h’ - counter of hours with one decimal.

• ‘hhhh.hh’ - counter of hours with two decimal.

Counng direcon

Preset

Down

Preset value

-199999 to 999999

At the ‘Counng direcon’ (‘dIr’) parameter, select ‘uP’ for up counng or ‘doWn’ for down counng.

At the ‘Preset’ (‘PrSt’) parameter, congure the value that will load on display when the ‘reset’ funcon acvates. See secon 1.11 for the dierent types of reset acvaon.

Page 13

1.14.3 ‘On power up’ funcon

The ‘On Power Up’ (‘on.Pu’) funcons allows to dene a series of acons to acvate when the instrument restarts aer a power loss. Funcons available are a delay so the instrument waits a dened me before starng to measure and control, an automac reset of the me counter and the denion of the status of the counter (counng or stopped).

The funcons will apply only aer a restart due to power-loss, they will not apply aer a restart due to changes in conguraon.

Delaying the measure and control funcons gives addional me to elements of the system who are slower, so they can

1.14.4 Flash funcon

The ‘Flash’ (‘FLSh’) congures ashing display when the instrument is stopped (‘StP.F’) and/or when the instrument is counng (‘StP.F’).

start completely before the instrument begins to acquire signal and control the outputs.

While on delay mode, the instrument shows all decimal points lightened and ashing, all alarms are deacvated, and there is no signal acquision or communicaons control. When the delay me is over, the instrument starts its normal funconing.

El full start-up process of the instrument is as follows: waits the me congured at ‘Delay’, resets the me counter (as congured at ‘Reset’), starts counng or stopped, and reads the status of the external controls ‘start’, ‘stop’ and ‘reset’.

1.14.5 External reset conguraon

The external reset can be acvated by edge or by level. Edge acvaon means that the reset will acvate when there is a transion from ‘0’ to ‘1’ or from ‘1’ to ‘0’. Level acvaon means that the reset acvates at level ‘0’ or level ‘1’.

1.14.6 ‘B’ funcon

The operator can select a special funcon (called ‘B’ funcon) to be controlled from external control terminal 3 (see secon 1.8.2). Selecng a ‘B’ funcon modies the standard connecon of the instrument, and acvates the ‘B’ connecons in order to free one of the terminals to control the ‘B’ funcon. Available funcons are listed below. See also secon 1.14.8 :

• funcon B1 (‘Fnb.1’) to control counng direcon

(up or down)

• funcon B2 (‘Fnb.2’) to count events

• funcon B3 (‘Fnb.3’) to view total accumulated working

mes

To invert the logic of the acvaon see secon 1.14.10.

• funcon B4 (‘Fnb.4’) to view exceeded mes

• funcon B5 (‘Fnb.5’) to ‘hold’ the reading

• funcon B6 (‘Fnb.6’) to control maximum an minimum

values (memories of longer and shorter mes)

Page 14

1.14.7 ‘Conguraon’ menu

Conguraon

On power-up

Flash

Delay Seconds

Reset

Status

‘Flash on stop’

‘Flash on start’

The ‘On Power Up’ (‘on.Pu’) menu assigns funcons to be applied when the instrument starts aer a power loss.

For more

informaon see secon 1.14.3.

• at the ‘Delay’ (‘dLAy’) parameter congure the me the

instrument will wait before starng normal funconality. Time between 0 and 200 seconds.

• at the ‘Reset’ (‘rSt’) parameter set to ‘on’ to acvate a

reset when restarng aer a power loss

• at the ‘Status’ (‘StAt’) parameter congure the state of the counter aer power-up. Select ‘Strt’ to count aer power-up or ‘StoP’ to remain stopped aer power-up.

At the ‘Flash’ (‘FLSH’) menu congure:

• Flash on stop’ (‘StP.F’) set to ‘on’ to acvate ashing

reading when the chronometer is stopped.

• ‘Flash on start’ (‘Str.F’) set to ‘on’ to acvate ashing

reading when the chronometer is counng.

by edge

External reset

‘B’ funcon

Next menu entry gives access to the conguraon parameters for the ‘‘B’ funcon’ selected. Following are explanaons for possible menus ‘Fn.b.1’ to ‘Fn.b.6’ (or message ‘Fn.b.n’ if no ‘B funcon’ has been selected).

by level

Funcon assigned to channel ‘B’.

At the ‘External reset’ (‘r.rSt’) select the acvaon of the external reset by edges or by levels.

At the ‘‘B’ funcon’ (‘Fn.b’) select the the funcon associated to channel ‘B’. By default there is no selected ‘B’ funcon. For more informaon see secon

1.14.6.

Page 15

1.14.8 Funcons ‘B1’ to ‘B6’

The ‘B’ funcon is a special funcon disabled by default. To acvate one of the ‘B’ funcons, see secon 1.14.6. When acvang a ‘B’ funcon, the ‘B’ connecon also acvates (see secon 1.8.2). The ‘B’ funcon control signal (terminal 3) acvates by short-circuit to 0 V. For other acvaon signals see secon 1.14.10 and take into account that the ‘start’ signal is now ‘start-stop’, and the ‘stop’ signal is now the ‘channel ‘B’’ control signal.

• with the ‘B.1 control up / down’ (‘Fn.b.1’) funcon the up or down counng is controlled through the channel ‘B’ control signal.

• the ‘B.2 events’ (‘Fn.b.2’) funcon enables an internal events counter (0 to 999999) visible on display acvang the channel ‘B’ control signal. Events that add ‘+1’ to the internal event counter are :

-at ‘on alarm 1’ (‘o.AL1’) select ‘on’ to add ‘+1’ each me alarm 1 acvates.

- at ‘on alarm 2’ (‘o.AL2’) select ‘on’ to add ‘+1’ each me alarm 2 acvates.

- at ‘on alarm 3’ (‘o.AL3’) select ‘on’ to add ‘+1’ each me alarm 3 acvates.

- at ‘on reset’ (‘o.rSt’) select ‘on’ to add ‘+1’ each me the reset funcon acvates.

Applicaon - a producon process repeats every 15 minutes. Each me the chronometer reaches ‘15.00’ minutes, it acvates alarm 1 to inform the operator that the material can be packed. Once the material is packed, the operator manually unlocks the alarms and they cycle restarts. At the end of the day, the operator can acvate the ‘B’ funcon and see the total number of cycles done during the day.

• the ‘B.3 total’ (‘Fn.b.3’) funcon enables an internal me counter visible on display acvang the channel ‘B’ control signal. To reset the internal counter visualize the value and acvate the reset (front or external). The internal me counter can be congured to count the total me the instrument has been powered, or counng,

or stopped.

Applicaon - a manufacturing process repeats every 120 minutes. Any change in the producon process, model or series implies a stop in the manufacturing process. The operator can acvate the ‘B’ funcon to visualize the total accumulated me the system has been stopped.

• the ‘B.4 exceeded’ (‘Fn.b.4’) funcon enables an

internal exceeded me counter visible on display acvang the channel ‘B’ control signal. To reset the internal counter visualize the value and acvate the reset (front or external). The reset leaves the exceeded counter at ‘0’ and stopped. The exceeded me counter can be congured to count the total elapsed from a congured event.

- at the ‘Start’ (‘Strt’) parameter select ‘o.AL1’ to start the exceeded counter when alarm 1 acvates. Select ‘o.AL2’ or ‘o.AL3’ to start counng with the acvaon of alarm 2

or alarm 3.

- at the ‘Format’ (‘ForM’) parameter congure the visual izaon format for the exceeded me counter. Select ‘ch.A’ to visualize with the same format as the main instrument

Applicaon - a long duraon manufacturing process repeats every 72 hours connuously without stop. At the end of each cycle the operator must rell the consumed material in less than 60 minutes. When a cycle is nished the instrument acvates and locks alarm 1, starng the exceeded counter ‘B’. The alarm acvates a signal to the operator and at the same me acvates the visualizaon of the exceeded me counter. The operator now can see the elapsed since the alarm acvated.

• the ‘B.5 hold’ (‘Fn.b.5’) funcon allows to hold the

reading. The chronometer connues counng on the background.

• the ‘B.6 max / min’ (‘Fn.b.6’) funcon allows to access

the memory of maximum and minimum me. Each me a reset is applied, the instrument compares the reading value with the maximum and minimum value and updates the memory values if needed. Values can be displayed with front (or remote) key UP (5) (see secon

1.14.14). Acvate channel ‘B’ to reset the maximum and minimum values.

- at the ‘Format’ (‘ForM’) parameter congure the visual izaon format for the internal me counter. Select ‘ch.A’ to visualize with the same format as the main instrument.

- at the ‘Count’ (‘cnt’) parameter select ‘ALWS’ to count the me the instrument has been powered, select ‘Strt’ to count the me the instrument has been counng or select ‘StoP’ to count the me the instrument has been

stopped.

Applicaon - a producon process executes a reset signal each me a cycle ends. At the end of the day the operator can access the maximum and minimum memory values, related to the longer and shorter producon cycles of the day.

Page 16

1.14.9 ‘B’ funcon conguraon menu

Funcon B.1

Control up / down

Funcon B.2

events

Funcon B.3

total

‘on alarm 1’

‘on alarm 2’

‘on alarm 3’

on ‘reset’

Format

Only the conguraon menu for the ‘B’ funcon selected is visible. See secon 1.14.8 for more informaon on each funcon.

• special funcon ‘B1’ has no associated conguraon.

• at the special funcon ‘B2’ select ‘on’ at the events that add ‘+1’ to the event counter.

• at the special funcon ‘B3’ congure at the ‘Format’ (‘ForM’) parameter the visualizaon format for the internal totalizer. At the ‘Count’ (‘cnt’) parameter select ‘ALWS’ to count connuously, ‘Strt’ to totalize only counng mes and ‘StoP’ to totalize the me the chronometer has been stopped.

Funcon B.4

exceeded

Funcon B.5

‘hold’

Count

Format

‘Start’

• at the special funcon ‘B4’ congure at the ‘Format’ (‘ForM’) parameter the visualizaon format for the internal totalizer. At the ‘Start’ (‘Strt’) parameter select the event that triggers the start of the internal totalizer.

• the special funcon ‘B5’ has no associated conguraon.

Funcon B.6

‘Max / min’

• the special funcon ‘B6’ has no associated conguraon.

Page 17

1.14.10 External controls conguraon

The instrument allows to congure the ‘start’, ‘stop’ and ‘reset’ external controls to accept dierent types of signals and dierent acvaon signals

The default conguraon is acvaon by free potenal contacts, with acvaon by falling edge (direct connecon to terminal 0 Vdc). The following parameters allow to cong ure the external controls to work with other type of signals:

• ‘Pulls for ‘Start’ and ‘Stop’’ (‘PuL.S’) - select ‘P.uP’ to acvate pull-up resistors (needed for NPN sensors). Select ‘P.dn’ to acvate pull-down resistors (needed for PNP sensors). Select ‘no’ to deacvate pulls. Selecng a pull resistors congures the trigger level to 2,5 Vdc.

• ‘Acvaon for ‘Start’ and ‘Stop’’ (‘Act.S’) - select (‘on_h’) to acvate the ‘Start’ and ‘Stop’ controls by rising edge. Select (‘on_0’) to acvate by falling edge. (With ‘B’ connecons acve, the aected signals are the ‘start / stop’ and the ‘B’ funcon signals)

• ‘Pulls for reset’ (‘PuL.r’) - select ‘P.uP’ to acvate pull-up resistors (needed for NPN sensors). Select ‘P.dn’ to acvate pull-down resistors (needed for NPN sensors). Select ‘no’ to deacvate pulls. The trigger lievel for the reset is xed to 2,5 Vdc.

• ‘Trigger level’ (‘trIG’) - select the signal voltage level

at which the instrument will consider that the signal has reached the acvaon level. Selectable from 0 to 31 levels, where each level is approximately 0.128 Vdc. Trigger level is the same for channels ‘start’ and ‘stop’. Reset channel has a xed trigger to 2,5 Vdc. The three leds to the le of the

value reect the state (‘0’ or ‘1’) of control channels ‘Start’, ‘Stop’ and ‘Reset’.

• ‘Excitaon voltage’ (‘V.EXc’) - power provided by the

instrument to power-up the sensors (if needed) used to control the signals ‘start’, ‘stop’ and / or ‘reset’, or to be used as an acve signal (‘1’) for special connecons. Select the for the excitaon voltage at 5 Vdc, 9 Vdc, 15 Vdc or 18 Vdc. Select ‘no’ to disable the excitaon voltage.

• ‘Excitaon voltage’ (‘V.EXc’) - power provided by the

• ‘Acvaon for ‘Reset’’ (‘Act.r’) - select (‘on_h’) to acvate the ‘Reset’ control by rising edge. Select (‘on_0’) to acvate by falling edge. Addionally, reset signal can be congured to acvate by levels instead of edges (see secon 1.14.5). In case of acvaon by levels, value ‘on_h’ acvates the reset on high signal value, and value ‘on_0’ acvates reset on low signal. Front reset acvates always by state (pressed acvates the reset).

Page 18

1.14.11 External control conguraon menu

Controls

Pulls for

‘Start’ and ‘Stop’

Activation for

‘Start’ and ‘Stop’

Pulls for reset

Acvaon for

‘reset’

No pull

Pull up

Pull down

by rising edge

by falling edge

No pull

Pull up

Pull down

by rising edge

by falling edge

The ‘Controls’ (‘SnSr’) menu contains all the conguraon parameters related to the detecon of the control signals ‘start’, ‘stop’ and ‘reset’. For more informaon see secon

1.14.10.

• at the ‘Pulls for ‘Start’ and ‘Stop’’ (‘PuL.S’) parameter

select pull-up, pull-down or without pull resistors, for the ‘start’ and ‘stop’ control signals.

• at the ‘Acvaon for ‘Start’ and ‘Stop’’ (‘PuL.S’) parameter

select acvaon by rising edge or falling edge for the ‘start’ and ‘stop’ control signals.

• at the ‘Pulls for reset’ (‘PuL.r’) parameter select pull-up,

pull-down or without pull resistors, for the ‘reset’ external control signal

• at the ‘Acvaon for reset’ (‘Act.r’) parameter select

acvaon by rising edge or falling edge, for the ‘reset’ external control signal.

Trigger level

Excitaon

voltage

Anrrebound

Trigger level (from 0 to 31). Each level is approx. 0.128 Vdc.

Anrrebound lter (0 to 1000 mSec.)

• at the ‘Trigger level’ (‘trIG’) parameter empirically select

the trigger level from 0 to 31. The 3 leds to the le inform about the actual state ‘0’ or ‘1’ for the external controls ‘start’, ‘stop’ and ‘reset’.

• at the ‘Excitaon voltage’ (‘V.Exc’) parameter select the

voltage value for the excitaon voltage, in case it is needed to power the sensors for the ‘start’, ‘stop’ and ‘reset’ external

signals.

• at the ‘Anrrebound’ (‘rbnd’) parameter congure the

me in milliseconds for the anrrebound lter.

Page 19

1.14.12 Alarms

The instrument manages 3 independent internal alarms, each one controlling the acvaon of an oponal relay, transistor or control SSR output.

Oponal modules (see secon 2) are installed at the free slots inside the instrument (see secon 1.4). LDB-24 and LDB-44 formats have 2 free slots for output and control modules, while LDB-26 and LDB-46 formats have 3 free slots for output and control modules.

The instrument has 3 front leds that reect the state of the 3 internal alarms. These leds are only for local help during installaon, as they are not appropriate for long distance reading.

Each alarm controls the acvaon of the relay, transistor or control SSR installed on its associated slot,

and the front led.

• Alarms in ‘repeat’ mode

With ‘repeat’ (‘rEPt’) mode the alarm acvates each me that the chronometer reaches a mulple of the setpoint. Alarm remains acve during the me indicated at parameter ‘deacvaon delay’ (‘dEL.1’). Other parameters on the ‘Alarm’ menu have no eect in this mode. This mode is not funconal in viewing modes with tenths of second or cents of second.

Applicaon: chronometer in ‘mm.ss’ mode with a ’repeat’ alarm and setpoint 1 at ‘15.00’. Alarm acvates ar ‘15.00’, ‘30.00’, ‘45.00’, etc.

• Congurable parameters

Reading

• Alarms in ‘normal’ mode

In ‘normal’ mode (‘norM‘) the alarm acvates when the reading reached the setpoint value.

Each alarm has several parameters for conguraon, starng with the usual etpoint, hysteresis and maximum (alarm acve when reading is higher than setpoint) or minimum (alarm acve when reading is lower than minimum) alarm types

(see Figure 7)

Each alarm can congure independent acvaon and deacvaon delays. These delays aect the alarm as a whole, and the delay will aect the front led and the associated relay.

Acvate the ‘inverted relay’ funcon to invert the acvaon logic of the associated relay.

Acvate the ‘locked alarms’ funcon will force the operator to interact with the instrument when an alarm has been acvated. Once acvated, the alarm will remain locked at acve state, even is the reading returns to a value below setpoint, unl the operator manually unlocks the alarms pressing the front key ‘LE’ (or the remote key ‘LE’, see secon 3.1).

• ‘On alarm’ funcons

The ‘on alarm’ funcons allow to associate a funcon to the alarm acvaon event. Funcons available are reset to ‘0’, load the preset value, stop counng, or do nothing. Funcons reset and preset create counng cycles (from 0, then to setpoint, then to 0 again, ...). The number of cycles performed can be accessed through the fast access menu

(see secon 1.14.14)

• Alarm ash

setpoint

histéresis

o

acvaon delay

o

Figure 7 - Example for alarm with 2 setpoint

deacvaon delay

Alarm as maximum, no hysteresis, no delays

Alarm as maximum, hysteresis and delays

Alarm as minimum, no hysteresis, no delays

The ‘Alarm ash’ (‘AL.FL’)

set to ‘on’ acvate the ash on

display when the alarm acvates To stop the ashing mode press any of the front (or remote) keys pr change the state of any of the external controls ‘start’, ‘stop’ or ‘reset’.

Page 20

1.14.13 Alarms conguraon menu

Alarms

Alarm 1 Mode

Disabled

Normal

Repeat

To congure the alarm, access the alarm menu (‘ALr1’, ‘ALr2’ or ‘ALr3’) and congure the following parameters :

•

at the

‘Mode’ (‘ModE’) select ‘oFF’ to disable the alarm, select ‘normal’ (‘norM‘) to enable the normal mode, or select ‘repeat’ (‘rEPt’) to enable the repeat mode. The ‘repeat’ mode only needs the ‘deacvaon delay’ (‘dEL.1’) parameter and other parameters have no eect on this mode. The ‘repeat‘ mode is not funconal if cents or tenths of seconds are visualized.

Type of alarm

Setpoint

Acvaon

delay

Deacvaon

delay

Inverted relay

‘Locked alarm’

‘On alarm’

Connue

To ‘0’

To preset

Stop

• at the ‘Type of alarm’ (‘TypE’) parameter select ‘MAX’ for maximum alarm (acvates when reading is higher than setpoint), or ‘MIn’ for minimum alarm (acvates when reading is lower than setpoint).

• at the ‘Setpoint’ (‘SEt’) parameter congure the alarm acvaon point. Parameter value is accessible through ‘fast access’

(see secon 1.14.14)

• at the ‘Hysteresis’ (‘hySt’) parameter select the hysteresis value. Hysteresis applies to the alarm deacvaon. Alarm deacvates once the reading is beyond the setpoint plus the hysteresis value. Hysteresis prevents relay switching in case of signal uctuaons close to the setpoint value.

• at the ‘Acvaon delay’ (‘dEL.0’) parameter congure the delay to apply before the alarm is acvated. Delay starts to count once the setpoint is reached. Value from

0.0 to 99.9 seconds.

• at the ‘Deacvaon delay’ (‘dEL.1’) parameter congure the delay to apply before the alarm is deacvated. Delay starts to count once the setpoint is reached plus the hysteresis value. Value from 0.0 to 99.9 seconds.

‘Alarm ash’

• at the ‘Inverted relay’ (‘r.Inv’) parameter select ‘on’ to invert the acvaon logic of the relay. Relay is inacve when alarm is acve, and relay is acve when alarm is inacve.

• at the ‘Locked alarm’ (‘A.Lck’) parameter select ‘on’ to block the automac alarm deacvaon. Alarm deacvaon must be performed manually, by pressing the ‘LE’ front buon

(see secon 1.14.15)

• at the ‘On alarm’ (‘on.AL’) parameter congure the acon to acvate when the alarm acvates. Select ‘cont’ to do nothing and connue counng, select ‘to_0’ to load a ‘0’ on display, or select ‘to_p’ to load the preset value on display. Selecng ‘to_0’ or ‘to_p’ congures ‘dEL.1’ to 1 second. Select ‘stop’ to stop counng.

• at the ‘Alarm ash’ (‘AL.FL’) select ‘on’ to acvate the ash in display when the alarm is acve.

Page 21

1.14.14 Fast access

The ‘fast access’ is an operator congurable menu. The operator can access this menu with a single press of the front key ‘UP’ (5). The congured menu entries will be accessible. Eligible parameters to be accessed by this menu are:

• access to the alarm setpoints through the ‘UP’ (5) key allows to read and modify the values.

• access to the maximum, minimum and events alarms through the ‘UP’ (5) key allows to read and reset the values. To reset the memory values: visualize the value on display, press the ‘UP’ (5) key, when the ‘rSt’ message appears, press ‘SQ’ (<) . The instrument will return to the memory visualizaon. Press the ‘LE’ (3) key to exit his menu.

• access to the preset value to read and modify the value.

1.14.15 Key ‘LE’

The ‘LE’ (3) key at the front of the instrument can be congured to acvate several funcons. Only one funcon can be assigned to the ‘LE’ (3) key. Eligible funcons are reset of the counter and the alarm unlock funcon (see

secon 1.14.12).

The ‘fast access’ menu is not aected by the password funcon. This means that the conguraon menu can be password blocked, while some congured funcons or parameters can sll be accessible to the operator through the ‘fast access’ menu.

• Super fast access

If only a single funcon is selected for the ‘fast access’ menu, pressing the the ‘UP’ (5) key will shortly display the funcon name and then automacally jump to the funcon value.

Example: the chronometer acvates alarm 1 when reaching value ‘15.00’ hours. Automacally the instrument resets to ‘0’ and acvates the relay to inform the me has been reached. To prevent the automac alarm deacvaon when loading the ‘0’, the ‘locked alarms’ funcon is acvated. Once at ‘0’, the chronometer is congured to connue counng. When the operator arrives, it applies the roune funcons on the system, and it frees the locked alarms by pressing the front (or external) key ‘LE’, resets the instrument to ‘0’ again, and starts a new cycle.

Page 22

1.14.16 ‘Fast access’ conguraon menu

Tools

Key UP

(‘Fast access’)

Setpoint 1

Setpoint 2

Setpoint 3

Memory of

maximum

Memory of

minimum

Memory of

events

Preset value

At the ‘Key UP (‘fast access’)’ (‘K.uP’) menu congure which funcons and parameters will be accessible through the ‘fast access’ menu. Select ‘on’ to acvate each funcon. For more informaon see secon

1.14.14

• the ‘Setpoint 1’ (‘ALr1’) funcon allows to visualize

and modify the alarm 1 setpoint through the ‘fast access’ menu.

• the ‘Setpoint 2’ (‘ALr2’) funcon allows to visualize

and modify the alarm 2 setpoint through the ‘fast access’ menu.

• the ‘Setpoint 3’ (‘ALr3’) funcon allows to visualize

and modify the alarm 3 setpoint through the ‘fast access’ menu.

• the ‘Memory of maximum’ (‘MAX’) or ‘Memory of minimum’ (‘MIn’) funcons allow to visualize the maximum or minimum reading value stored in memory.

• the ‘Memory of events’ (‘cYcL’) funcon allows to visualize the number of cycles value stored in memory. The cycles value increases ‘+1’ with each reset or preset associated to the alarm acvaon or resets associated to ‘overrange’ / ‘underrange’.

• the ‘Preset value’ (‘PrSt’) funcon allows to visualize and modify the preset value through the ‘fast access’ menu.

1.14.17 ‘Key LE’ conguraon menu

No funcon

Key LE

Reset

Reset + Start

Alarm unlock

1.14.18 Le zeros conguraon menu

With le zeros.

Le zeros

Without le zeros.

The ‘LE’ (3) key at the front of the instrument can be congured to acvate several funcons. For more informaon see secon

1.14.15

• the ‘No funcon’ (‘nonE’) value assigns no funcon.

• the ‘Reset’ (‘rSt’) value assigns the reset funcon.

• the ‘Reset + start’ (‘r.Str’) value assigns the reset and

start funcon with the same key.

• the ‘Alarm unlock’ (‘A.Lck’) value assigns the manual

alarm unlocking, when the ‘Locked alarms’ (‘A.Lck’) funcon is acve

(see secon 1.14.12)

The ‘Le zeros’ (‘L.ZEr’) parameter controls the le zeros on or o.

Page 23

1.14.19 ‘Password’ funcon

Password

1.14.20 Default factory conguraon

Factory

conguraon

The password funcon blocks access to the conguraon menu. The ‘fast access’ menu is not aected by the password funcon. This means that the conguraon menu can be password blocked, while some congured funcons or parameters (setpoint values, preset value, ...) can sll be accessible to the operator through the ‘fast access’ menu.

To acve the ‘Password’ funcon select ‘on’ and introduce the 6 digits code. The code will be requested when trying to access the ‘conguraon menu’ (front key ‘SQ’ (<)).

At the ‘FActory conguraon’ (‘FAct’) menu select ‘yes’ to acvate the default factory conguraon. See secon 1.18 for a list of default parameters.

1.14.21 Firmware version

The ‘Version’ (‘VEr’) menu informs about the rmware

Version

version installed on the instrument.

1.14.22 Brightness conguraon

Minimum

Brightness

Standard

Maximum

At the ‘Brightness’ (‘LIGh’) menu select the intensity level for the display . Use this funcon to adapt the brightness to match other instruments in the vicinity or to the darkness or clarity of your environment.

1.14.23 Access to the opons conguraon menu

The output and control opons are oponal modules that can be installed at the instrument. Formats LDB-24 and LDB44 have 2 free slots for output and control opons, while formats LDB-26 and LDB-46 have 3 free slots (see secon

1.4).

Several of these oponal modules have their own conguraon menu embedded.

The ‘OPt.1’, ‘ OPt.2’ and ‘OPt.3’ menu entries give access to the conguraon menu of the opon installed.

Opon 1

Opon

Opon 3

Access to the oponal module installed at slot 1

Access to the oponal module installed at slot 2

Access to the oponal module installed at slot 3

See secon 2 for a list of available output and control modules

Page 24

1.15 Example for applicaon 1

1.16 Example for applicaon 2

An industrial process with electrolyc bath needs to remove the pieces and submerge new ones every 20 minutes. The process of removing and adding new pieces needs 15 seconds. During these 15 seconds the bath system must be powered o. Power should reacvate aer the 15 seconds, when the new elements are inside the bath-

The objecve is to congure the instrument to acvate a relay output every 20 minutes, and this output should be acve for 15 seconds and then disabled.

Addionally, the instrument should start to count automacally at power up, although it is necessary to wait 1 minute before count starts to give me to the rst power acvaon of the whole system. The counter must not be restarted at power up, but it must connue counng from the last value it had before the power o.

Conguraon should be as shown below:

• Reading

‘Func’ / ‘View’ ‘hh.mm.ss’

• Counng direcon ‘Func’ / ‘dIr’ ‘uP’

• Preset value ‘Func’ / ‘PrSt’ ‘0.00’

• Start up delay ‘conF’ / ‘on_Pu’ / ‘dLAY’ 60 seconds

• Inial reset disabled ‘conF’ / ‘on_Pu’ / ‘rSt’ ‘oFF’

• Start counng ‘conF’ / ‘on_Pu’ / ‘StAt’ start (‘Strt’)

• Alarm mode

‘ALr’ / ‘ALr1’ / ‘Mode’ repeat (‘rEPt’)

• Alarm every 20 minutes ‘ALr’ / ‘ALr1’ / ‘SEt’ 20.00

• Deacvaon delay ‘ALr’ / ‘ALr1’ / ‘dEL.1’ 15.0 seconds

• When alarm acvates ‘ALr’ / ‘ALr1’ / ‘on_AL’ connue (‘cont’)

An industrial process has an oven to dry dierent elements. The dry me for each element is variable and the operator an easy way to needs to enter the me each me. All other parameters must be not accessible to the operator. During the process, the operator needs two signals. The rst one controls a buzzer which must be on for 15 seconds and start 5 minutes before the end of the dry me. The second signal must acvate when the me is over and will be acve unl the operator resets manually the signal.

The objecve is to congure a down counter, starng at preset value, and this preset value will be directly accessible to be modied through the key UP (‘5’) front or remote. The conguraon (except the preset value) will be locked with a password. Alarm 1 will acvate during 15 seconds when there are 5 minutes to end the process. Alarm 2 will acvate when the process nishes and will remain acve unl the operator forces a manual

reset.

• Reading

‘Func’ / ‘View’ ‘hh.mm.ss’

• Counng direcon ‘Func’ / ‘dIr’ down (‘doWn’)

• Alarm 1 : alarm mode ‘ALr’ / ‘ALr1’ / ‘Mode’ normal (‘norM’)

• Alarma 1 : alarm type ‘ALr’ / ‘ALr1’ / ‘tYPE’ minimum (‘MIn’)

• Alarma 1 : acvaon point ‘ALr’ / ‘ALr1’ / ‘SEt’ ‘00.05.00’

• Alarma 1 : deacvaon delay ‘ALr’ / ‘ALr1’ / ‘dEL.1’ 15.0 seconds

• Alarma 1 : when alarm acvates, connue ‘ALr’ / ‘ALr1’ / ‘on_AL’ connue (‘cont’)

• Alarma 2 : alarm mode ‘ALr’ / ‘ALr1’ / ‘Mode’ normal (‘norM’)

• Alarma 2 : alarm type ‘ALr’ / ‘ALr1’ / ‘tYPE’ minimum (‘MIn’)

• Alarma 2 : acvaon point ‘ALr’ / ‘ALr1’ / ‘SEt’ ‘00.00.00’

• Alarma 1 : when alarm acvates, stop ‘ALr’ / ‘ALr1’ / ‘on_AL’ stop (‘stop’)

• Assign the preset to the ‘UP’ keyl ‘TooL’ / ‘K.uP’ / ‘PrSt’ ‘on’

• Lock the conguraon with a password ‘TooL’ / ‘PASS’ / ‘on’ assign the code

Alarm 1

o

Chronometer with alarm 1 acvaon every 20

minutes

start up

60 seconds

00.00

15 seconds

20.00 40.00 60.00

Minutes

Reading

‘06.30.00’

‘00.05.00’ ‘00.00.00’

0.00.00

o

Example with preset selected to 6 hours, 30 minutes

Status of alarm 1

Status of alarm 2

05.25.00 05.30.00

15 seconds

me

Page 25

1.17 Full conguraon menu

Press ‘SQ’ (<) for 1 second to access the ‘Conguraon menu’.

Main funcon

Reading

format

‘B’ funcon

0.00.00 to 99.59.99

0.00.00 to 99.59.59

0.00.00 to 99.23.59

0.00 to 9999.59

0.00 to 9999.23

Counng direcon

Preset

0 to 999999

0.0 to 99999.9

0.00 to 9999.99

0 to 999999

0.0 to 99999.9

0.00 to 9999.99

0 to 999999

0.0 to 99999.9

0.00 to 9999.99

Down

Preset value

-199999 to 999999

Funcon B.1

Control up / down

Funcon B.2

events

‘on alarm 1’

‘on alarm 2’

‘on alarm 3’

on ‘reset’

Conguraon

On power-up

Flash

External reset

Delay Seconds

Reset

Status

‘Flash on stop’

‘Flash on start’

by edge

by level

Funcon B.3

total

Funcon B.4

exceeded

Format

Count

Format

Page 26

Funcon B.5

‘hold’

‘Start’

Alarms

Alarm 1

Mode

Disabled

Normal

Repeat

Controls

Funcon B.6

‘Max / min’

Pulls for

‘Start’ and ‘Stop’

Activation for

‘Start’ and ‘Stop’

Pulls for reset

Acvaon for

‘reset’

No pull

Pull Up

Pull Down

by rising edge

by falling edge

No pull

Pull Up

Pull Down

by rising edge

by falling edge

Type of alarm

Setpoint

Acvaon

delay

Deacvaon

delay

Inverted relay

‘Locked alarm’

‘On alarm’

Connue

To ‘0’

To preset

Stop

Trigger level

Excitaon

voltage

Anrrebound

Trigger level (from 0 to 31). Each level is approx. 0.128 Vdc.

Anrrebound lter (0 to 1000 mSec.)

‘Alarm ash’

Page 27

Tools

Key UP

(‘Fast access’)

Setpoint 1

Access to the oponal module installed at slot 1

Opon 1

Key LE

Le Zeros

Password

Factory

conguraon

Version

Brightness

Setpoint 2

Setpoint 3

Memory of

maximum

Memory of

minimum

Memory of

events

Preset value

No funcon

Reset

Reset + Start

Alarm unlock

With le zeros.

Without le zeros.

Minimum

Standard

Maximum

Access to the oponal module installed at slot 2

Opon 2

Access to the oponal module installed at slot 3

Opon 3

1.18 Factory conguraon

Funcon mode View format hh.MM.SS Counng direcon up Preset 00.00.00 Conguraon ‘On power-up’ Delay 0 seconds Reset o State stopped (‘StoP’)

Flash

‘Flash on stop’ o ‘Flash on start’ o External reset acvates by edges (‘EdGE’) Funcon on channel ‘B’ no

Controls

Pulls for ‘start’ and ‘stop’ pull-up (‘P.uP’) Acvaon for ‘start’ and ‘stop’ by falling edge (‘on_0’) Pulls for reset pull-up (‘P.uP’) Acvaon for reset by falling edge (‘on_0’) Trigger level 2.56 Vdc (level 20) Excitaon voltage 15 Vdc Anrrebound lter disabled (0 mSeconds) Alarms 1,2 and 3 Mode o (disabled) Type of alarm of maximum

Setpoint 0

Acvaon delay 0.0 seconds Deacvaon delay 0.0 seconds Inverted relay o ‘Locked alarms’ o ‘On alarm’ connue ‘Alarm ash’ o Tools (‘TooL’) ‘Fast access’ (key UP) o Setpoint 1 o Setpoint 2 o Setpoint 3 o Memory of maximum o Memory of minimum o Cycles o Preset o Ley ‘LE’ reset funcon Le zeros o Password o

Brightness 3

Page 28

1.19 Mounng

The instrument xaons are designed to allow panel mount, wall mount, or hanging mount. For each type of mounng,

• Panel mount. Apply the cut-out to the panel as seen on secon 1.4. Remove the side xaons. Introduce the instrument into the panel cut-out. Mount the side xaons as shown (see Figure 8). Slightly loosen the xaon screw of one side and press the instrument against the panel. Tighten the xaon screw so it presses the panel and maintains the xaon. Repeat with the opposite side xaon. For IP65 protecon at the panel juncon, see the IPB accessories at secon 3.

Fixaon screws

Side xaons

see the posion of the xaons at the images below.

• Wall mount. Mount the side xaons against the wall, as shown (see Figure 10). Each xaon has 2 holes with 4,5 mm diameter and a separaon between hole centers of 30 mm. Once the side xaons are secured against the wall, place the instrument and press the xaon screws slightly. Tilt the instrument to the desired viewing angle and rmly screw the xaon screws.

Diameter 4,5 mm 30 mm between

hole centers

Fixaon screws

Side xaons

Figure 8 - Panel mount

• Hanging mount. Mount the side xaons as shown (see

Figure 9). Each xaon has 2 holes with 4,5 mm diameter and a separaon between hole centers of 30 mm.

Instrument can be hanged using cable, threaded rod, ....

Diameter 4,5 mm 30 mm between

hole centers

Fixaon screws

Side xaons

Figure 10 - Wall mount

Figure 9 - Hanging mount

Page 29

1.20 Installaon precauons

1.22 CE declaraon of conformity

Risk of electrical shock. Instrument terminals can be connected to dangerous voltage.

Instrument conforms to CE rules and regulaons.

This instrument has been designed and veried conforming to the 61010-1 CE security regulaon, for industrial applicaons. Installaon of this instrument must be performed by qualied personnel only. This manual contains the appropriate nformaon for the installaon. Using the instrument in ways not specied by the manufacturer may lead to a reducon of the specied protecon level. Disconnect the instrument from power before starng any maintenance and / or installaon acon. The instrument does not have a general switch and will start operaon as soon as power is connected. The instrument does not have protecon fuse, the fuse must be added during installaon. An appropriate venlaon of the instrument must be assured. Do not expose the instrument to excess of humidity. Maintain clean by using a humid rag and do NOT use abrasive products such as alcohols, solvents, etc. General recommendaons for electrical installaons apply, and for proper funconality we recommend : if possible, install the instrument far from electrical noise or magnec eld generators such as power relays, electrical motors, speed variators, ... If possible, do not install along the same conduits power cables (power, motor controllers, electrovalves, ...) together with signal and/or control cables. Before proceeding to the power connecon, verify that the voltage level available matches the power levels indicated in the label on the instrument. In case of re, disconnect the instrument from the power line, re alarm according to local rules, disconnect the air condioning, aack re with carbonic snow, never with water.

1.21 Warranty

Supplier Omega Engineering

Products LDB-CR

The manufacturer declares that the instruments indicated comply with the direcves and rules indicated below.

Electromagnec compability direcve 2014/30/EU Low voltage direcve 2014/65/EU Direcve ROHS 2011/65/EU Direcve WEEE 2012/19/EU

Security rules EN-61010-1

Instrument Fixed, Permanently connected Polluon degree 1 and 2 (without condensaon) Isolaon Basic + Protecve union Category CAT-II

Electromagnec compability rules EN-61326-1

EM environment

Immunity levels

EN-61000-4-2

EN-61000-4-3

EN-61000-4-4

EN-61000-4-5

EN-61000-4-6

EN-61000-4-8 30 A/m at 50/60 Hz

EN-61000-4-11 0 % 1 cycle 40 % 10 cycles 70 % 25 cycles 0 % 250 cycles

Emission levels

CISPR 11 Instrument Class A, Group 1

Industrial

By contact By air

On AC power lines On DC power lines

On signal lines

Between AC power lines Between AC power lines and earth Between DC power lines Between DC power lines and earth Between signal lines and earth

±4 KV

±8 KV

: ±2 KV

: ±1 KV

±1 KV

±2 KV Criteria

±2 KV

±1 KV

Criteria Criteria

Criteria

Criteria Criteria Criteria

Criteria

Criteria Criteria Criteria

Criteria

Criteria Criteria Criteria Criteria

Criteria

B B

B B B

B B B B B

A A B B

Please see the last page for Omega’s warrently disclaimer

According to direcve 2012/19/EU, electronic equipment must be recycled in a selecve and controlled way at the end of its useful life.

Page 30

2. Output and control modules

2.1 Module R1

The R1 module provides 1 relay output to install in large format industrial meters from LDB series. Formats LDB-26 and LDB-46 accept up to 3 relays, and formats LDB-24 and LDB-44 accept up to 2 relays. Conguraon is performed from the front keypad of the instrument, by seng the alarm parameters. Check the alarm menu parameters at the instrument user’s manual for full informaon. Modules R1 can be provided factory installed into a LDB series, or standalone for delayed installaon. No soldering or special conguraon is required. See secon 1.6 on how to install output and control modules.

‘com’ (‘A’)

2.2 Module T1

The T1 module provides 1 transistor output to install in large format industrial meters from LDB series. Formats LDB-26 and LDB-46 accept up to 3 transistor outputs, and formats LDB-24 and LDB-44 accept up to 2 transistor outputs. Conguraon is performed from the front keypad of the instrument, by seng the alarm parameters. Check the alarm menu parameters at the instrument user’s manual for full informaon. Modules T1 can be provided factory installed into a LDB series, or standalone for delayed installaon. No soldering or special conguraon is required. See secon 1.6 on how to install output and control modules.

‘B’

‘NC’ (‘C’) ‘NO’ (‘B’)

Figure 11 - Module ‘R1’ and internal schemac

Type of relay 3 contacts (Com, NO, NC)

Max. current 3 A (resisve load)

Voltage 250 Vac connuous

Isolaon 3500 Ve

Terminal plug-in screw clamp, pitch 5.08 mm

Installaon allowed at

slot 1, slot 2, slot 3

NOpen

NClosedCommon

CBA

Module R1

‘A’

Figure 13 - Module ‘T1’ and internal schemac

Type of output transistor

Max. voltage 35 Vdc

Max. current 50 mA

Isolaon 3500 Ve, optoisolated

Terminal plug-in screw clamp, pitch 5.08 mm

Installaon allowed at

slot 1, slot 2, slot 3

CBA

Module T1

Not connected

A Common B NO (Normally Open) C NC (Normally Closed)

Figure 12 - Connecons for ‘R1’ relay output module

A Emier B Collector C Not connected

Figure 14 - Connecons for ‘T1’ transistor output module

Page 31

2.3 Module SSR

2.4 Module AO

The SSR module provides 1 output for SSR relay control, to install in large format industrial meters from LDB series. Formats LDB-26 and LDB-46 accept up to 3 SSR control outputs, and formats LDB-24 and LDB-44 accept up to 2 SSR control outputs. Conguraon is performed from the front keypad of the instrument, by seng the alarm parameters. Check the alarm menu parameters at the instrument user’s manual for full informaon. Modules SSR can be provided factory installed into a LDB series, or standalone for delayed installaon. No soldering or special conguraon is required. See secon 1.6 on how to install output and control modules.

+15 Vdc

‘C’

Relé SSR

The AO module provides 1 analog output, congurable for 4/20 mA or 0/10 Vdc signal, to install in large format industrial meters. Formats LDB-26 and LDB-46 accept up to 3 analog outputs, and formats LDB-24 and LDB-44 accept up to 2 analog outputs. Output signal is fully scalable, both with posive and negave slopes, and is proporonal to the reading. The mA output can be congured for acve loops (the instrument provides the power to the mA loop) or passive loops (the loop power is external to the instrument). Conguraon is performed from the front keypad of the instrument, by accessing the menu entries ‘Opt.1’, ‘Opt.2’ or ‘Opt.3’, according to the slot where the module is installed. AO modules can be provided factory installed into a LDB series, or standalone for delayed installaon. No soldering or special conguraon is required. See secon 1.6 on how to install output and control modules.

‘B’

‘A’

Figure 15 - Module ‘SSR’ and internal schemac

Type of output for SSR relay control Output voltage +15 Vdc Max. current 45 mA Isolaon 1000 Vdc Terminal plug-in screw clamp, pitch 5.08 mm

Installaon allowed at

Not connected

slot 1, slot 2, slot 3

Collector

+15 Vdc

CBA

Figure 17 - Module ‘AO’

Signal output 4/20mA, 0/10Vdc (acve and passive)

Accuracy 0.1% FS

Isolaon 1000 Vdc

Terminal plug-in screw clamp, pitch 5.08 mm

Installaon allowed at

Jumpers MV for mA or Vdc output selecon

slot 1, slot 2, slot 3

mA or Vdc

CBA

Module AO

CommonV exc.

Module SSR

A Not connected B Collector (-) C +15 Vdc (+)

Figure 16 - Connecons for ‘SSR’ control module

A Excitaon voltage B Signal in mA or Vdc

C Common

Jumper M Jumper closed for mA output

Jumper V Jumper closed for Vdc output

Figure 18 - Connecons for ‘AO’ analog output module

Page 32

2.5 Module RTU

The RTU module provides an isolated Modbus RTU communicaons port, to install in large format industrial

meters from LDB series.

2.6 Module S4

The S4 module provides an isolated RS485 ASCII communicaons port, to install in large format industrial

meters from LDB series.

The RTU module implements funcon ‘4’ (‘Read Input Registers’) of the Modbus RTU protocol, to access the

instrument registers (reading value, alarm status, memory of maximum and minimum, ...).

Conguraon is performed from the front keypad of the instrument, by accessing the menu entries ‘Opt.1’, ‘Opt.2’ or ‘Opt.3’, according to the slot where the module is installed.

Modules RTU can be provided factory installed into a LDB series, or standalone for delayed installaon. No soldering or special conguraon is required. See secon 1.6 on how to install output and control modules.

Figure 19 - Communicaons module ‘RTU’

The S4 module implements a MASTER / SLAVE protocol, with up to 31 addressable slaves. In SLAVE mode allows access to reading values, alarm status, memory of maximum and minimum, ...

Conguraon is performed from the front keypad of the instrument, by accessing the menu entries ‘Opt.1’, ‘Opt.2’ or ‘Opt.3’, according to the slot where the module is installed.

Modules S4 can be provided factory installed into a LDB series, or standalone for delayed installaon. No soldering or special conguraon is required. See secon 1.6 on how to install output and control modules.

Figure 21 - Communicaons module ‘S4’

Protocol Modbus RTU

Bus RS-485, up to 57.6 Kbps

Isolaon 1000 Vdc

Terminal plug-in screw clamp, pitch 5.08 mm

Installaon allowed at

slot 1, slot 2, slot 3

A wire

GNDB wire

GAB

Module RTU

A Bus signal A

B Bus signal B

G GND

Protocol ASCII

Bus RS-485, up to 57.6 Kbps

Isolaon 1000 Vdc

Terminal plug-in screw clamp, pitch 5.08 mm

Installaon allowed at

slot 1, slot 2, slot 3

A wire

GNDB wire

GAB

Module S4

A Bus signal A

B Bus signal B

G GND

Figure 20 - Connecons for Modbus ‘RTU’ communicaons module

Figure 22 - Connecons for RS-485 ‘S4’ communicaons module

Page 33

2.7 Module S2

The S2 module provides an isolated RS232 ASCII communicaons port, to install in large format industrial

meters from LDB series.

The S2 module implements a MASTER / SLAVE protocol, with up to 31 addressable slaves, with ‘daisy-chain’ connecon. In SLAVE mode allows access to reading values, alarm status, memory of maximum and minimum, ...

Conguraon is performed from the front keypad of the instrument, by accessing the menu entries ‘Opt.1’, ‘Opt.2’ or ‘Opt.3’, according to the slot where the module is installed.

Modules S2 can be provided factory installed into a LDB series, or standalone for delayed installaon. No soldering or special conguraon is required. See secon 1.6 on how to install output and control modules.

Figure 23 - Communicaons module Module ‘S2’

Protocol ASCII

Bus RS-232, up to 57.6 Kbps

Isolaon 1000 Vdc

Terminal plug-in screw clamp, pitch 5.08 mm

Installaon allowed at

slot 1, slot 2, slot 3

Tx1

Rx1Rx2

Tx2

CBA

Module S2

GND

‘Daisy chain’ Tx data transmission

‘Daisy chain’ Rx data recepon

Tx data transmission

Rx data recepon

E GND

Figure 24 - Connecons for RS-232 ‘S2’ communicaons module

Page 34

Page 35

Opons and Accessories

Index

1.1 Read this rst . . . . . . . . . . . . . . . . . . 2

1.2 Modular architecture . . . . . . . . . . . . . . 2

1.3 Installaon and start-up . . . . . . . . . . . . 2

1.4 To access the instrument . . . . . . . . . . . . 3

1.5 Modular system . . . . . . . . . . . . . . . . . 3

1. Opons R1, T1 and SSR . . . . . . . . . . . . . . 4

1.1 Module R1 . . . . . . . . . . . . . . . . . . . . 4

1.2 Module T1 . . . . . . . . . . . . . . . . . . . . 4

1.3 Module SSR . . . . . . . . . . . . . . . . . . . 5

2. Opon AO . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Connecon examples. . . . . . . . . . . . . . 6

2.2 Conguraon menu. . . . . . . . . . . . . . . 7

2.3 Error codes . . . . . . . . . . . . . . . . . . . 7

3. Opon

3.1 Registers accessible through Modbus RTU . . 8

3.2 Conguraon menu. . . . . . . . . . . . . . . 9

RTU . . . . . . . . . . . . . . . . . . . . . . . 8

1.1 Read this rst

All modules menoned in this document are compable with large format meters from LDB series has 4 formats, and each format dier in the number of digits, the digit height and the number of output and control opons they can accept.

This document assumes the following :

3.3 Excepon codes . . . . . . . . . . . . . . . . . 9

3.4 Compable versions . . . . . . . . . . . . . . 9

3.5 Descripon and example of registers . . . . .10

4. Opon

4.1 Accessible registers . . . . . . . . . . . . . . .11

4.2 Conguraon menu. . . . . . . . . . . . . . .12

4.3 Compable versions . . . . . . . . . . . . . .12

4.4 Frame types . . . . . . . . . . . . . . . . . . .13

4.5 Frame structure . . . . . . . . . . . . . . . . .13

4.6 Error codes . . . . . . . . . . . . . . . . . . .13

4.8 Frame examples. . . . . . . . . . . . . . . . .14

4.8.1 Frames ‘RD’ (36) and ‘ANS’ (37) . . . . . .14

4.8.2 Frames ‘ERR’ (38) . . . . . . . . . . . . . .14

4.7.1 Frames ‘PING’ (32) and ‘PONG’ (33) . . . .14

4.7 CRC calculaon . . . . . . . . . . . . . . . . .14

5. Opon

S4 . . . . . . . . . . . . . . . . . . . . . . . .11

S2 . . . . . . . . . . . . . . . . . . . . . . . .15

1.2 Modular architecture

Large displays from the LDB series are designed following a modular architecture that allows the operator to install any of the output and control modules menoned in this document. Each module is supplied with 1 cable e, 1 square self adhesive e base and 1 female connector.

Format Digits Digit height Opons

LDB-24 4 60 mm 2

LDB-44 4 100 mm 2

LDB-26 6 60 mm 3

LDB-46 6 100 mm 3

•

inside the programming menus, when a 6 digits value is shown,

it is assumed that only 4 digits apply to formats LDB-24 and LDB-44

• when this document explains that a maximum of 3 output

and control modules are installable, it is assumed that the maximum is 2 modules for formats LDB-24 and LDB-44

The output and control modules menoned in this document, are covered by the warranty of the instrument where they are installed. Check the user’s manual of the instrument for more informaon related to warranty.

The user’s manual of the instrument where the module is installed, has important informaon related to installaon

that applies also to the output and control modules menoned in this document. Check the user’s manu-

al of the instrument for more informaon related to installaon precauons.

The output and control modules menoned in this document

are covered by the ‘CE declaraon of conformity’ of the instrument where they are installed. Check the user’s manual of the instrument for more informaon

related to the CE declaraon of conformity.

1.3 Installaon and start-up

To install an oponal output and control module into a large display:

1. remove the rear cover of the instrument (see secon 1.4)

2. install the module at one of the free slots (see secon 1.5)

3. place the squared e base at the free slot selected. Locaon to place the e base is clearly indicated on the PCB

(see secon 1.5).

4. pass the cable e through the e base (see secon 1.5)

5. place the output and control module at the slot connecon jumpers (see secon 1.5)

6. use the cable e to rmly x the module (see secon 1.5)

7. if needed, congure the appropriate jumpers at the output and control module

8. pass the connecon wires through the housing cable gland

9. connect the signal wires to the terminals of the output and control module

10. place and close the rear cover of the instrument (see

secon 1.4)

11. congure the parameters at the ‘Conguraon menu’.

• modules R1, T1 and SSR are congured from the alarms

menu of the instrument

• other modules are congured from from menu entries

‘Opt.1’, ‘Opt.2’ or ‘Opt.3’, depending on the slot where the module has been installed.

Page 36

1.4 To access the instrument

To open the housing, remove the screws from the back cover. With each screw there is a metal washer and a plasc washer. Once the screws are out, remove the back cover.

The gure below shows the instrument internal structure for a LDB-26 format. It shows the locaon of the 3 slots for oponal output and control modules, the power terminal and the input signal terminal.

Waterght seal Female turret

Power

Slot for opon 3Back cover

To ensure a correct IP65 protecon ghten the back cover screws with a strength between 30 and 40 Ncm, with the help of a dynamometer screwdriver.

Slot for opon 2

Slot for opon 1

Remote keypad terminal

Input signal terminal

Screw Metal washer Plasc washer

1.5 Modular system

Output and control module

Slot 3

Tie base

Cable e

Slot 2

(2)

(1)

Module pins

Risk of electric shock. Removing the back cover will grant access to the internal circuits of the instrument. Operaon must be performed by qualied personnel only.

the module to the connecon jumpers of the selected slot. Each module is provided with a cable e to x the module to the e base. A cable gland to install at the back cover is also provided, in order to enable an output for the connecon wires.

To install an output and control module (1) insert the ‘module pins’ into the ‘con-

necon jumpers’ in one of the free slots

(2) place the ‘cable e’ into the ‘e base’

and embrace the ‘module’ rmly, unl it is xed

Slot 1

(3) an addional white cable e is provided

to x as indicated below. Only needed in case of vibraons or heavy transportaon.

Connecon jumpers

Page 37

1. Opons R1, T1 and SSR

The R1, T1 and SSR modules provide 1 digital ‘on/o’ output. The output is congured from the instrument alarms menu (‘ALr.1’, ‘ALr.2’ o ‘ALr.3’). The menu allows to congure the setpoint, hysteresis,

independent acvaon and deacvaon delays, and a second setpoint to create windowed alarms. The R1, T1 and SSR output modules are isolated between them and between all other circuits of the instrument.

1.1 Module R1 1.2 Module T1

‘com’ (‘A’)

‘NC’ (‘C’) ‘NO’ (‘B’)

Figure 1 - Detail for the ‘R1’ module and internal schemac

Figure 3 - Detail for the ‘T1’ module and internal schemac

‘B’

‘A’

Opon R1

Type of output relay

Type of relay 3 contacts (Com, NO, NC)

Max. current 3 A (resisve load)

Voltage 250 Vac connuous (max. 150 Vac if switching power network with Overvoltage category III)

Isolaon 3500 Ve

Type of terminal plug-in screw clamp pitch 5.08 mm

Installaon allowed at slot 1, slot 2, slot 3

NOpen

NClosedCommon

CBA

Opon T1

Type of output transistor

Max voltage 35 Vdc

Max. current 50 mA

Isolaon 3500 Ve, optoisolated

Type of terminal plug-in screw clamp pitch 5.08 mm

Installaon allowed at slot 1, slot 2, slot 3

Not connected

CBA

Module R1

A Common

B NO (Normally Open)

C NC (Normally Closed)

Figure 2 - Connecons for the ‘R1’ relay output module

Module

A Emier

B Collector

C Not connected

Figure 4 - Connecons for the ‘T1’ transistor output module

Page 38

1.3 Module SSR

+15 Vdc

‘C’

Relé SSR

‘B’

‘A’

Figure 5 - Detail for the ‘SSR’ module and internal schemac

Opon SSR

Type of output to control SSR relay

Output voltage +15 Vdc

Max. current 45 mA

Isolaon 1000 Vdc

Type of terminal plug-in screw clamp pitch 5.08 mm

Installaon allowed at slot 1, slot 2, slot 3

Collector

+15 Vdc

Opt.2

A B C

Opt.3

A B C

Not connected

Opt.1

A B C

CBA

Module SSR

A Not connected

B Collector (-)

Signal

Power

C +15 Vdc (+)

Figure 6 - Connecons for the SSR control output module

Page 39

2. Opon AO

The AO modules provide 1 analog output, congurable for 4/20 mA or 0/10 Vdc signal. The analog output is congured from the opons menu entry (‘Opt.1’, ‘Opt.2’ or ‘Opt.3’) of the instrument.

Opon AO

Type of output analog output Signal output 4/20 mA acve

4/20 mA passive 0/10 Vdc

Max. signal 22 mA, 10.5 Vdc Min. signal 0 mA, -50 mVdc

Scaling proporonal to the reading posive or negave slopes

Vexc (terminal A) +13.8 Vdc ± 0.4 Vdc (max. 25 mA) protecon against shortcircuit

Load impedances ≤350 Ohm (for 4/20 mA acve)

≤800 Ohm (for 4/20 mA passive)

(for 24 Vdc external Vexc) (maximum voltage 27 Vdc between ‘B’ and ‘C’)

≥10 KOhm (en 0/10 Vdc) Accuracy (at 25 ºC) <0.1 % FS Thermal stability 60 ppm/ºC in mA

50 ppm/ºC in Vdc Step response <75 mSeconds + step response of the

(0% to 99% of the signal)

reading

Isolaon 1000 Vdc Warm up 15 minutes Type of terminal plug-in screw clamp

pitch 5.08 mm Factory conguraon ‘Mode mA’

‘Scaling 0/9999 = 4/20 mA’ ‘On error ‘to_h’

Installaon allowed at slot 1, slot 2, slot 3

The output signal is proporonal to the reading, and it is scalable both in posive or negave slopes. The mA output can be congured for acve loops (the instrument provides the power to the mA loop) or passive loops (the loop power is external to the instrument.

The AO analog output modules are isolated between them and between all other circuits of the instrument.

Figure 7 - Detail for the ‘AO’ module

mA or Vdc

CommonV exc.

Jumpers MV to select mA or Vdc

output

CBA

Module AO

A Excitaon voltage

B Signal in mA or Vdc

C Common

Jumper M Jumper closed for mA output

Jumper V Jumper closed for Vdc output

Figure 8 - Connecons for ‘AO’ analog output module

2.1 Connecon examples

V exc.

CBA

Module AO

Jumper M Jumper closed

Jumper V Jumper open

Figure 9 - Connecons for acve 4/20 mA. The current loop is internally powered from the ‘AO’ module

+ mA

- mA

CBA

Module AO

Jumper M Jumper closed

Jumper V Jumper open

Figure 10 - Connecons for passive 4/20 mA. The current loop is externally powered.

Page 40

2.2 Conguraon menu

At the ‘Mode’ (‘ModE’) menu congure the type of output ‘4/20 mA’ (‘mA’) or ‘0/10 Vdc‘ (‘Vdc’). Posion for jumpers ‘V’ and ‘M’ must be according to the range selected.

At the ‘Scaling’ (‘ScAL’) menu enter the values that dene the two points of the slope:

• the lower point, dened by the ‘Low Display’ (‘d.Lo’)

and ‘Low Output’ (‘Ao.Lo’)

• the upper point, dened by the ‘High Display’ (‘d.hI’)

and ‘High Output’ (‘Ao.hI’)

Analog output values are shown with ‘XX.XX’ format. acceptable values are ‘0.00’ to ‘10.00’ Vdc for voltage, and ‘0.00’ to ‘20.00’ mA for current.

Reading

100.0

Example

associated to a reding of -50.0 to 100.0

- 4/20 mA, analog output

‘d.hI’=‘100.0’

‘Ao.hI’=‘20.00’

Mode

Scaling

‘On error’

Factory

conguraon

Mode 4/20 mA

Mode 0/10 Vdc

Display low

Output low

Display high

Output high

in case of error, ‘to_h’ to drive output to high level, ‘to_L’ to drive output to low level

select ‘yES’ to reload the default factory conguraon

-50.0

4 mA

‘Ao.Lo’=‘4.00’

‘d.Lo’=‘-50.0’

signal Vdc

CBA

Module AO

20 mA

common

Version

Analog output

2.3 Error codes

‘Er.34’ output signal congured to value lower than 0 Vdc or 0 mA

‘Er.35’ output signal congured to a value higher than 10 Vdc or

20 mA

‘Er.36’ congured slope points are not acceptable, such as : ‘d.Hi’=’d.Lo’

‘Ao.Hi’=’Ao.Lo’

(‘Ao.Hi’-’Ao.Lo’)>(’d.Hi’-’d.Lo’)

Jumper M Jumper open

Jumper V Jumper closed

Figure 11 - Connecons for 0/10 Vdc.

Page 41

3. Opon

RTU

The RTU modules provide 1 port for communicaons in Modbus RTU protocol. Use funcon ‘4’ (‘Read Input Registers’) of the Modbus RTU protocol, to access the instrument registers (reading value, alarm status, memory of maximum and minimum, setpoint values, ...).

Opon RTU

Type of output Modbus RTU communicaon

Funcon implemented 4 (Read_Input_Registers)

Addresses 01 to 247

Excepon codes see secon 3.3

Registers* see secon 3.1

*available registers can vary for dierent instruments

Bus RS-485

Speed 57.6 Kbps to 600 bps

Data format 8e1 (standard), 8o1, 8n2

Bus terminator not included

Isolaon 1000 Vdc

Temperature operaon from 0 to 50 ºC storage from -20 to +70 ºC

The communicaon parameters are congured from the opons menu entry (‘Opt.1’, ‘Opt.2’ or ‘Opt.3’) of the instrument.

The RTU modules are isolated between them and between all other circuits of the instrument.

Figure 12 - Detail for the ‘RTU’ module

A wire

GNDB wire

GAB

Module RTU

Factory conguraon ‘Address 1’ ‘Speed 19.2 Kbps’ ‘Format 8e1’ ‘Decimal point Auto’

Installaon allowed at slot 1, slot 2, slot 3

A Bus signal A

B Bus signal B

G GND

Figure 13 - Connecons for Modbus ‘RTU’ module

3.1 Registers accessible through Modbus RTU

(LDB-26 y LDB-46)

0 DISPLAY1_L 1 DISPLAY1_H 16 bits 2 DECIMALES1 Decimals on display 16 bits 0 to 6 3 MAXMEM_L

4 MAXMEM_H 16 bits 5 MINMEM_L 6 MINMEM_H 16 bits 7 SETPOINT1_L 8 SETPOINT1_H 16 bits 9 SETPOINT2_L

10 SETPOINT2_H 16 bits 11 SETPOINT3_L 12 SETPOINT3_H 16 bits

13 STATUS

14 a 16 Reserved Reserved 16 x 3 bits Not accessible

Display value

Memory of maximum

Memory of minimum

Setpoint 1 value

Setpoint 2 value

Setpoint 3 value

Alarm status Instrument status

16 bits

same as display

every 30 seconds

every 2 seconds

same as display

999999 to -199999 9999 to -1999

999999 to -199999 9999 to -1999*

bit 0...7 alarm status bit 8...16 instrument status

4 Digit Models

(LDB-24 y LDB-44)

0 to 4

Not accessible

Table 1 - Registers accessible through MODBUS-RTU. Registers codied as binary numbers. Negave values codied in two’s complement. Available registers can vary for dierent instruments. Register 11 is not accessible for instruments with formats LDB-24 and LDB-44 ( slot 3 is not available).

Page 42

3.2 Conguraon menu

AddressConguraon

Speed (kbps)

1 to 247

57.6 Kbps ... ...

to 600 bps

At the ‘Conguraon’ (‘rtu’) menu, congure the ‘Address’ (‘Addr’) parameter with the address value between ‘1’ and ‘247’, at the ‘Speed’ (‘bAud’) parameter select the bus speed (in Kbps) and at the ‘Format’ (‘bItS’) parameters select the

data format.

Inside the ‘Tools’ (‘TooL’) menu, special tools and funcons

are grouped.

• the ‘Decimal point’ (‘dP’) menu is provided for

compability with ancient hardware that does not support decimal point retransmission. By default, select ‘Automac’ (‘Auto’). If your instrument does nos transmit the decimal point posion, select ‘Manual’ (‘MAnL’) and x the posion of the decimal point manually.

• at the ‘Factory reset’ (‘FAct’) menu, select ‘yes’ to load the

default factory conguraon for the instrument.

the ‘Version’ (‘VEr’) menu informs of the current rmware version installed in the module.

3.3 Excepon codes

Tools

Format

Factory

conguraon

Version

AutomacDecimal point

Manual

8 bits, even parity, 1 stop

8 bits, odd parity, 1 stop

8 bits, no parity, 2 stop

Move with LE

The Modbus RTU protocol denes the following scenarios when a ‘Master’ is sending a frame to a ‘Slave’:

• the ‘Slave’ device receives the frame correctly and replies with the requested data

• the ‘Slave’ devices detects a CRC error, parity error, or other. and discards the frame without generang a reply frame. The ‘Master’ will detect a ‘TIMEOUT’ condion due to the absence of reply.

• the ‘Slave’ device receives the frame correctly, but replies with an ‘EXCEPTION_CODE’ as it can not process the funcon or register requested.

The ‘EXCEPTION_CODES’ congured in the RTU module are :

Excep-

on code

0 ILLEGAL_FUNCTION

Table 2 - Excepon codes

Name Descripon

Requested funcon is not supported

ILLEGAL_DATA_AD-

DRESS

Requested register is not supported

3.4 Compable versions

Formats LDB-26, LDB-46

--- --- LDB24-P, LDB44-P 41.57

LDB26-P, LDB46-P 50.00 --- ---

--- --- LDB24-T, LDB44-T 44.05

--- --- LDB24-R, LDB44-R 45.05 LDB26-C1, LDB46-C1 27.08 LDB24-C1, LDB44-C1 47.07 LDB26-CR, LDB46-CR 28.02 LDB24-C1, LDB44-C1 48.05

Table 3 - Firmware versions compable with the indicated registers

Firmware

version

Formats LDB-24, LDB-44

Firmware

version

Page 43

3.5 Descripon and example of registers

Registers R0 and R1 (DISPLAY1_L y DISPLAY1_H)

Contains the display value of the instrument, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied at register R2.

Example R0=FBF1 (hex) and R1=0009 (hex)

Reading value = 654321

Contains the number of decimals of the display, codied in a single register of 16 bits. Possible values are from

0 to 6.

Example R2=0002 (hex)

Number of decimals = 2 = 6543.21

Contains the memory of maximum reading of the instrument, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register R2.

Example - same example as in R0 and R1 but accessing to R3 and R4.

Registers R5 and R6 (MINMEM_L and MINMEM_H)

Contains the memory of minimum reading of the instrument, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register R2.

Example - same example as in R0 and R1 but accessing to R5 and R6.

Registers R9 and R10 (SETPOINT2_L and SETPOINT2_H)

Contains the setpoint value of alarm 2, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register

R2.

Example - same example as in R0 and R1 but accessing to R9 and R10.

Registers R11 and R12 (SETPOINT3_L and SETPOINT3_H)

Contains the setpoint value of alarm 3, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register

R2.

Example - same example as in R0 and R1 but accessing to R11 and R12.

Informaon bit-by-bit, for the alarm status (on / o) and instrument status. See below for a descripon.

Bit 0 Alarm 1 status (0 = inacve, 1 = acve) Bit 1 Alarm 2 status (0 = inacve, 1 = acve) Bit 2 Alarm 3 status (0 = inacve, 1 = acve) Bit

3 to 7

Reserved Bit 8 Display overrange Bit 9 Display underrange Bit 10 Lost communicaon with the main processor Bit 11 to 15 Reserved

Registers R14, R15 and R16

Reserved

Registers R7 and R8 (SETPOINT1_L and SETPOINT1_H)

Contains the setpoint value of alarm 1, codied in two registers of 16 bits each. Possible values are from 999999 to -199999. Decimal point posion is codied on register

R2.

Example - same example as in R0 and R1 but accessing to R7 and R8.

Page 44

4. Opon

The S4 modules provide 1 port for communicaons RS485 ASCII protocol. Protocol with ‘master’ - ‘slave’ architecture, addressable up to 31 modules. Frames codied in representable ASCII characters (codes 32 to 255), which are visible using ‘hyperterminal’ or similar programs. Instrument

Opon S4

Type of output RS-485 ASCII communicaon Bus RS-485 Speed 57.6 Kbps to 600 bps Data format 8n1 (standard), 8o1, 8n2, 8e1 Bus terminator not included

Protocol ASCII

Architecture ‘master - slave’ Addresses 01 to 31 ‘Broadcast’ address 128 Registers* see secon 4.1

*available registers can vary for dierent instruments

Isolaon 1000 Vdc Temperature operaon from 0 to 50 ºC storage from -20 to +70 ºC Factory conguraon ‘Mode Slave’ ‘Address 1’ ‘Speed 19.2 Kbps’ ‘Format 8n1’ ‘Decimal point Auto’ Conguraon ‘Master’ ‘Desnaon address 31’ ‘Frequency 0.5 sec.’ Tools ‘Decimal point Auto’ ‘Legacy O’ ‘Answer delay 0 mSec.’ Installaon allowed at ‘Opt.1’, ‘Opt.2’, ‘Opt.3’

registers are accessible through the RS-485 ASCII port (reading value, alarm status, memory of maximum and minimum, setpoint values, ...). The communicaon parameters are congured from the opons menu entry (‘Opt.1’, ‘Opt.2’ or ‘Opt.3’) of the instrument. The S4 modules are isolated between them and between all other circuits of the instrument.

Figure 14 - Detail for the ‘S4’ module

A wire

B wire

GAB

Module S4

A Bus signal A

B Bus signal B

G GND

Figure 15 - Connecons for ‘S4’ module

GND

4.1 Accessible registers

Display values (DISPLAY1, MAXMEM, MINMEM, AL1, AL2, AL3) are codied with a minimum of 6 digits (le zeros are added if necessary), polarity and decimal point.

0 DISPLAY1 Display1 value 1 MAXMEM Memory of maximum 2 MINMEM Memory of minimum 3 AL1 Setpoint 1 value

4 AL2 Setpoint 2 value 5 AL3 Setpoint 3 value 6 STATUS Alarm status

Table 4 - Accessible registers for ASCII protocol.

Contains the display value of the instrument, in ASCII code, including polarity (posive / negave) and decimal point.

Example 1 - R0=’+’ ‘0’ ’6’ ‘5’ ‘4’ ‘3’ ‘.’ ‘2’ Display value = 6543.2 Example 2 - R0=’-’ ‘0’ ‘0’ ‘0’ ‘4’ ‘.’ ‘5’ ‘2’ Display value = -4.52

Contains the value for memory of maximum, in ASCII code,

including polarity (posive / negave) and decimal point.

Contains the value for memory of minimum, in ASCII code, including polarity (posive / negave) and decimal point.

Contains the value for alarm 1 setpoint, in ASCII code, including polarity (posive / negave) and decimal point.

Contains the value for alarm 2 setpoint, in ASCII code, including polarity (posive / negave) and decimal point.

Contains the value for alarm 3 setpoint, in ASCII code, including polarity (posive / negave) and decimal point.

Contains the alarm status (on/o).

Bit 0 Alarm 1 status (0 = inacve, 1 = acve) Bit 1 Alarm 2 status (0 = inacve, 1 = acve) Bit 2 Alarm 3 status (0 = inacve, 1 = acve) Bit 3 to 15 Reserved

Page 45

4.2 Conguraon menu

Conguraon

ASCII

Conguraon

‘Master’

Mode

Address

Speed (kbps)

Format

Desnaon

address

Frequency

1 a 31

1 to 31

128 for ‘broadcast’

Mode ‘Slave’

Mode ‘Master’

0.1 seconds

0.5 seconds

1 seconds 5 seconds

15 seconds

60 seconds

At the ‘Conguraon ASCII’ (‘AScI’) menu, congure the ‘Mode’ (‘ModE’) parameter to select the ‘slave’ or the ‘master’ mode, at the ‘Address’ (‘Addr’) parameter congure the local port address between ‘1’ and ‘31’, at the ‘Speed’ (‘bAud’) parameter select the bus speed (in Kbps) and at the ‘Format’ (‘bItS’) parameter select the data

format.

When working as ‘master’, the instrument connuously transmits the display value data frame. The local module address is ‘0’. Congure at menu ‘Conguraon Master’ (‘cnF.M’) the ‘Desnaon address’ (‘d.Add’) parameter from ‘1’ to ‘31’ or use value ‘128’ for a broadcast message. At parameter ‘Frequency’ (‘FrEq’) select the how oen the frame with the reading value will be transmied.

Special tools are grouped inside the ‘Tools’ (‘TooL’) menu.

• the ‘Decimal point’ (‘dP’) menu is provided for

• the ‘Legacy mode’ (‘LEG’) parameter is provided to

maintain compability with instruments with older communicaon protocols. Select ‘on’ to acvate this

mode.

• the ‘Answer delay’ (‘AnS.d’) parameter applies only

to ‘Slave’ mode. The local module delays the answer frame. Congure for applicaons where the ‘Master’ needs addional me to switch between ‘transmit’ and ‘receive’ modes. Enter a numeric value between ‘0’ and ‘1000’ mSeconds.

• at the ‘Factory reset’ (‘FAct’) menu, select ‘yes’ to load

the default factory conguraon for the instrument.

the ‘Version’ (‘VEr’) menu informs of the current rmware version installed in the module.

Tools

Decimal point

Legacy mode

Answer delay

Factory

conguraon

Version

Automac

Manual

use key ‘LE’ to select

delay for answers, from 0 to 1000 mSec.

4.3 Compable versions

Formats LDB-26, LDB-46

Instruments with access to registers 0, 1, 2, 6

LDB26-P, LDB46-P

LDB26-C1, LDB46-C1

LDB26-CR, LDB46-CR

Table 5 - Firmware versions compable with the indicated registers

Version

rmware

50.00

27.08

28.02

Formats LDB-24, LDB-44

LDB24-P, LDB44-P

---

LDB24-T, LDB44-T

LDB24-R, LDB44-R

LDB24-C1, LDB44-C1

LDB24-CR, LDB44-CR

Version

rmware

41.57

44.05

45.05

47.07

48.05

---

Page 46

4.4 Frame types

The ASCII protocol denes the following frames:

• Frame ‘read’ (‘RD’). Id code 36. Request data frame. The

requested register is indicated into the ‘REG’ byte (‘Header’ secon).

• Frame ‘answer’ (‘ANS’). Id code 37. Response frame to a

request data frame. The requested register is indicated into the ‘REG’ byte’ (‘Header’ secon). Data of the request ed register is indicated into data bytes ‘D0’ to ‘Dn’ (‘Data’

secon).

• Frame ‘error’ (‘ERR’). Id code 38. Response frame to a

request data frame. Indicates that an error has occurred. Error code is codied into the ‘REG’ byte (‘Header’ secon).

• Frame ‘ping’ (‘PING’). Id code 32. Used to conrm the

existence of the remote instrument.

• Frame ‘pong’ (‘PONG’). Id code 33. Response to a ‘ping’

frame. It conrms the existence of the remote instrument.

4.5 Frame structure

Header Data Trail

STX ID RSV FROM TO REG RSV LONG D0 D1 ... Dn CRC ETX

2 x 32 x x x 32 n+1 [data] x 3

0 1 2 3 4 5 6 7 8 9 ... n+7 n+8 n+9

Protocol frames have a structure made of ‘Header’, ‘Data’ and ‘Trail’.

Secon ‘Header’

Contains the start byte (‘STX’), the frame idener (‘ID’), the origin address (‘FROM’) and the desnaon address (‘TO’), the register id (‘REG’) and the length (‘LONG’) of the ‘Data’ secon.

Secon ‘Data’

Contains data for the requested register (‘REG’).

Secon ‘Trail’

Contains the ‘CRC’ code and the end of frame byte (‘ETX’).

‘Real value’ and ‘Frame value’

To use representable ASCII values, the real values are codied before being sent into the frame. The following denions apply :

• ‘real value’ is the value of the eld without codicaon

• ‘frame value’ is the value of the eld, codied

Field Descripon Size Posion Real value Frame value

STX Start of frame 1 byte 0 does not apply 2

ID Frame type 1 byte 1 (see secon 4.4) real_value

RSV Reserved 1 byte 2 0 32

FROM Origin address 1 byte 3 0 (‘Master’) / 1 to 31 (‘Slave’) 32 + real_value TO Desnaon address 1 byte 4 0 (‘Master’) / 1 to 31 (‘Slave’)

128 (‘broadcast’)

REG Register idencaon 1 byte 5 (see secon 4.1) 32 + real_value

RSV Reserved 1 byte 6 0 32

LONG Length of ‘Data’ secon 1 byte 7 n (between 0 and 32) 32 + real_value D0 … Dn Data n bytes 8 to n+7 number 0 to 9

decimal point polarity (+/-)

CRC CRC calculaon 1 byte n+8 does not apply (see secon 4.7)

ETX End of frame 1 byte n+9 does not apply 3

Table 6 - Descripon of the bytes for the ASCII frame

32 + real_value

ASCII code of the number (48 to 57) ASCII code of decimal point (46) ASCII code of ‘+’ (43) ASCII code of ‘-’ (45)

4.6 Error codes

Frames ‘ERR’ contain within the ‘REG’ eld, the error code. Available error codes are : error 1 unknown register

error 2 display overrange error 3 display underrange

error 4 CRC error error 5 internal error

Page 47

4.8 Frame examples

4.8.1 Frames ‘RD’ (36) and ‘ANS’ (37)

Example - ‘Master’ (address ‘0’) requests the value of register ‘0’ (display value) to the ‘Slave’ at address ‘28’ (‘RD’ frame) and the ‘Slave’ replies to the ‘Master’ with a reply frame (‘ANS’

frame) containing the requested data (765.43).

*Instruments with 4 digits also send reading values formaed with 6 digits : value -321.5 is transmied as -00321.5

Header Trail

STX ID RSV FROM TO REG RSV LONG CRC ETX

2 36 32 32 60 32 32 32 58 3

Start RD --- 0 28 0 --- 0 CRC Stop

Header Data Trail

STX ID RSV FROM TO REG RSV LONG D0 D1 D2 D3 D4 D5 D6 D7 CRC ETX

2 37 32 60 32 32 32 40 43 48 55 54 53 46 52 51 15 3

Start ANS --- 28 0 0 --- 8 +0765.43 CRC Stop

4.8.2 Frames ‘ERR’ (38)

Example - ‘Slave’ at address ‘11’ replies to the ‘Master’ (address ‘0’) with an error frame (‘ERR’ frame) indicang that the requested register number is unknown

Header Trail

STX ID RSV FROM TO REG RSV LONG CRC ETX

2 38 32 43 32 33 32 32 46 3

Start ERR --- 11 0 1 --- 0 CRC Stop

(‘UNKNOWN_REGISTER’, error code ‘1’). The error code is codied into the ‘REG’ byte. For a list of error code see secon 4.6.

4.7.1 Frames ‘PING’ (32) and ‘PONG’ (33)

Example - ‘Master’ (address ‘0’) requests conrmaon of existence to the ‘Slave’ at addrress ‘22’ (‘PING’ frame) and the ‘Slave’ replies to the ‘Master’ with a ‘PONG’ frame.

Header Trail

STX ID RSV

2 32 32 32 54 32 32 32 52 3

Start Ping --- 0 22 0 --- 0 CRC Stop

Header Trail

STX ID RSV

2 33 32 54 32 32 32 32 53 3

Start

Pong

FROM

TO REG RSV

FROM

TO REG RSV

--- 22 0 0 --- 0 CRC Stop

LONG

CRC ETX

4.7 CRC calculaon

The ‘frame value’ for the CRC byte is calculated applying a XOR funcon to the ‘frame value’ (see secon 4.5) of all bytes in secons ‘Header’ and ‘Data’, from byte ‘0’ (‘STX’) to the last data byte (‘Dn’).

• if the calculated CRC value is lower than ‘32’, it is normalized by applying the ‘one’s complement’ funcon .

CRC0=STX ^ ID ^ RSV ^ FROM ^ TO ^ REG ^ RSV ^ LONG ^ D0 ^...^ Dn

• if (CRC0<32) -> CRC=!CRC0 (one’s complement funcon)

• if (CRC0>31) -> CRC=CRC0

//example of CRC calculaon in C language int8 Calculate_CRC(int8 CRC_Posion)

{

int8 i,CRC=0; for(i=0;c<CRC_Posion;c++)

{

crc=crc ^ frame[i];

}

if(crc<32) CRC=~CRC; return(CRC);

}

Page 48

5. Opon

The S2 modules provide 1 port for communicaons RS232 ASCII protocol. The S2 modules use the same

protocol as the S4 modules (see secon 4), the only dierence is the physical layer of the bus, that is RS232 for the S2.

S2 modules allow for point-to-point communicaon over RS232 and also allow for mulnode communicaon over

Opon S2

Type of output RS-232 ASCII communicaon

Bus RS-232

Speed 57.6 Kbps a 600 bps

Data format 8n1 (standard), 8o1, 8n2, 8e1

Protocol ASCII

Architecture ‘master - slave’

Address 01 to 31

‘Broadcast’ address 128

Registers* see secon for S4 module

RS232 using a ‘Daisy-Chain’ type of connecon.

Terminals RX1 and TX1 are for the main communicaon with the RS232 bus. Terminals RX2 and TX2 are for the mulnode connecon, so all frames received at RX1 with desnaon address dierent from the local address, will be retransmied through TX2. On the same way, frames received at RX2 with desnaon address dierent from the local address, will be retransmied through TX1.

Figure 16 - Detail for the ‘S2’ module

Tx1

Rx1Rx2

Tx2

GND

*available registers can vary for dierent instruments

Isolaon 1000 Vdc

Temperature operaon from 0 to 50 ºC storage from -20 to +70 ºC

Installaon allowed at ‘Opt.1’, ‘Opt.2’, ‘Opt.3’

CBA

Module S2

A GND

Figure 17 - Connecons for ‘S2’ module

Rx data recepon

Tx data transmission

‘Daisy chain’ Rx data recepon

‘Daisy chain’ Tx data transmission

Page 49

1. Remote keypad LDB-RKB

Industrial keypad with 3 push buons to connect to large format meters from LDB series. It allows to replicate the front keypad of the instrument to a remote locaon.

A RKB remote keypad allows the operator to access the advanced control funcons from the large format meters, such as fast access to alarm setpoints, preset value modicaon, access to maximum and minimum reading values, signal tare for load applicaons, front reset, manual alarm unlock, ...

All these features are accessible while maintaining the main feature of these instruments, which is the installaon in heights for long distance reading.

The RKB remote keypad is provided with an industrial IP65

protected housing, with cable gland output, aligned with the technical specicaons of the LDB series. The RKB remote keypad can be easily installed against wall. The push buons are 25 mm size for easy use even with protecon gloves.

The RKB remote keypad is provided with labeled push

buons and does not included cable.

Normal buon state open Recommended wire 0.25 mm2 Protecon IP65 Output by cable gland Mounng accepts wall mount Color grey Material plasc Weight 200 gr

GND

(<)

(5)

(3)

Connect the wire to the 4 pole terminal located close to the input signal module. Connect 4 wires for keys ‘SQ’ (<), ‘UP’ (5), ‘LE’ (3) and common. Pass the wires through the cable gland idened as ‘remote keypad’ (see Figure 2) and connect the other end to the internal RKB push buons.

181 mm

75 mm

Page 50

Figure 1 - Connecons from RKB to the internal 4 pole terminal

GND SQ UP

(5)

(<)

(3)

Power

Remote keypad

Opon 3 Opon 2

Figure 2 - LDB-26 instrument front view (top), rear view (middle) and internal view (boom).

SignalOpon 1

Page 51

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 61 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal five (5) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.

FOR WARRANTY RETURNS, please have the following information available BEFORE contacting OMEGA:

1. Purchase Order number under which the product was PURCHASED,

2. Model and serial number of the product under warranty, and

3. Repair instructions and/or specific problems

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering.

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.

FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair charges. Have the following information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST of the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems relative to the product.

Page 52

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

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