Leica DISTO WH15 User Manual

DISTO

DISTO

DISTODISTO

TM

TM

TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

TM

The DISTO
(e.g. laser safety, labeling, ...), system integration is limited to companies which are qualified to integrate such
modules into their own housing and/or complete system.
Therefore this module is not intended to be sold as a final product or for any purposes other than the above­mentioned.

OEM module 3.0 is a powerful, easy to integrate distance measuring module. Due to safety aspects

V1.20

Distance Reference

Type: DISTOTM OEM module 3.0 WH15
Art. No.: 724866

TM

Type: DISTO
Art. No.: 563890

Leica Geosystems AG CH-9435 Heerbrugg

OEM module 3.0 WH30

Laser beam outlet

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DISTO

DISTO

DISTODISTO

TM

TM

TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

V1.20

Contents:

1. TECHNICAL DATA.............................................................................................................................................................3

2. PHYSICAL DIMENSIONS AND FIXING.............................................................................................................................4

3. INTERFACE PARAMETERS..............................................................................................................................................5

3.1. S

3.2. P

4. POWER ON /OFF ...............................................................................................................................................................6

5. SOFTWARE INTERFACE PROTOCOL.............................................................................................................................6

5.1. G

5.2. D

5.3. W

5.4. E

6. COMMANDS.......................................................................................................................................................................9

6.1. G

6.2. S

7. MEASURING ACCURACY...............................................................................................................................................11

OFTWARE PARAMETERS

IN ASSIGNMENT OF THE D-SUB CONNECTOR

ENERAL DEFINITIONS

5.1.1. Characters .............................................................................................................................................................6

5.1.2. Entries....................................................................................................................................................................6

5.1.3. Replies ...................................................................................................................................................................6

ATA FORMAT

ORD INDEXES

RROR REPORTS

ENERAL

ET OF COMMANDS

6.2.1. RESET command (a).............................................................................................................................................9

6.2.2. OFF command (b)..................................................................................................................................................9

6.2.3. STOP/CLEAR command (c) ..................................................................................................................................9

6.2.4. Distance measurement (g).....................................................................................................................................9

6.2.5. Distance measurement (G)....................................................................................................................................9

6.2.6. Tracking (h)............................................................................................................................................................9

6.2.7. Tracking (H) .........................................................................................................................................................10

6.2.8. Signal measurement (k)....................................................................................................................................... 10

6.2.9. Temperature measurement (t) .............................................................................................................................10

6.2.10. Laser (o, p) .....................................................................................................................................................10

6.2.11. Software version (00) ......................................................................................................................................10

6.2.12. Hardware version (01) .....................................................................................................................................10

6.2.13. Serial number (02)...........................................................................................................................................10

6.2.14. Date of manufacture (03).................................................................................................................................10

6.2.15. Setting distance offset (44)..............................................................................................................................10

6.2.16. Setting baud rate (70)......................................................................................................................................11

...............................................................................................................................................................6

(WI) .....................................................................................................................................................7

...........................................................................................................................................................8

.....................................................................................................................................................................9

...............................................................................................................................................5

...................................................................................................................5

...................................................................................................................................................6

........................................................................................................................................................9

8. ACCESSORIES ................................................................................................................................................................11

9. VALIDITY..........................................................................................................................................................................12

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DISTO

DISTO

DISTODISTO

TM

TM

TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

1. Technical data

Typical measuring accuracy for WH15 1)

Typical measuring accuracy for WH30
Maximum measuring accuracy for WH15 1)
Maximum measuring accuracy for WH30

Smallest unit displayed 0.1 mm

Measuring range on natural surfaces 0.3 to 30 m

Measuring range on brown (reflecting) target plate ca. 20 to 100 m

Unambiguous display 0 to 300 m

Measuring reference from front edge (See 2 Physical dimensions

Diameter of laser spot at target at a distance of: 10 m Î 6 mm

Time for a measurement: Single measurement

Tracking
Vibration 10 to 50 Hz, +/- 0.15 mm, 5 cycles

Bump (Shock) 25 g, 6 ms,

Light source Laserdiode 620-690 nm (red)

ESD (Without cables) (IEC 61000-4-2 (1995-01) Level 1)

EMC (Without cables) IEC 61000-4-3 (1995-02)

Power supply DC 9V … 30V

Dimensions 140 x 70 x 55 mm

Temperature range Operation

Degree of Protection IP65; IEC60529 (protected against ingress

Interface Serial asynchronous interface

1

) See 7 Measuring accuracy on page 11

2

) In case of permanent measurement (tracking mode) the max. temperature is reduced to 45°C

1

)

1

)

and fixing on page 4)

100 mÎ 60 mm

1 octave / min (at maximum and minimum

operating temperature)

4000 shocks each axis and direction

Drop 500g single shock once, on all surfaces

IEC 60825-1:1993; Class 2

FDA 21CFR Ch.Ι §1040: 1988; Class ΙΙ

Beam divergence:0.16 x 0.6 mrad

Pulse duration: 15x10

Maximum radiant power: 0.95 mW

Maximum radiant power per pulse: 8mW

Measurement uncertainty: ±5%

2kV tested on metal body

EN55022 Klasse B 1994

FCC Part 15 Class B

ON

OFF

-10 °C to +50 °C 2)

Storage

Weight 430 g

-40 °C to +70 °C

of dust and water

(RS232 and RS422)

+/- 1.5 mm

+/- 3 mm
+/- 2 mm
+/- 5 mm

50 mÎ 30 mm

0.6 to ca. 5 sec

0.15 to 5sec

ISO 9022-36-05

ISO 9022-31-06

-9

max. 250mA

27mA @ 10V

V1.20

s

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DISTO

DISTODISTO

TM

TM

TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

2. Physical dimensions and fixing

V1.20

When fixing the Module you have to be careful not to point the instrument directly toward
the sun. The telescope functions as a magnifying lens and such exposure can damage
the distance measuring device.

You have to ensure, that the optics are kept free from dust, dirt and water.

Clean and Dry:

• Blow away dust from lenses.

• Do not touch the optics with fingers.

• Only clean with a soft cloth; if necessary, dampen with pure alcohol. Do not use other

cleaning agents. Plastic parts could be affected.

Please note the laser beam is not parallel to the housing or to the fixing points.

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DISTO

DISTODISTO

TM

TM

TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

V1.20

3. Interface parameters

3.1. Software parameters

The interface of the DISTOTM OEM module 3.0 has been arranged so that it can be connected to a PC by means
of an adapter. The parameters of the interface are defined ex-works as follows:

9600 baud, none parity, 8 data bits, 1 stop bit

These settings can be changed, using the interface commands.

3.2. Pin assignment of the D-sub connector

The 15 pin D-sub connector contains the lines for RS232, RS422 and the power.

1

VCC

2
3
4
5
6
7
8
9
10
11
12
13
14
15

RX
TX

-DO
+DO

-RI
+RI

9..30VDC

RS232

RS422

ON/OFF
GND

Pin Designator Description Colors for accessories cable

725005 (RS422) 725006 (RS232)

1 RS232 Tx RS232 Send line White
2 RS232 Rx RS232 Receive line Brown
3 -DO RS422 Send line negative W hite
4 +DO RS422 Send line positive Brown
5 -RO RS422 Receive line negative Green
6 +RO RS422 Receive line positive Yellow
7 BAT + Power DC +9V…+30V Brown (Supply cable)
8 BAT + Power DC +9V…+30V

9NC
10 NC
11 NC
12 NC
13 ON / OFF ON: Open OFF: switch to ground Green (Supply cable)
14 GND Ground line Grey Green
15 GND Ground line White (Supply cable)

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DISTODISTO

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TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

V1.20

4. Power on /off

Pin 13 of the D-sub Connector is Open (Tristate):

•
To switch the module on, use command “a” (See 6.2.1 RESET command (a) on page 9).
To switch the module off, use the command “b” (See 6.2.2 OFF command (b) on page 9). After this
command, the measurement module is switched off, but the electronic interface is still active and waits for the
next command on the serial interface.

Pin 13 of the D-sub Connector is switched to ground:

•
The module and the interface board are switched off. All commands are ignored.

5. Software interface protocol

5.1. General definitions

5.1.1. Characters

All characters with ASCII codes below 127 can be used for entering commands. A command is concluded by
means of an ASCII code below 32 (last character or terminator <trm>).
The

DISTO

<cr><lf>.

TM

OEM module 3.0

also transmits a terminator to conclude a reply. The terminator transmitted is

5.1.2. Entries

Each

DISTO OEM module 02

Examples:

Numerical entries (command parameters, %) are always entered as whole numbers and the following format is
permitted:

5.1.3. Replies

DISTOTM OEM module 3.0

replies:

?<trm>

@E123<trm>

12..10+12345678 <trm>

Plain text

A command will result in at least an OK prompt or an error report.

a<trm>
N00N<trm>

Sign (optional) and digits which do not commence with zero: -8007.

command consists of one or more letters and a terminator.

transmits one or more replies to each command received. These are the possible

- OK prompt: Everything ok,
a new command

- Error report: A three-digit error code is transmitted in accordance with the
table in the appendix.

- One or more data words with terminator.

- Plain-text data

DISTO

TM

OEM module 3.0

is ready to execute

5.2. Data format

A data word as reply consists of 16 characters, combined as follows:

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DISTODISTO

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TM

TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

12345678910111213141516

WW....+12345678

Position Description: Remark

1,2 Word index 00-99 With zeroes at start
3,4 no significance In service mode as expansion of word index
5 Attribute 0: Measured value

1: Manually-entered value

6 Units 0: mm

. : No units
7-15 Decimal value With sign and zeroes at start
16 Space

In some instances the following data format appears:

12345678910111213141516

WW....+1234+678

Position Description: Remark

1,2 Word index 00-99 With zeroes at start
3,4 no significance In service mode as expansion of word index
5 Attribute 0: Measured value

1: Manually-entered value

. : No attribute set
6 Units 0: mm

. : No units
7-11 Decimal value 1 With sign and zeroes at start
12-15 Decimal value 2 With sign and zeroes at start
16 Space

V1.20

5.3. Word indexes (WI)

The following WIs are available to the user:

WI no. Format (example) Meaning Rem.

12

13

14

15
31
40
51
53
58

12....+xxxxxxxx

13....+xxxxyyyy

14....+xxxxxxyy

15....+xxxxxxxx

31..06+xxxxxxxx

40....+xxxxxxxx

51....+xxxxxxxx

53....+xxxxxxxx

58..16+xxxxxxxx

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Serial number of module

[0....99999999]

Software version

xxxx: Identification
yyyy: SW-Version 0100 -> V1.00

Hardware version

xxxxxx: Board number
yy: Revision index

Date of manufacture [YYYYMMDD] Year, Month, Day
Slope distance [1/10 mm]
Temperature [1/10 º C]
Always 0 (only for compatibility reasons)
Measurement signal [mV]
Distance offset [1/10 mm]

DISTO

DISTO

DISTODISTO

TM

TM

TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

5.4. Error reports

No. Format Meaning

203

217

221

222

223

224

252

@E203

@E217

@E221

@E222

@E223

@E224

@E252

Prohibited parameter in command entry, or prohibited command, or non-valid
result

Parameter set-up incorrect (Contact Leica Geosystems)

Parity error (Prior to contacting Leica Geosystems please check the Terminal
settings)

Interface buffer overflow
(Contact Leica Geosystems if error occurs when sending less than 24
characters)

Interface framing error
(Contact Leica Geosystems)

GSI buffer overflow
(Contact Leica Geosystems if error occurs when sending less than 24
characters)

Temperature too high
(contact Leica Geosystems if error occurs at room temperature)

V1.20

253

255

256

257

272

to

299

Before contacting Leica Geosystems please collect as much information as possible.

@E253

@E255

@E256

@E257

@E272

Temperature too low
(contact Leica Geosystems if error occurs at room temperature)

Received signal too weak, distance < 250mm
(Use different target and distances, if the problem persists, please contact Leica
Geosystems)

Received signal too strong
(Use different target and distances, if the problem persists, please contact Leica
Geosystems)

Too much background light
(Use different target and distances, if the problem persists, please contact Leica
Geosystems)

Hardware failure (Contact Leica Geosystems)

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DISTO

DISTODISTO

TM

TM

TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

V1.20

6. Commands

6.1. General

After a command has been entered, it is decoded and processed. If additional commands are sent, processing of
the current command will be aborted if possible and the last command to be received will be processed. After the
command has been executed, there will always be either an OK prompt or an error report.

6.2. Set of commands

6.2.1. RESET command (a)

Function: Resets the module.
GSI IN: a<trm>
GSI OUT: ?<trm> or @Exxx<trm>

6.2.2. OFF command (b)

Function: Switches the module off. It is very important to switch the module off, before disconnecting the

power. To switch the module on, use pin 2 at connector J1

(See 3.2 Pin assignment on page 5).
GSI IN: b<trm>
GSI OUT: ?<trm> or @Exxx<trm>

6.2.3. STOP/CLEAR command (c)

Function: Stops the current execution.
GSI IN: c<trm>
GSI OUT: ?<trm> or @Exxx<trm>

6.2.4. Distance measurement (g)

Function: Triggers simple measurement of distance. Each new command cancels an active

measurement.
GSI IN: g<trm>
GSI OUT: WI31 WI51<trm> or @Exxx<trm>

6.2.5. Distance measurement (G)

Function: Triggers configurable measurement of distance.

(not implemented in the current SW version, react like the command g)
GSI IN: G<trm>
GSI OUT: WI31<trm> or @Exxx<trm>

6.2.6. Tracking (h)

Function: Triggers continuous measurement of distance. The measurements are continued until the next

command is issued or until a fault arises.
GSI IN: h<trm>
GSI OUT: WI31 WI51<trm> or @Exxx<trm>

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TMTM

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OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

6.2.7. Tracking (H)

Function: Triggers continuous measurement of distance. The measurements are continued until the next

command is issued or until a fault arises.
GSI IN: H<trm>
GSI OUT: WI31<trm> or @Exxx<trm>

6.2.8. Signal measurement (k)

Function: Triggers continuous measurement of the signal. The measurements are continued until the

next command is received or until a fault arises.
GSI IN: k<trm>
GSI OUT: WI53<trm> or @Exxx<trm>

6.2.9. Temperature measurement (t)

Function: : Triggers measurement of temperature.
GSI IN: t<trm>
GSI OUT: WI40<trm> or @Exxx<trm>

6.2.10. Laser (o, p)

Function: Switches laser on or off.
GSI IN: o<trm> Switches laser on

p<trm> Switches laser off
GSI OUT: ?<trm> or @Exxx<trm>

V1.20

6.2.11. Software version (00)

Function: Outputs software version at interface.
GSI IN: N00N<trm>
GSI OUT: WI13<trm> or @Exxx<trm>

6.2.12. Hardware version (01)

Function: Outputs instrument type at interface.
GSI IN: N01N<trm>
GSI OUT: WI14<trm> or @Exxx<trm>

6.2.13. Serial number (02)

Function: Outputs serial number at interface.
GSI IN: N02N<trm>
GSI OUT: WI12<trm> or @Exxx<trm>

6.2.14. Date of manufacture (03)

Function: Date of manufacture at interface.
GSI IN: N03N<trm>
GSI OUT: WI15<trm> or @Exxx<trm>

6.2.15. Setting distance offset (44)

Function: Sets distance offset. The offset is added to each distance measured. Setting is nonvolatile!
GSI IN: N44N%N<trm>

%: Distance offset [1/10mm] within the range ±29.999m
GSI OUT: WI58<trm> or @Exxx<trm>

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TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

6.2.16. Setting baud rate (70)

Function: Sets the baud rate with fixed parity (none parity).
GSI IN: N70N%N<trm>

% Baud rate % Baud rate
3 1200 6 9600
4 2400 7 19200
5 4800

GSI OUT: ?<trm> or @Exxx<trm>

7. Measuring accuracy

The measuring accuracy corresponds to the ISO-recommendation ISO/R 1938­1971 with a statistical confidence level of 95% (i.e. ± twice the standard deviation,
refer to diagram below). The typical measuring accuracy relates to average
conditions for measuring. It is valid in the tracking mode.
The maximum measuring error relates to unfavorable conditions such as:

- highly-reflecting surfaces (e.g. reflector tapes)

- operating at the limits of the permitted temperature range, adaptation to ambient

temperature interrupted

- very bright ambient conditions, strong heat shimmer
and can be up to ± 2 mm for WH15 and ± 5 mm for W H30 (twice standard
deviation).

V1.20

99.7%

95.4%

68.27%

-2s 2s

-3s

During the measuring time the distance will be averaged. This applies when measuring to
moving targets.

x

-s s 3s

8. Accessories

Interface Cable (725706)

IP65 protected cable for RS232 Interface and power supply (15 pin D-sub to 9 pin D-sub female connector and
separate Power Supply). For colors and assignment refer to table under 3.2 Pin assignment of the D-sub
connector.
Length 3m

Interface Cable (725705)

IP65 protected cable for RS422 Interface and power supply (15 pin D-sub to RS422 and separate Power Supply).
For colors and assignment refer to table under 3.2 Pin assignment of the D-sub connector.
Length 3m

Software (Disto Online)

Is continuously updated. Ask your module dealer or visit the DISTO web site at http://www.disto.com

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TM

TMTM

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30

OEM module 3.0 WH15/WH30 OEM module 3.0 WH15/WH30

Technical Reference Manual

V1.20

9. Validity

This document is valid for the DISTOTM OEM module 3.0. The following firmware versions support the listed
commands:

To get this information refer to

Identification: 0000
Version: V2.00
Version: V2.20
Version: V3.20

6.2.11 Software version (00)

(0000)
(0200)
(0220)
(0320)

on Page 10.

725538-1.2.0en

Printed in Switzerland
Copyright Leica Geosystems AG, Heerbrugg, Switzerland 2001

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Leica Geosystems AG

DISTO

CH-9435 Heerbrugg

(Switzerland)

Phone ++41 71 727 31 31

Fax ++41 71 727 46 73

www.leica-geosystems.com