TrimbleSPS730 and SPS930

Universal Total StationsHow to Setup for Machine Control

Agenda

• Using Trimble SCS900 Site Controller Software to setup for Machine Control– Setup the SPS730 or SPS930 Total Station• Establish and orient the instrument

– Set the search window– Set the Trimble MT900 target ID– Edit the machine list– Hand off to Trimble GCS900

Setting up the Total Station

• Use a heavy duty tripod– Trimble recommends

p/n 571126275– Needed to stabilize high

speed Trimble MagDrive™ servo mechanism

– Plant legs firmly in the ground, using a wide stance

– Mount and level instrument

Setting up the Total Station• Using either a Trimble TCU or TSC2, start SCS900

– TCU or TSC2 will auto connect when attached or cabled

– TCU or TSC2 will not auto connect over Bluetooth or radio

• From the Main Menu, tap System Setup (6)

Setting up the Total Station

• Next, tap Connect Instrument (1)

Setting up the Total Station

• Next, tap the method by which you want to connect.

• Connect via Radio is used here (1)

Setting up the Total Station

• Next, set the radio channel and ID of the controller– This is the channel and ID stored in the instrument

for later SPS use– Radio channel 1-30 are used for SPS, 31-60 for MC– Network ID is a value from 0-255

Setting up the Total Station

• Once you set the correct channel and ID, tap Next and the controller will connect to the instrument

Setting up the Total Station

• At the next screen, tap OK once you are satisfied with the leveling of the instrument

• Make your selections on the next screen and adjust temperature if necessary, tap OK– PPM is automatically computed based on the values

input for Pressure and Temperature

Setting up the Total Station

• When returned to the System Setup menu, select Setup Total Station Position (2)

Setting up the Total Station

• Tap (2) to setup over a known point

• Tap (1) for a free station setup– You must be able

to see 2 or more known points for this setup

CP1 CP2

CP1

CP2

BAD SETUP!Resection angle <30 degrees

GOOD SETUP!Resection angle 30 – 150 degrees

Good vs Bad Setup

• First setup, instrument and control points are in a line– Bad geometry for a re-section– No intersection angle could result in poor

computed position of the instrument

• Second setup, instrument and control points form a decent triangle– Good intersection will result in a good computed

position of the instrument

• Avoid free station setups where intersection angles are very narrow (<30 degrees) or very wide (>150 degrees)

Setting up the Total Station

• Follow prompts in measuring to control points to position and orient instrument

• Setting up over a known point requires measuring to at least one other known point

• Setting up over an arbitrary location requires measuring to at least two other known points– The more points measured, the better

Setting up the Total Station

• Once you’ve measured to either one (known point setup) or two (arbitrary location setup) control points, you are brought to this screen

• Choose Complete Instrument Setup (2)

Setting up the Total Station

• You are now given two options– We will choose

Setup for use with machine control (2)

Set the Search Window• Define your search

window • Tap the Set button after

aiming to each location– Either top left/bottom

right, or top right/bottom left

– You will see green circles once the corners of the search window have been recorded

• Tap Next once both corners have been set

Search

• Two searches instrument performs

– Quick search• Small search window based on last tracked

position of target and a horizontal / vertical window defined by angle values in SCS900

– Full search (search window defined in SCS900)• Should be looked at as the extents of your

working area• If quick search does not reacquire lock,

instrument goes into full search

Set the MT900 target ID• The next screen allows you to set the target ID of

the Trimble MT900 Machine Target– If aimed in the vicinity of the target, tap the Check ID

button, and SCS900 will retrieve the target ID the MT900 is currently set to

– If you know which ID the MT900 is set to, select it from the drop down and tap Next

– If you wish to change the target ID, select the number from the drop down, and tap Set Target ID

Changing the MT900 Target ID• Only necessary for SPS use

with the MT900• If you wish to change/set the

target ID of the MT900, you must be connected to the MT900 via the MT900 Junction Box

• Can also be changed later via the Trimble CB430 Control Box and GCS900

• IDs 9-16 are used strictly by the MT900

• IDs 1-8 can be used by either the MT900 or the active target ID box for SPS use– 1-8 should be used for MC

only as last resort

Edit the Machine List• Once you finish setting

the MT900, you are brought to this screen

• If the machine list was previously loaded to the instrument, tap Get Machine List and it will be retrieved by SCS900 and will populate this screen

• If you are creating a new list, tap Add…

Create an Entry in the Machine List

• Radio channels 31-60 are reserved for MC use, 1-30 for SPS use

• Give the machine a specific name and assign a radio channel from the drop down list, and tap OK

• Load up to 5 separate machine names / radio channels

Edit the Machine List

• Once you’ve loaded all the machines that you need, tap Save

• Giving the machine a unique name that the operator can remember will help in cases where multiple machines are used on site

• Name the instrument (not shown), tap Next

Hand off to GCS900• Point the instrument in

the area work will start and tap OK

• The instrument radio is configured for MC use

• Now disconnect from the instrument at the next screen– If connected via radio or

Bluetooth, the connection will be terminated for you

Hand off to GCS900

• The Face 2 display on the instrument shows the instrument scanning one SPS channel, and then the machine control channels loaded earlier from the machine list

• Station setup information is written to a memory location in the instrument– GCS900 then calls that information from

the instrument

Summary

• Setting up with SCS900 takes the normal time to setup and orient an instrument, plus a very short amount of time to go through the Machine Control wizard

• MT900– Target ID 9-16 reserved for MC only, 1-16

available (use 1-8 as last resort only as these are the only IDs available for SPS use)

• Radio– Machine use, channels 31-60– SPS use, channels 1-30