Setting The Resolution And The Scaling Function; Reading The Position; Setting And Executing The Preset - Datalogic AMT58 Series Manual

GETTING STARTED

Setting the resolution and the scaling function

•
•
NOTE

Reading the position

•
NOTE

Setting and executing the preset

To set and execute the preset proceed as follows:
•
•
•
•
•
•
•
14
AMT58...PN
If you want to use the physical resolution of the encoder, please check that the
Scaling function control
; this parameter is active only if the
on page 65
enabled (="1"), see "
Class 4 functionality" on page 64
on the contrary, if you need a custom resolution, you must enable the scaling
function by setting the
set the required resolution values:
- open the Module parameters page and set the singleturn resolution next to the
Measuring units / Revolution
and "
Measuring units / Revolution" on page 67
- open the Module parameters page and set the total resolution next to the
measuring range parameter, see "
suring range" on page 68
It is possible to enable the scaling function and set a custom resolution
also by entering the web server via browser (see " Integrated Web Server"
on page 90 ): in the Set Encoder Registers page (see " Setting the Parame-
ters" on page 94 ), the operator can either enter the desired value or set it
through the drop-down box in the input field under the WRITE column; then
he has to press the button between the boxes to confirm. The value that is
currently set can be found in the box on the right under the READ column.
To read the value of the absolute position use the Standard Telegram 81, see
"
Standard Telegram 81" on page 48
.
on page 53
It is possible to read the current position of the encoder also by entering
the web server via browser (see " Integrated Web Server" on page 90 ): in
the Encoder position and speed page (see " Encoder Position and Speed" on
page 92 ), the current position of the encoder is displayed. For example, it
is "11562 in Figure 3 on page 92 .
check that the Control by PLC bit 10 of the STW2_ENC control word is ="1", see
"
Control by PLC" on page 55
check that the Class 4 functionality
;
tionality" on page 64
check that the G1_XIST1 Preset control
IST1 Preset control" on page 64
set the preset value by means of Telegram 860 and G1_XIST1_PRESET_VALUE sig-
nal, see "
G1_XIST1_PRESET_VALUE" on page 54
execute the preset by forcing high the Request set/shift of home position bit 12 in
the G1_STW control word, see "
the encoder replies by forcing high the Set/shift of home position executed bit 12
in the G1_ZSW status word, see "
the Master must set back to 0 the Request set/shift of home position bit 12 in the
G1_STW control word, see "
parameter is disabled (="0"), see "
Class 4 functionality
Scaling function control
parameter, see "
;
Module parameters" on page 24
.
; see also "
G1_XIST1" on page 52
;
parameter is enabled (="1"), see "
parameter is enabled (="0"), see "
;
Request set/shift of home position" on page 58
Request set/shift of home position" on page 58
Request set/shift of home position" on page 58
Scaling function control"
parameter is
;
parameter to ="1" first and then
Module parameters" on page 24
and "
and "
Class 4 func-
;
Total
Total mea-
G1_XIST2"
G1_X-
;
;
;