Omron CK3M Series, Hardware User Manual

Page: 124 / 288

Sending Command to Galvo Scanner
You can send a command to the Galvo Scanner by setting Control Bit (Gate3[i].SerialEncCtrl [15:13])
= 111. The command only supports iDRIVE
®
compatible Galvo Scanner of SCANLAB GmbH.
The command has two parameters: CodeH and CodeL.
For details on the command, refer to the manual for the Galvo Scanner.
Use Gate3[i].Chan[j].Dac[0] to set a command.
Data format in which to send a command is as follows.
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Co
mm
and
po-
si-
tion Code-H Code-L Always set 0.
For Code-H in the data format, reverse the most significant bit of CodeH specified by the Galvo Scan-
ner, and store it in there.
For example, when CodeH of the Galvo Scanner is
05 , set 85 to Code-H.
In Code-L, store CodeL specified by the Galvo Scanner as it is.
The read data specified by a command is stored in Gate3[i].Chan[j].SerialEncDataA.
Once it is specified by the command, this status will be retained, therefore, even if you set Control Bit
= 100 after that, the read data will continue.
For example, when you send an actual current position to the CK3W-GC Unit from the iDRIVE
®
com-
patible Galvo Scanner of SCANLAB GmbH, the control command will be $850100 because of CodeH
= 05 and CodeL = 01.
Gate3[i].Chan[j].Dac[0] needs to be set using decimal notation. Therefore, for the control command
$850100 , set Gate3[i].Chan[j].Dac[0]=-2063532032.
3-7-8
PWM Output Function
PWM output is used for controlling the output of the laser light source.
You can set frequency, duty, pulse count, and delay time.
This section describes the functions of the PWM output.
Signal Descriptions
The PWM output is output from the OUT0 terminal.
Frequency Setting
The PWM frequency is set by the formula below, on the basis of PWMPeriod (Gate3[i].Chan[0].Com-
pA[23:12]).
f
PWM
(kHz)=
16×PWMPeriod
10 5
3 Configuration Units
3-80
CK3M-series Programmable Multi-Axis Controller User's Manual Hardware (O036)