Delta Tau GEO BRICK LV Manual Do Utilizador
Geo Brick LV User Manual
Troubleshooting
251
Strobe Word and Axes Data Structures
The amplifier processor in the Geo Brick LV conveys data and certain status bits to the PMAC user. This
information, pertaining to a specific channel, is sent over using the ADC registers of each channel.
information, pertaining to a specific channel, is sent over using the ADC registers of each channel.
Strobe Word Structure
These functions are established by sending commands to the amplifier processor from the PMAC using
the ADC Strobe Word:
the ADC Strobe Word:
PMAC Variable
Description
Address
I7006
Axis 1-4 ADC Strobe Word
X:$78014
I7106
Axis 5-8 ADC Strobe Word
X:$78114
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
0
1
1
1
1
1
1
1
1
0
1
1
0
0
1
0
0
0
0
1
1
1
1
1
Always $FE
=0 Servo
=1 Stepper
=1 Stepper
See decription
=0 I2T fault
=1 I2T Warning
=1 I2T Warning
=0 Protect
=1 Write
=1 Write
=0 No Reset
=1 Reset
=1 Reset
=000 ($0) Axis 1
=001 ($1) Axis 2
=010 ($2) Axis 3
=011 ($3) Axis 4
=001 ($1) Axis 2
=010 ($2) Axis 3
=011 ($3) Axis 4
=0 Save
=1 Write
=1 Write
Address Axis $F
Bit #
Value
About bits [12:9]:
Before 8/18/2009
These bits are used to set the I2T limit of the axis.
These bits are used to set the I2T limit of the axis.
8/18/2009 – 10/1/2012
These bits have no significance. I2T is set automatically in the firmware.
These bits have no significance. I2T is set automatically in the firmware.
After 10/1/2012
Bits [11:10] are command bits for displaying either firmware version or current option in ADC B.
Bits [11:10] are command bits for displaying either firmware version or current option in ADC B.
If bits [11:10] = 11 then ADC B bits [9:6] display the amplifier firmware version.
If bits [11:10] = 00 then ADC B bits [7:6] display the axis current option.