Delta Tau Geo Brick, User Manual

Page: 249 / 294

Geo Brick Drive User Manual
Macro Connectivity 249
Transferring the Digital (Discrete) Input and Outputs
A Geo Brick Drive can be populated with up to 32 digital inputs and 16 digital outputs (connectors J6 and
J7) for a total of 48 I/O points (bits) mapped as follows:
Inputs Address Connector Outputs Address Connector
1
st
byte
Y:$78800,0,8
J6
1
st
byte
Y:$78802,0,8 J6
2
nd
byte Y:$78801,0,8 2
nd
byte Y:$78805,0,8 J7
3
rd
Byte Y:$78803,0,8
J7
4
th
Byte
Y:$78804,0,8
For the digital inputs and outputs, we will use the I/O node data transfer method. MACRO I/O node 2 will
be used to carry all 48 points of data:
I/O Node Address Register-Description
2
X:$78420 24-bit register
X:$78421 1
st
16-bit register (Upper)
X:$78422 2
nd
16-bit register (Upper)
X:$78423 3
rd
16-bit register (Upper)
Note
Some Geo Brick Drives may not be fully populated with all the
inputs/outputs bytes shown above. The non-existent bytes can be
simply deleted from the example codes below.