Arcus DMX-ETH, Manual

Page: 33 / 78

DMX ETH Manual page 33 rev 1.16
On-the-fly Speed Change
On-the-fly speed change can be achieved with the SSPD command. In order to use the
SSPD command, s-curve velocity profile must be disabled.
SSPD Mode
The correct speed window must be selected in order to use the SSPD command. To
select a speed window, use the
SSPDM
command. Refer to
Appendix A
for details.
During on-the-fly speed change operation, you must keep the initial and destination
speeds within the speed window.
For non on-the-fly speed change moves, set
SSPDM=0 .
Digital Inputs/Outputs
DMX-ETH comes with 2 digital inputs and 2 digital outputs.
Inputs
Read digital input status using the
DI command.
Digital input values can also be referenced one bit at a time by the
DI[1-2] commands.
Note that the indexes are 1-based for the bit references (i.e. DI1 refers to bit 0, not bit 1)
Bit Description
Bit-Wise
Command
0 Digital Input 1
DI1
1 Digital Input 2
DI2
Table 7.0
Outputs
You can drive DO1 and DO2 by using the
DO command. DO value must be within the
range of 0-3.
Digital output values can also be referenced one bit at a time by the
DO[1-2] commands.
Note that the indexes are 1-based for the bit references (i.e. DO1 refers to bit 0, not bit 1)
Bit Description
Bit-Wise
Command
0 Digital Output 1
DO1
1 Digital Output 2
DO2
Table 7.1
The initial state of both digital outputs can be defined by setting the
DOBOOT
register to
the desired value. The value is stored to flash memory using the STORE command.