Rockwell Automation 57C422B 2 Axis Servo Module - Manual (Page 60)

4-32 2-Axis Servo Module M/N 57C422B
The change default setups command is used to load and
update setup information, which includes registers 0-14, 31,
34-37, and 83 on the module whether the control loop is
enabled or not.
The update LEDs command will transfer the data in register
27 (and 2075) to the three LEDs on the faceplate of the
module.
The latch status command will update the module current
status registers (74-81).
The define gearing position command allows you to define a
position via register 17, 18 for the gearing encoder.
The set gearing position command is also used to define a
position for the gearing encoder. If a gearing marker pulse
was defined in register 2, bit 12, then the gearing position will
be set when the marker pulse is detected. The status of the
marker pulse is reflected in register 72, bit 10. If a marker
pulse was not defined, then the position is set when the "set
gearing position" command is executed. Note that this last
mode is the same as the "define gearing position" command.
The define sync position command is used to define the sync
position in registers 29, 30.
4.36 Register 67: Command
Register 67 is used to command actions from the module.
The bits in this register and in register 66 are mutually
exclusive i.e., only one function may be selected at a time
from either register. This register is read by the module
continuously. Refer to figure 4.35.