ADLINK Technology HSL-4XMO, User Manual

Page: 73 / 112

Operation Theory 63
The latch function is used to capture values on all 4 counters (refer
to section 4.4) at the instant the latch signal is activated.
The latched data can be read by the function
HSL_M_get_latch_data(). The latch logic can be set by the func-
tion HSL_M_set_ltc_logic().
X
Relative Functions:
HSL_M_set_sd()
HSL_M_get_io_status()
HSL_M_set_ltc_logic()
HSL_M_get_latch_data()
EL
The end-limit signal is used to stop the control output signals (OUT
and DIR) when the end-limit is active. There are two possible stop
modes, “stop immediately” and “decelerate to StrVel then stop.” To
select either mode use HSL_M_set_el().
The PEL signal indicates the end-limit in the positive (plus) direc-
tion. MEL signal indicates the end-limit in negative (minus) direc-
tion. When the output pulse signals (OUT and DIR) is towards the
positive direction, the pulse train will be immediately stopped when
the PEL signal is asserted, where the MEL signal is meaningless,
and vise versa. When the PEL is asserted, only a negative
(minus) direction output pulse can be generated when moving the
motor in a negative (minus) direction.
The logic of EL is programmable. You can use
HSL_M_set_el_logic() to set is as normal open or normal close
mode. The signal status can be monitored using the software func-
tion HSL_M_get_io_status().
X
Relative Functions:
HSL_M_set_el():
HSL_M_get_io_status()
HSL_M_set_el_logic()
ORG
The ORG signal is used when the motion controller is operating in
the home return mode. There are 13 home return modes (Refer to
section 4.1.8), any one of 13 modes cam be selected using