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Resetting the IO Link driver of the NXHX-IOL module
After each power cycle, the IO Link driver must be reset. You can reset the
driver either by pushing the
S2
reset button [see position
(4)
in the device
drawing above] or by means of a “reset-by-software” from the netX via the
MMIO4
pin.
To enable a reset-by-software from the netX, you must set the
S1
switch
[see position
(3)
in the device drawing] to the upper position:
Figure 9: Software reset enabled (OUT_I/Q signal disabled)
Thus, the
MMIO4
pin of the netX is connected to the
#RSTOUT
signal of the
IO Link driver. Note that enabling the reset-by-software option
disables
the
OUT_I/Q
signal of the driver, because the
#RSTOUT
signal and the
OUT_I/Q
signal share the same
MMIO4
pin.
To enable the
OUT_I/Q
signal of the driver (and thus disable the reset-by-
software option), you must set the
S1
switch to the lower position:
Figure 10: OUT_I/Q signal enabled (Software reset disabled)
NXHX 90-JTAG | Device description
DOC170202HW03EN | Revision 3 | English | 2019-01 | Released | Public
© Hilscher 2019