4-7
Section
Zone Data Area
92
4-7
Zone Data Area
The zone data area is used to make zone settings for the present positions of the
axes controlled by the PCU.
By setting zone data to the PCU’s internal memory, it is possible to monitor
whether the present positions for the axes are within the set zones using the
Zone Monitor Flags in the operating memory area.
Zone data settings can be saved to the CPU’s flash memory.
4-7-1 Zone Function
The zone function is used to notify the CPU Unit whether or not the position of the
machine being controlled by the PCU is within a set region. Notification is made
to the CPU Unit using the Zone Monitor Flags.
This function is mainly used when performing interlocks with peripheral devices
or simultaneous control, in response to the present position of the machine.
There are 3 Zone Monitor Flags for each axis. The zones that are monitored
using these flags can be set separately (i.e., zones 0, 1, and 2). To use the zone
function, it is necessary to set both a CW-side value and a CCW-side value for
each zone used, as shown in the following diagram. These values are the “zone
data.” Once the settings have been made, operation will proceed in the following
way, regardless of whether an origin has been established or not.
Zone Monitor Flag ON (1): CCW-side value
≦
Present position
≦
CW-side
value
Zone Monitor Flag OFF (0): Any status other than the above.
Zone data
CCW-side value
CCW direction
Present
position
Present
position
Present
position
Zone data
CW-side value
CW direction
Zone Monitor Flag
If the zone function is not required, set the zone data so that the following is satis-
fied:
CCW-side value
≧
CW-side value
For example, setting both the CCW-side value and the CW-side value to 0 would
be sufficient to disable the zone function.
4-7-2 Zone Data Settings
Zone data is set by writing the settings to the PCU’s internal memory using data
transfer.
The individual zone data settings are shown in the following table. The
addresses shown in the table are the PCU’s internal addresses. When transfer-
ring data, specify the destination address as appropriate. For details on perform-
ing data transfer, refer to
Section 5 Transferring and Saving Data
.
Summary of Contents for CS1W-NC113 - REV 02-2008
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