
14.PMC CONTROL FUNCTION B-63783EN-1/01
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FDxX0: Controlled axis 1 FDxX5: Controlled axis 6
FDxX1: Controlled axis 2 FDxX6: Controlled axis 7
FDxX2: Controlled axis 3 FDxX7: Controlled axis 8
FDxX3: Controlled axis 4 FDxX8: Controlled axis 9
FDxX4: Controlled axis 5 FDxX9: Controlled axis 10
Once the simultaneous start mode ON block is executed, the next
execution is not started until the subsequent command blocks for
the axes along which movement is to be started simultaneously are
all set in the execution wait buffer. Simultaneous start mode is
valid until a simultaneous start mode OFF block (CDxX7 to
CDxX0: 0Bh) is executed next.
A control command for any axis can be used to turn simultaneous
start mode on and off. When a second simultaneous start mode
ON block is specified while simultaneous start mode is already set,
that block is invalidated and terminated.
Example: Specifying a simultaneous start command for the first,
third, and fourth axes
CDxX7 to CDxX0 = 00001010 (= 0AH)
FDxX15 to FDxX0 = 0000000000001101 (= 000Dh)
PMC command Execution wait buffer
(for each axis)
Execution-in-
progress register
(for each axis)
[AX1_BLK] → [AX1] → [AX1_act]
[AX2_BLK] →→
[AX3_BLK] → [AX3] → [AX3_act]
[AX4_BLK] → [AX4] → [AX4_act]
[AX5_BLK] →→
1. Transfer to the execution wait buffer: The axis control block
data signal is sent as soon as the buffer becomes empty.
2. Transfer to the execution-in-progress register: Transfer to
[AXn_ACT] is performed as soon as [AXn_ACT] becomes
empty. [AXn] does not become empty.
Upon the completion of transfer to all of [AX1_act], [AX3_act],
and [AX4_act], [AX1], [AX3], and [AX4] are emptied, and the
execution of the execution-in-progress buffer contents is started at
the same time.
For all other axes, commands can be specified in an ordinary
manner.
CAUTION
1 The RSTx and STPx signals for individual axes can
be used independently, even in simultaneous start
mode.
2 When the SBKx signal for one of the simultaneous
start axes is set to 1, the activation of all the
simultaneous start axes is stopped.