Instruction manual

4. SERVO SYSTEM CPU DEVICES
4 − 20
(14) START buffer full (M2050) ..............................Signal sent from PCPU to SCPU
(a) This signal switches ON when the PCPU fails to process the specified data
within 65 seconds following a positioning START (SVST) instruction or a
control change (CHGA/CHGV) instruction from the sequence program.
(b) A M2050 reset must be executed from the sequence program.
(15) Manual pulse generator enabled flag (M2051 to 2053)
................................................................................. Signal from SCPU to PCPU
The manual pulse generator flag designates the enabled/disabled status for
positioning executed by pulse inputs from manual pulse generators connected
to P1 to P3
(Note)
of the A273EX or A172SENC.
• ON................Positioning control by manual pulse generator inputs is enabled.
• OFF..............Positioning control by manual pulse generator inputs is disabled
(inputs are ignored).
REMARK
(Note): For details on the P1 to P3 connector of the A273EX or A172SENC,
please refer to the Motion Controller A273UHCPU/A173UHCPU
User’s Manual.
(16) Cam data/limit switch output data batch-change request flag (M2056)
................................................................................. Signal from SCPU to PCPU
(a) The cam data/limit switch output data batch-change request flag is used to
change the cam data/limit switch output data imported at power-on or servo
system CPU reset into the other cam data/limit switch output data.
(Cam data/limit switch output data changes are valid in both the real and
virtual modes.)
1) Turning M2056 from OFF to ON causes the cam data/limit switch output
data (limit switch output data in cam axis within-one-revolution current
value mode) which have been written to the extended file registers from
No. 10 on to be imported to the PCPU.
Since the import of cam data is valid on the leading edge (OFF to ON) of
M2056, it cannot be stopped if M2056 is turned OFF during import.
2) Make a reset at normal completion or error detection of the cam data/limit
switch output data import.
• At normal completion ... M2057: ON
• At error detection ..... M2058: ON
(b) Refer to Section 8.4.6 and 8.4.7 for details of cam data/limit switch output
data changes.