
Series 30i/31i/32i-MODEL A
PMC Supplemental Programming Manual
01 05.03.30
H. Yonekura
New registration
B-63983EN/02-4
EDIT
DATE
DESIG.
DESCRIPTION
26/92
DRAW.NO.
Insert the following after "2.5.1 Compatibility with the PMCs for the 16i/18i/21i-B"
5.3.2 Compatibility with the PMC-SA1 for the Series 21i-B
The 32i-A PMC/L is highly compatible in the source program level with
the PMC-MODEL SA1 (PMC-SA1) for Series 21i-MODEL B (21i-B).
Transporting programs requires modification because the specifications
of the following functions have been changed.
(1) In case of PMC-SA1, the first level execution period is fixed at 8
msec. In case of 32i-A PMC/L, it can be switched between 4 and 8
msec, using a CNC parameter.
(2) In case of PMC-SA1, the basic instruction execution speed is 5
µsec/step. In case of 32i-A PMC/L, it is 1 µsec/step.
(3) As the execution speed of instructions become faster, the following
items about execution timing may be changed.
- The execution cycle of the second level of ladder
- The execution timing between the first level and second level of
ladder
- The timing between ladder execution and I/O transfer
You have to check whether the program works correctly on the on
the 32i-A PMC/L, even if the program worked correctly on the
PMC-SA1.
(4) The memory requirements for the system, for some functional
instractions and for symbol/comment (extended type) are changed.
Generally, the total program size for the 32i-A PMC/L becomes
bigger than one for the PMC-SA1 even if the program sources are
same. If the program size exceed the capacity of the flash ROM,
please change the ladder step option or reduce the symbol and
comment.
(5) For the PMC-SA1, the timer precision defined with the TMR
functional instruction is fixed at a certain value. For the 32i-A
PMC/L, the timer precision can be set up for each timer number
separately. See Subsection 4.3.1 of PMC Programming Manual for
details.
(6) The nonvolatile memory control keep relay (MWRTF and
MWRTF2) has been changed from K16 to K909.
(7) In the PMC-SA1, the system area in keep relay has been changed
from "K17 to K20" to "K900 to K999".
(8) Function code 33 of WINDR instruction is changed to low speed
type.