3 . I n s t r u c t i o n S e t
M N 0 5 0 0 3 0 0 3 E F or m o r e i nf o r m a t i o n v i s i t : www. e a t o n. c o m
3-489
API Mnemonic
Operands
Function
199
D ICF
S
1
, S
2
, D
Immediately Change Frequency
Bit Devices
Word devices
Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T
C D E
F
S
1
*
S
2
*
*
*
D *
DVSPO: 13 steps
ELC ELCB
ELCM
PB PC/PA/PH
PV
PB PH/PA
32 16
P
32 16
P
32 16
P 32 16 P 32 16
P
Operands:
S
1
: Target frequency to be changed
S
2
: Gap time and gap frequency
D
: Pulse output
address (Y0, Y2)
Description:
1. Max frequency for
S
1
: 100kHz. When the ICF instruction executes, it will immediately start to
change the frequency with the ramp-up/down process.
2. The ICF instruction must be executed after the execution of DVSPO or DPLSY instructions.
When this instruction is used together with the DVSPO instruction, operands
S
1
,
S
2
,
D
of the
DICF instruction must be assigned the same addresses
S
1
,
S
3
,
D
as DVSPO. When the
instruction is used with DPLSY, operands
S
1
and
D
must be assigned the same addresses as
S
1
and
D
of DPLSY
.
3. If the ICF instruction is used with the DPLSY instruction, operand
S
2
is invalid.
4. When the ICF instruction is used with the DVSPO instruction, parameter
S
2
functions the same
as
S
3
in
the
DVSPO instruction, specifying the gap time and gap frequency of the ramp-up/down
process.
5.
D,
the
pulse output address supports only Y0 and Y2.
6. It is recommended that the instruction be applied in an interrupt subroutine to obtain a better
response time and more accurate execution...
7. For associated flags and registers, please refer to
Points to note
for the API 198 DVSPO
instruction.
Function Description:
1. If the target frequency is changed by using the DVSPO instruction, the timing change will be
delayed due to the program scan time and the gap time as shown below.
Содержание ELC-PB
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