7-28
Section
Special Instructions
497
The high-speed counter function and pulse output functions cannot be used whi-
le synchronized pulse control is in operation. An error will occur and SR 25503
will be turned ON if a related pulse output instruction is executed to use one of
these functions while synchronized pulse control is being performed.
If the input frequency exceeds the maximum in the table above, the maximum
input frequency for that range will be used. If the input frequency falls below the
minimum, an input frequency of 0 Hz will be used.
Output Frequency Range
The output frequency range is 10 Hz to 10 kHz. If the calculated output frequen-
cy (input frequency
×
scaling factor/100) exceeds 10 kHz, pulses will be output at
10 kHz. If the calculated output frequency falls below 10 Hz, pulses will not be
output (0 Hz).
Changing the Scaling Factor or Output Port
The scaling factor can be changed while synchronized pulse control is in opera-
tion by executing SYNC(––) again with a different scaling factor, but the output
port specifier cannot be changed during operation.
Stopping the Synchronized Pulse Control Output
The synchronized pulse output can be stopped by executing INI(61) with C=005
or switching the PC to PROGRAM mode.
Flags
ER:
A data area boundary is exceeded.
Indirectly addressed DM word is non-existent. (Content of *DM word is
not BCD, or the DM area boundary has been exceeded.)
P1 is not 000, P2 is not 000 or 010, or C is not BCD between 0001 and
1000.
SYNC(––) is executed when bits 08 to 15 of DM 6642 are not set for
synchronized pulse control.
SYNC(––) is executed in an interrupt subroutine while a pulse I/O or
high-speed counter instruction (INI(61), PRV(62), CTBL(63),
SPED(64), PULS(65), ACC(––), PWM(––), or SYNC(––)) is being
executed in the main program.
7-28 Special Instructions
7-28-1
MESSAGE DISPLAY – MSG(46)
FM
: First message word
IR, SR, AR, DM, HR, LR
Ladder Symbols
Operand Data Areas
MSG(46)
FM
@MSG(46)
FM
DM 6649 to DM 6655 cannot be used for FM.
When executed with an ON execution condition, MSG(46) reads eight words of
extended ASCII code from FM to FM+7 and displays the message on the Pro-
gramming Console. The displayed message can be up to 16 characters long,
i.e., each ASCII character code requires eight bits (two digits). Refer to
Appen-
dix G
for the ASCII codes. Japanese katakana characters are included in this
code.
If not all eight words are required for the message, it can be stopped at any point
by inputting “OD.” When OD is encountered in a message, no more words will be
read and the words that normally would be used for the message can be used for
other purposes.
Limitations
Description
Содержание SRM1 - PROGRAMING 02-2001
Страница 1: ...Programmable Controllers Cat No W353 E1 06 SYSMAC CPM1 CPM1A CPM2A CPM2C SRM1 V2 PROGRAMMING MANUAL ...
Страница 2: ...CPM1 CPM1A CPM2A CPM2C SRM1 V2 Programmable Controllers Programming Manual Revised February 2008 ...
Страница 3: ...iv ...
Страница 5: ...vi ...
Страница 9: ...x ...
Страница 15: ...xvi ...