LS Industrial Systems GLOFA G7M-DR20U, Руководство пользователя

Страница: 358 / 367

Appendix 2. Flag Lists
App2-1
Appendix 2. Flag Lists
1) User flag lists
Keyword Type Write Name Description
_LER BOOL Enable
Operation error
latch flag Operation error latch flag by the program block(BP). Error
indication occurred while executing a program block
_ERR BOOL Enable
Operation error
latch flag Operation error flag by the operation function (FN) or function
block(FB). It is newly changed whenever an operation is executed.
_T20MS * BOOL
−
20 ms Clock
_T100MS * BOOL
−
100 ms Clock
_T200MS * BOOL
−
200 ms Clock
_T1S * BOOL
−
1s Clock
_T2S * BOOL
−
2s Clock
_T10S * BOOL
−
10s Clock
_T20S * BOOL
−
20s clock
_T60S * BOOL
−
60s Clock
These clock signals are used in the user programs, toggles on/off
every half cycle. The clock signal can be delayed or distorted in
accordance with program execution time as the signal toggles
after scan has been finished, therefore, it is recommended that
clock of enough longer than scan time be used. Clock signals
starts from Off when the initialization program or scan program
starts
•
Example: _T100MS clock
_ON * BOOL
−
Always On Usable in user programs.
_OFF * BOOL
−
Always Off Usable in user programs.
_1ON * BOOL
−
First scan On Turn On only during the first scan after the operation has started.
_1OFF * BOOL
−
First scan Off Turn Off only during the first scan after the operation has started.
_STOG * BOOL
−
Scan Toggle
Toggles On/Off at every scan while a user program is being
executed. (On at the first scan)
_INT_DONE BOOL Enable
Initialization
Program
Complete If this flag is set to on in the initialization program in an user
program, the initialization program stop its operation and the scan
program will starts.
_INT_DATE DATE
−
RTC present date Date Data of standard format (Reference date – Jan. 1, 1984)
_RTC_TOD TOD
−
RTC present time Time Data( Reference time – 00:00:00)
_RTC_WEEK UNIT
−
RTC present day
Day data (0: Monday, 1:Thuesday, 2: Wednesday, 3: Thursday, 4:
Friday, 5: Saturday, 6:Sunday)
REMARK
1) Flags with the mark ‘*’ are initialized when the initialization program starts, and after its execution has been competed the
flags will change in accordance with the restart mode set.
2) RTC related flags could be used if only the optional module for RTC is installed.
50 ms
50 ms