● As a rule, when you specify the relay as an output destination for an OT↑ or OT↓ instruction,
the specification is limited to once in a program. (Double output is prohibited)
● When used as contacts, there are no restrictions on the number of times that can be used.
● A pulse relay cannot be specified as an output destination for an OT, KP, SET, RST or ALT
instruction.
● A word unit pulse relay (WP) cannot be specified as a storage location for a high-level
instruction.
2.5.9 E Error alarm relay
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How error alarm relay (E) works
● Error alarm relays are used to feed back error conditions freely assigned by the user to
internal relays, and to store them in memory.
● Error alarm relays are turned ON and OFF using the SET and RST instructions in the user
program.
● When an error alarm relay goes ON, the number of error alarm relays which are on, the relay
numbers, and the data of the calendar timer which went on first are stored in a memory area
in the CPU unit.
System data register SD
No.
Description
SD80, SD81
Year/month data
Data for the calendar timer when the relay was initially
turned ON
SD82, SD83
Day/hour data
SD84, SD85
Minute/second
data
SD60
Number of relays that are turned ON
SD61 to SD79
Number of relays that are turned ON
● Information for up to 500 error alarm relays can be stored in the memory area. Relays that
can be monitored or operated by the user, however, are those in the range from SD61 to
SD79 only.
■
Usage restrictions
● An error alarm relay (E) cannot be specified as an output destination for an OT, KP, or ALT
instruction.
● An error alarm relay (E) can be turned ON and OFF in multiple locations in the program,
using the SET and RST instructions. However, no check is carried out for overlapping use.
■
Program for setting (turning on) an error alarm relays
● The SET instruction should be used to turn ON error alarm relays in the error alarm
conditions, as shown below.
● Error alarm relays are held even if the error condition goes OFF.
2.5 Explanations about Relays
WUME-FP7CPUPGR-12
2-23
Содержание FP7 Series
Страница 2: ... MEMO 2 WUME FP7CPUPGR 12 ...
Страница 18: ... MEMO xviii WUME FP7CPUPGR 12 ...
Страница 52: ... MEMO 1 34 WUME FP7CPUPGR 12 ...
Страница 61: ...Example 2 Use PSHS RDS or POPS instruction 2 1 Structure of Instructions WUME FP7CPUPGR 12 2 9 ...
Страница 104: ... MEMO 2 52 WUME FP7CPUPGR 12 ...
Страница 123: ...3 9 ANS AND stack WUME FP7CPUPGR 12 3 19 ...
Страница 125: ...3 10 ORS OR Stack WUME FP7CPUPGR 12 3 21 ...
Страница 129: ...3 11 PSHS Push stack RDS Read stack POPS Pop stack WUME FP7CPUPGR 12 3 25 ...
Страница 139: ...4 CNDE instruction 5 Step ladder instructions 6 Subroutine instructions 3 16 ALT Alternate out WUME FP7CPUPGR 12 3 35 ...
Страница 146: ... Application example of timer instructions serial connection of timers 3 17 TM Timer 3 42 WUME FP7CPUPGR 12 ...
Страница 147: ... Application example of timer instructions parallel connection of timers 3 17 TM Timer WUME FP7CPUPGR 12 3 43 ...
Страница 190: ...3 26 JP LBL Jump Label 3 86 WUME FP7CPUPGR 12 ...
Страница 239: ...Name Description SR8 ER 3 46 ST ST ST ST ST ST Data Comparison Start WUME FP7CPUPGR 12 3 135 ...
Страница 246: ... MEMO 3 142 WUME FP7CPUPGR 12 ...
Страница 251: ...Name Description SRA Depending on the comparison result SRB SRC 4 1 CMP Data Compare WUME FP7CPUPGR 12 4 5 ...
Страница 258: ... MEMO 4 12 WUME FP7CPUPGR 12 ...
Страница 277: ...F E D C B A 9 8 7 6 5 4 3 2 1 0 Digit 3 Digit 2 Digit 1 Digit 0 bit 5 8 DGT Digit Data Transfer WUME FP7CPUPGR 12 5 19 ...
Страница 304: ... MEMO 5 46 WUME FP7CPUPGR 12 ...
Страница 321: ...Name Description ER 6 7 DIVFP2 Division FP2 Compatible WUME FP7CPUPGR 12 6 17 ...
Страница 348: ... MEMO 6 44 WUME FP7CPUPGR 12 ...
Страница 388: ... MEMO 7 40 WUME FP7CPUPGR 12 ...
Страница 438: ... MEMO 8 50 WUME FP7CPUPGR 12 ...
Страница 450: ... MEMO 9 12 WUME FP7CPUPGR 12 ...
Страница 520: ... MEMO 10 70 WUME FP7CPUPGR 12 ...
Страница 602: ... MEMO 11 82 WUME FP7CPUPGR 12 ...
Страница 622: ... MEMO 12 20 WUME FP7CPUPGR 12 ...
Страница 650: ... MEMO 13 28 WUME FP7CPUPGR 12 ...
Страница 1160: ... MEMO 18 66 WUME FP7CPUPGR 12 ...
Страница 1188: ... MEMO 19 28 WUME FP7CPUPGR 12 ...
Страница 1211: ...20 4 ASCII Code Table JIS8 Code Table Reference Table ASCII Codes 20 4 ASCII Code Table JIS8 Code Table WUME FP7CPUPGR 12 20 23 ...
Страница 1220: ... MEMO WUME FP7CPUPGR 12 ...
Страница 1221: ... MEMO WUME FP7CPUPGR 12 ...