4: I
NSTRUCTIONS
R
EFERENCE
4-14
FT1A S
MART
A
XIS
U
SER
’
S
M
ANUAL
FT9Y-B1382
Discontinuity of Device Areas
Each device area is discrete and does not continue, for example, from input to output or from output to internal relay. In addition,
special internal relays M8000 through M8177 are in a separate area from internal relays M0 through M1277. Data registers D0
through D999, non-retentive data registers D1000 through D1999, and special data registers D8000 through D8199 are in
separate areas and do not continue with each other.
Advanced instructions execute operation only on the available devices in the valid area. If a user program syntax error is found
during programming, WindLDR rejects the program instruction and shows an error message.
NOP (No Operation)
Details of all other advanced instructions are described in the following chapters.
The internal relay ends at M1277. Since the MOV (move) instruction reads 16 internal
relays, the last internal relay exceeds the valid range, resulting in a user program
syntax error.
M8125
REP
S1 –
M1270
D1 –
D0
MOV(W)
This program results in a user program syntax error. The destination of the
DIV (division) instruction requires two data registers D999 and D1000. Since
D1000 exceeds the valid range, a user program syntax error occurs.
I0
REP
S1 –
D100
S2 –
D200
DIV(W)
D1 –
D999
The MOV (move) instruction sets data of data register D0 to 16 internal relays M1260
through M1277 in the first repeat cycle. The destination of the second cycle is the next
16 internal relays M1280 through M1297, which are invalid, resulting in a user program
syntax error.
For details about repeat operations of each advanced instruction, see the following
chapters.
M8125
REP
2
S1 –
D0
D1 R
M1260
MOV(W)
No operation is executed by the NOP instruction.
The NOP instruction may serve as a place holder. Another use would be to add a delay to the CPU scan time, in order to
simulate communication with a machine or application, for debugging purposes.
The NOP instruction does not require an input and device.
NOP
Summary of Contents for microsmart pentra
Page 1: ...FT1A SERIES FC9Y B1382 Ladder Programming Manual ...
Page 6: ...Preface 5 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Page 104: ...7 DATA COMPARISON INSTRUCTIONS 7 10 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Page 122: ...8 BINARY ARITHMETIC INSTRUCTIONS 8 18 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Page 138: ...10 SHIFT ROTATE INSTRUCTIONS 10 12 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Page 162: ...11 DATA CONVERSION INSTRUCTIONS 11 24 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Page 188: ...12 CALENDAR COMPARISON INSTRUCTIONS 12 26 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Page 198: ...15 REFRESH INSTRUCTIONS 15 4 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Page 202: ...16 INTERRUPT CONTROL INSTRUCTIONS 16 4 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Page 266: ...20 DUAL TEACHING TIMER INSTRUCTIONS 20 4 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 318: ...25 USER COMMUNICATION INSTRUCTIONS 25 22 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...