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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
12 Data Operation – FNC 40 to FNC 49
12.1 FNC 40 – ZRST / Zone Reset
12.1 FNC 40 – ZRST / Zone Reset
Outline
This instruction resets devices located in a zone between two specified devices at one time.
Use this instruction for restarting operation from the beginning after pause or after resetting control data.
1. Instruction format
2. Set data
3. Applicable devices
S: This function is supported only in FX3U/FX3UC PLCs.
Explanation of function and operation
1. 16-bit operation (ZRST and ZRSTP)
Same type of devices from to are reset at one time.
When and are bit devices
1) "OFF (reset)" is written to the entire range from to at one time.
Operand type Description Data type
Head bit or word device number to be reset at one time
≤
Specify same type of
devices.
16-bit binary
Last bit or word device number to be reset at one time 16-bit binary
Oper-
and
Type
Bit Devices Word Devices Others
System User Digit Specification System User
Special
Unit
Index
Con-
stant
Real
Number
Charac-
ter String
Pointer
XYMTCSD.b KnX KnY KnM KnS T C D R U\G VZModifyKH E ""P
33 3 33 33 S 3
33 3 33 33 S 3
P
FNC 40
ZRST
−
−
Mnemonic Operation Condition
16-bit Instruction
5 steps
ZRST
ZRSTP
Mnemonic Operation Condition
Continuous
Operation
Pulse (Single)
Operation
32-bit Instruction
S
1
D
1
S
1
D
1
D
2
D
2
S
1
D
1
D
2
D
1
D
1
D
1
D
2
D
1
D
1
D
1
D
2
D
1
D
1
D
1
D
2
FNC 40
ZRST
Devices through are reset at one time.
D
2
D
1
D
2
D
1
Command
input
Before
execution
After
execution
Executed
OFF
…
+2 +9 +8 +7 +6 +5 +4 +3 +1
D
1
D
2
D
1
D
1
D
1
D
1
D
1
D
1
D
1
D
1
D
1
OFFOFF
…
OFFOFF OFF OFF OFF OFF OFF OFF OFF