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26 COUNTER FUNCTION BLOCKS
26.3 Counter Function Block
26.3
Counter Function Block
COUNTER_FB_M
When the execution condition is established, this function block starts counting up.
Setting data
■
Descriptions, types, and data types
Processing details
■
Operation processing
• The counter starts counting when detecting the rising edge (from OFF to ON) of (s1). It does not start counting if (s1)
remains ON. The counting is started from the value of (s3). When the count value reaches the value of (s2), (d2) turns ON.
The current count value is stored in (d1).
• A value in the range of 0 to 32767 can be specified for (s2).
• A value in the range of -32768 to 32767 can be specified for (s3). However, when a negative value is specified, the initial
value is set to 0.
• To reset the current value of the counter (d1), reset (s1) of FB directly.
Ex.
When the label name is TIMER_CONT_FB_M_1
Ladder diagram
Structured text
COUNTER_FB_M_1(Coil:=s1,Preset:=s2,ValueIn:=s3,ValueOut:=d1,Status:=d2);
Argument
Description
Type
Data type
s1
Execution condition (TRUE: Execution, FALSE: Stop)
Input variable
BOOL
s2
Counter set value
Input variable
INT
s3
Counter initial value
Input variable
INT
d1
Counter current value
Output variable
ANY16
d2
Output
Output variable
BOOL
[Ladder]
[ST]
RST(M0,TIMER_CONT_FB_M_1.Coil)
[Ladder example]
[Timing chart]
s1
d1
d2
s2
s3
ENO
d
RST
EN
M0
TIMER_CONT_FB_M_1.Coll
Preset
ValueOut
Status
ValueIn
COUNTER_FB_M
Coll
1
10
M0
M10
D10
OFF
OFF
M0
D10
M10
10
ON
ON
2
3
1
Summary of Contents for MELSEC iQ-F FX5 series
Page 1: ...MELSEC iQ F FX5 Series Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 21: ...19 PART 1 PART 1 OVERVIEW Part 1 consists of the following chapter 1 OVERVIEW ...
Page 98: ...96 4 STANDARD FUNCTIONS FUNCTION BLOCKS 4 2 Standard Function Blocks MEMO ...
Page 840: ...838 23 TIME DATA FUNCTIONS 23 4 Division MEMO ...
Page 887: ......