Mitsubishi MELSEC-A User manual

REVISIONS
*The
*Mtanual Number
IB (NA) 66593-A
First edition

[Cautions on Design]
I
0'' DANGER
0 An external output transistor failure may keep output ON or OFF. Add an
external monitoring circuit for
output signals whose incorrect execution could
result
in serious accidents.
A CAUTION
0 Do not bundle control lines or communication wires together with main circuit
or power lines, or lay them close
to these lines.
As a guide, separate the lines bya distance of at least
150 mm, otherwise
malfunctions may occur due
to noise.
[Cautions on Mounting]
A CAUTION
0 Use the PC in an environment that conforms to the general specifications in
the manual.
Using the PC in environments outside the ranges stated
in the general
specifications will cause electric shock, fire, malfunction, or damage
to/deterioration of the product.
0 Make sure that the module fixing projection on the baseof the module is
properly engaged in the module fixing hole in the base unit before mounting
the module.
Failure
to mount the module properly will result in malfunction or failure, or in
the module falling.

[Cautions on Wiring]
Q 1 CAUTION
Ground he shield wire to the encoder @lay box) (using class 3 or higher class
grounding). Otherwise, malfunctioning
wilt result.
Carry out wiring to the PC correctly, checking the rated voltage and terminal
arrangement of the product.
Using a power supply that doesnot conform
to the rated voltage,or carrying
out wiring incorrectty, will*causefire or failure.
Input voltage in excessof the voltage set by the setting pin will cause failures.
Tighten the terminal screws to the stipulated torque.
Loose screws will cause short circuits, fire, or malfukctions.
Make sure that no foreign matter such as chips or wiring offcuts gets inside the
module. It will cause fire, failure or malfunction.
[Cautions on Startup and Maintenance]
@ DANGER
Do not touch terminals while the power is ON.
This will cause malfunctions.
Switch the power off before cleaning or re-tightening terminal screws.
Carrying out
this work while thepower is ON will cause failure or malfunction
of the module.
A CAUTION
Do not disassemble ormodifyany module.
This will cause failure, malfunction, injuries,or fire.
Switch the power OFF before mounting or removing the module.
Mounting or removing
it with the power ON can cause failure or malfunction of
the module.
[Cautions on Disposal]
A CAUTION
Dispose of this product as industrial waste.

INTRODUCTtON
Thank you for choosing the Mitsubishi MELSEC-A Series of General Purpose Programmable Control-
lers. Please read this manual carefully
so that the equipment is used to its optimum. A copy of this
manual should be forwarded
to the end User.
, .. .

1 . INTRODUCTION ....................................................... 1-1-1-2
..
1.1Features ................................ : .............................. 1 - 2
2 . SYSTEM CONFIGURATION ............................................ 2 . 1 . 2 . 1
3 . SPECIFICATIONS .................................................. -3- 1 - 3 - 12
3.1GeneralSpecifications .................................................. 3 - 1
3.2PerformanceSpecifications ............................................... 3 - 2
3.3Functions
............................................................. 3-5
3.4InterfaceswithExternalDevices
........................................... 3 - 6
3.6BufferMemoryAllocation
............................................... 3 - 11
3.7ApplicableEncoders
................................................... 3 - 12
3.5 I/O Signals fromho the PC CPU
........................................... 3 - 9
4 . INSTALLATIONAND PRE-OPERATIONSElllNG PROCEDURE ............. 4 . 1 . 4 . 12
4.1 Pre-OperationSettingProcedure .......................................... 4 - 1
4.2HandlingPrecautions
.................................................... 4 - 2
4.4Wiring
............................................................... 4-7
4.4.1Wiringpreconditions
.............................................. 4 - 7
4.4.2 Wiring example for the connection with the open collector
output pulse generator
............................................ 4 - 8
4.4.3 Wiring example for the connection of a controller to external
input terminals (PRESET and FSTART)
............................. 4 - 11
4.4.4 Wiring examples at external output terminals
(EQUs 1 to 2) .............. 4 - 12
4.3PartNamesandSettings
................................................ 4 - 3
5 . PULSEINPUTANDCOUNTING METHOD ................................. 5-1 -5-8
5.1 Single-phasePulseInput ................................................ 5 - 3
5.2 Countingat 2-Phase Pulse Input
........................................... 5 - 4
5.3 ReadingthePresentValue ............................................... 5 - 5
6 . EXECUTINGTHE COINCIDENCE OUTPUT FUNCTION ...................... 6 . 1 . 6 . 6
6.1 CoincidenceOutputFunction ............................................. 6 - 1
6.1.1 Coincidence output function operation ................................ 6 - 2
6.1.2Programexamples
............................................... 6 - 3
7 . EXECUTINGTHE PRESET FUNCTION .................................. 7 . 1 . 7 . 11
7.1PresetFunction ........................................................ 7-1
7.2PresetUsingtheSequenceProgram
....................................... 7 - 2
7.2.1 Executing the preset function using the sequence program
................ 7 - 2
7.2.2Exampleprogram
................................................ 7 - 3
7.3Preset
by ExternalInput ................................................. 7 - 7
7.3.1 When the preset is executed
by external control signal ................... 7 - 7

...........
.......... . 7 .8
8 . EXECUTING THE RING COUNlERFUWTlffl ............................. 8 - 1 . 8 . 8
8.1 RingCounterFunctio’n ........... , ...................................... 8 -1
8.1.1 Ringcounterfunctionoperation ..................................... 8 -2
8.1.2
Countrange .................................................... 8-3
8.2 ExampleProgram ...................................................... 8 -5
I-
9 . SELECTING ‘AND EXECUTlNGTHE COUMZR FUNCTION ................. 9 . 1 . 9 . 27
9.1 Selecting. a CounterFunction ............................................... 9 -1
9.1.1
Reading the counter function selection count value ...................... 9 -3
9.1.2 Counterrors .................................................... 9-6
9.2 CountDisableFunction .................................................. 9 -7
9.2.1. Exampleprogram ................................................ 9 -8
9.3 Latch Counter Function .............. ... .................................. 9 - 12
9.3.1
Example program ............................................... 9 - 13
9.4
SamplingCounterFunction .............................................. 9 - 17
9.4.1 Exampleprogram ............................................... 9 - 18
9.5 PeriodicPulseCounterFunction .......................................... 9 - 22
9.5.1 Exampleprogram ............................................... 9 - 24
10 . PRO.GR.4MMING FOR USINGTHE AlSD62(ElD) WITH
A REMO=’I~O STATION ............................................ .IO - I - IO - 3
11.1 Errorlnformation ...................................................... 11-1
11.2
Counter Value is Incorrect ............................................... 11 - 2
11.3 Count Cannot be Made ................................................. 11 - 2
APPENDIX 1 PERFORMANCE COMPARISON BETWEEN THE AlSD62(E/D).
THE AlSD61. AND THE AD61 (Sl) ................................... APP . 1
APPENDIX 2 EXTERNALDIMENSIONS ......................................... APP . 3
.._I .
....

1 INTRODUCTION MELSEC-A
1. INTRODUCTION
This user’s manual describes the spsqifications, handling and prqqrgm-
ming of
the Al-SD62/Al &fZWAfSb62D type htgh-s$&d eounter thbdute
(hereinafter called the AlSD62(E/D))
to be-used in combination with a
MELSEC-A series CPU module (hereinaftei called thePC CPU).
The AlSD62, AlSD62E and AlSD62D are a Dq-inpupsinkoutput type, a
DC input source output type and a differential ,input sink output type, re-
spectively.
The maximum
counting speed ia 100 kpps (A,ISD62(E)) or 200 kpps
(A1SD62D).
The A1SD62(OD) counts single-phase and 2-phase pulse inputs as shown
below:
Single-phase pulse input multiplied by one
......... Counts at the leading edge or trailing edgeof the pulse.
Single-phasepulseinputmultipliedby
two A
......... Counts at the leading edge and trailing edge of the pulse.
L
2-phase pulse input multiplied by one
pulse.
2-phase pulse input multiplied by two
pulse.
........ ,Counts at the leading edge or trailing edgeof the phase A
......... Counts at the leading edge and trailingedge of the phase A
2-phase pulse input multiplied by four
......... Counts at the leading edge and trailing edgeof the phase A
and phase B pulses.
1-1

1. INTRODUCTION
MElSEC-A
The following diagram outlines how the AlSD62(E/D) operates.
function selection
Pulse Pulse
generator
m rn
I Encoder
I Externalcontrol
8 , signal
I Controller I Pmset/Counter
-
function selection
(4) I/O signal
bufbr memory
A1SD62
A1SD62E
AiSD62D
(1 1
(2)
CHI
.
(3) Coincidence
output
(2 points)
______.
(1 1 (3) Coincidence
CH2
~
output
(2 points)
(1) Input pulses tothe A1 SD62/A1SD62WA1 SD62D are counted.
(2) The preset or counter function can be selected withan external control signal.
(3) The pulse is compared as a coincidence output with the present count value,
(4) The sequence pro ram helps confirm the I/O signals of the
and aslgnat is Issued accordlngly.
A1 SD62IAlSD628AI SD620 and the buffer rhemory status, and start, stop and
preset the counter.
1-2