Mitsubishi Electric M800VW Series Programming Manual page 162

Plc programming

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M800V/M80V Series PLC Programming Manual (1/2)

7 Basic Instructions

7.3 Output Instructions

OUT (C): Counters

[Instruction symbol] [Execution condition]

 Setting data

Setting data

Setting value

Counter set value

 Only decimal constant (K) can be used for the counter setting value.

Hexadecimal constant (H) cannot be used for the counter setting value.

 When the operation results up to the OUT instruction change from OFF to ON, 1 is added to the present value (count value)

and the count up status (present value = set value), and the contacts respond as follows:

Non-continuity

 Not counted if the operation result is remained ON. (There is no need to perform pulse conversion on count input.)

 After "present value ≥ set value" has been realized, the contact state will not be changed until RST instruction is executed,

but the present value is further added by +1. In this case, the present value is added by +1 up to 65535, and then counted

up again by +1 from 0.

 A negative number (-32768 to -1) cannot be set as the setting value. If a negative value is set for the word device, operation

is carried out taking the value as a positive value with no signs. If the set value is 0, the processing is identical to that of

when 1 is set.

(1) Setting the timer setting value using the setting display device.

The method for setting the value of counter includes the following two ways.

 Method to validate the setting value (Kn) programmed with the sequence program (Fixed counter)

 A method in which the setting value set with the setting display device is validated. (Variable counter)

Refer to "4.4 Detailed Explanation of Devices" for details on variable counter.

Usable devices

Set value (Valid from 1 to 32767 of the contents of data register)

R/ZR W SW SD

Set value (Valid from 1 to 32767)

IB-1501667-B

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