Mitsubishi TCP/IP MELSECQ Driver-Link Register variable tag Problem

Dear All,

We are going to upgrade old project with Citect version5.21 and MELSEC over TCP/IP (AJ71E71 card) based on Win98 to 2018R2 and Windows10.

After migration( changing driver from “MESLCQNA” to “MELSECQ”), there is no problem in communication, but I found “Link Register” variable tag does not work properly to change the status of “Link Relay” variable tag.

Here is the code:

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"T1_CSET" variable tag address is: W13B0 (data type: INT)

"T1B_8" variable tag address is: B1208 (data type: DIGITAL)

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Here is the code:

Button: Input On Command ---------------------------

T1_CSET=0;

T1_CSET1=0;

T1_CSET_P=0;

iCNT=TimeCurrent();

T1_CSET=T1_CSET BITOR 0x4000;

SLEEP(3);

T1_CSET=0;

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Then “T1B_8” variable tag should be “true”.

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And:

Button: Input On Command --------------------------

T1_CSET=0;

T1_CSET1=0;

T1_CSET_P=0;

iCNT=TimeCurrent();

T1_CSET=T1_CSET BITOR 0x8000;

SLEEP(3);

T1_CSET=0;

---------------------------------------------------------

Then “T1B_8” variable tag should be “False”.

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Any help is highly appreciated.

E-Mail: m.rassoulzadeh@hta.ir