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MELSEC-Q
1 OVERVIEW
1
1.2 Functions Added to Function Version B and Later
(1) Functions added to function version B
The functions added by the function version B A/D converter module are listed
below.
Item Function overview Reference section
Multiple PLC system
compatibility
Compatible with a multiple PLC system. A PLC CPU of function version
B or later are required.
Section 2.1
Resolution mode
The resolution mode can be changed according to the application, and
digital-value resolution settings of 1/4000, 1/12000 or 1/16000 can be
selected.
Section 3.2
High resolution mode
status flag (X8)
This turns ON when in high resolution mode. Section 3.3
Maximum value/minimum
value reset completed flag
(XD)
This turns ON when the maximum and minimum values stored in buffer
memory addresses 30 to 45 are reset by the maximum value/minimum
value reset request (YD).
Section 3.3
(2) Functions added to function version C
The functions added to the A/D converter module of function version C are listed
below.
Item Function overview Reference section
Online module change
You can change the module without stopping the system. A PLC CPU
of function version C or later is required.
Chapter 7
Using the mode switching setting (buffer memory addresses 158, 159:
Un\G158, Un\G159) and operation condition setting request (Y9), the
module is switched between the normal mode and offset/gain setting
mode without the PLC CPU being reset.
Section 3.4.13
Using the dedicated instruction (G.OFFGAN), the module is switched
between the normal mode and offset/gain setting mode without the
PLC CPU being reset.
Appendix 2.1
Mode switching that does
not require PLC CPU to be
reset
Using GX Configurator-AD, the module is switched between the normal
mode and offset/gain setting mode without the PLC CPU being reset.
Section 5.6.2
POINT
(1) See Appendix 1.1 for a comparison of functions of the function version.
(2) See Section 2.2 on how to check the function version.