Precautions For Positioning Module And Pulse I/O Module Migration - Mitsubishi Electric MELSEC-Q Series Migration Manual
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Also See for MELSEC-Q Series:
- User manual (834 pages) ,
- Reference manual (674 pages) ,
- Programming manual (624 pages)
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8.4
Precautions for Positioning Module and Pulse I/O
Module Migration
Wiring
■Positioning module
There are differences in the layout of PULSE COM terminals between the QD75D2N/QD75D4N and the RD75D2/RD75D4.
To use the 40-pin connector of the QD75D2N/QD75D4N with the RD75D2/RD75D4, wiring to the 2B20 and 2B19 pins is
required.
■High-speed counter module
The wiring for coincidence output differs between the QD62E and the RD62P2E.
To use the 40-pin connector of the QD62E with the RD62P2E, wiring to the A01 and A02 pins is no longer required. (A01 and
A02 are non-connection pins.)
Dedicated instruction
There is no difference between the MELSEC-Q series and the MELSEC iQ-R series.
Writing parameters
The MELSEC iQ-R series allows parameters to be written to the CPU module as well as the positioning module. This makes
it possible to control parameters centrally by the CPU module, thereby making it easier to change the module in maintenance.
The module parameters and module extension parameters stored in the CPU module are reflected to the positioning module
when the system is powered on, the CPU module is reset, or the operating status of the CPU module is changed from STOP
to RUN.
To set the module extension parameters using a program, execute the parameter setting program after Module access flag
turns on. Because changing the operating status of the CPU module from STOP to RUN overwrites the parameters stored in
the CPU module, restart the parameter setting program.
To set positioning data using a program or change positioning data using the teaching function, especially for the system
where positioning data varies from one workpiece to another or the system where settings are changed with GOT or other
external devices, set "Positioning module" in "Extended parameter storage setting" under "Basic setting" of module
parameter, and store parameters into the positioning module using the module backup function.
I/O signals and buffer memory areas
The layouts of I/O signals and buffer memory areas differ between the MELSEC-Q series and the MELSEC iQ-R series.
If I/O signals and buffer memory areas are used in the MELSEC-Q series program, the program needs to be corrected for the
MELSEC iQ-R series.
For details on these precautions, refer to the following.
MELSEC iQ-R Module Configuration Manual
MELSEC iQ-R Positioning Module User's Manual (Startup)
MELSEC iQ-R Positioning Module User's Manual (Application)
MELSEC iQ-R High-Speed Counter Module User's Manual (Startup)
MELSEC iQ-R High-Speed Counter Module User's Manual (Application)
MELSEC iQ-R Channel Isolated Pulse Input Module User's Manual (Startup)
MELSEC iQ-R Channel Isolated Pulse Input Module User's Manual (Application)
8 POSITIONING MODULE AND PULSE I/O MODULE MIGRATION
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8.4 Precautions for Positioning Module and Pulse I/O Module Migration
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