• The input filtering system and counting speed of replacement Q Series dedicated modules QD62-H01 and
QD62-H02 are the same as those of existing A (Large Type) high-speed counter modules AD61 and
High-speed counter modules can be replaced without being restrained by the specifications of existing pulse
generators (e.g. an encoder).
• AD61/AD61S1 and QD62-H01/QD62-H02 have different counting ranges.
Modify the program in order to use the same counting range as that of the module before replacement.
• AD61, AD61S1:
• QD62-H01, QD62-H02: -2,147,483,648 to 2,147,483,647 (32-bit signed binary)
• The number of points occupied by the module changes from 32 to16 points, and thus the I/O signal
assignment (X/Y) also changes. Due to additional functions, the buffer memory addresses are changed and
program modification is necessary. Check the specification at "High-Speed Counter Module User's Manual":
SH-080036, and modify the program.
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5.1 Replace high-speed counter modules (AD61(S1)) with Q Series modules
0 to 16,777,215 (24-bit unsigned binary)