Appendix 4.4 I/O Control Mode - Mitsubishi Electric MELCEC Q Series User Manual

APPENDICES
Appendix4.4 I/O control mode
The I/O control mode of the QCPU-A is the refresh mode (partial direct I/O depending on
the instruction), and is different from that of the A1SHCPU and A2SHCPU. Therefore pay
attention to the input timing of the input (X) and the output timing of the output (Y).
(1)
For direct mode of the A1SHCPU and
A2SHCPU
Pulse processing program by the SET/RST instruction
To make the QCPU-A execute the pulse output used in the direct mode by the SET/
RST instruction in the A1SHCPU or A2SHCPU, create the program as follows:
(a) When the ACPU common
instructions are used:
(b) When the dedicated instructions
for the QCPU-A are used:
POINT
When a special function module such as the A1SD61-S1 high-speed counter
module is used, use the above program if outputting the pulse signals to the
module is required.
For the QCPU-A
App - 51