Programmable Controllers MELSEC-A Series Renewal
Replace high-speed counter module without restrains from specifications of the connected external devices
Modules for Easy Replacement
Supported series: 
Plentiful Q Series modules facilitate the replacement
High-speed counter module
To replace a high-speed counter module without considering the specification of the existing pulse generator (encoders, etc.).
| Counting speed switch setting | A/QnA Series | AnS/QnAS Series | Q Series |
|---|---|---|---|
| 50K PPS | AD61 | A1SD61 | QD62-H01 |
| 10K PPS | AD61S1 | QD62-H02 |
- Note: In some cases, the "limit switch output function" of A1SD61 can be replaced by the "coincidence output function" of QD62-H01/H02.