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Y301 Serial I/O Module
Model Naming
The positions after Y301- represent DI / DO / AI / AO channel counts on one module. 0 means no channels of that type. Models without AO use three characters for DI, DO, and AI; models with AO retain the fourth position.
| Code | Channel count |
|---|---|
0–9 | 0–9 |
A | 10 |
G | 16 |
W | 32 |
Interface options are specified separately from the I/O code; use the configuration table in the relevant specification.
| Example | Model interpretation |
|---|---|
Y301-222 | 2 DI, 2 DO, 2 AI, and no AO. |
Y301-G00 | 16 DI; no DO, AI, or AO. |
Y301-00G | 16 AI; no DI, DO, or AO. |
Y301-0004 | 4 AO; no DI, DO, or AI. |
MiniLink Series
MiniLink Series are compact serial I/O modules for small-scale switch acquisition, simple relay control, and device integration.
| Product Image | Model | DI | DO | AI | AO | Documents |
|---|---|---|---|---|---|---|
 | Y301-110 | 1 | 1 | 0 | 0 | User Manual Specification Technical Manual |
 | Y301-200 | 2 | 0 | 0 | 0 | User Manual Specification Technical Manual |
 | Y301-020 | 0 | 2 | 0 | 0 | User Manual Specification Technical Manual |
ControlLink Series
ControlLink Series are serial I/O modules with both digital inputs and relay outputs. All models include DI and DO channels for integrated acquisition and control.
| Product Image | Model | DI | DO | AI | AO | Documents |
|---|---|---|---|---|---|---|
 | Y301-220 | 2 | 2 | 0 | 0 | User Manual Specification Technical Manual |
 | Y301-222 | 2 | 2 | 2 | 0 | User Manual Specification Technical Manual |
 | Y301-440 | 4 | 4 | 0 | 0 | User Manual Specification Technical Manual |
 | Y301-444 | 4 | 4 | 4 | 0 | User Manual Specification Technical Manual |
 | Y301-880 | 8 | 8 | 0 | 0 | User Manual Specification Technical Manual |
FlexPoint Series
FlexPoint Series expand single-type I/O points for applications requiring additional DI, DO, AI, or AO channels.
| Product Image | Model | DI | DO | AI | AO | Documents |
|---|---|---|---|---|---|---|
 | Y301-600 | 6 | 0 | 0 | 0 | Specification Technical Manual |
 | Y301-800 | 8 | 0 | 0 | 0 | Specification Technical Manual |
 | Y301-G00 | 16 | 0 | 0 | 0 | Specification Technical Manual |
 | Y301-00G | 0 | 0 | 16 | 0 | Specification |
 | Y301-0004 | 0 | 0 | 0 | 4 | Specification |
 | Y301-0006 | 0 | 0 | 0 | 6 | Specification |
 | Y301-0008 | 0 | 0 | 0 | 8 | Specification |
Note:
Y301-G00means 16DI, whileY301-00Gmeans 16AI. They are different models.
Quick Selection Guide
- For small-point applications, choose MiniLink Series:
Y301-110/200/020. - For combined acquisition and control, choose ControlLink Series:
Y301-220/222/440/444/880. - For single-function point expansion, choose FlexPoint Series:
Y301-600/800/G00/00G/0004/0006/0008.
For a detailed comparison of all Y301 Serial I/O Module models, see the Y301 Serial I/O Module Selection Guide.