Schneider Modicon M238 I/O expansion module, TM2AMI8HT, 8 analog inputs, current 4-20 mA / voltage 0-10 V, obsolete.
| Parameter | Value |
|---|---|
| Type of cable | Shielded cable |
| Range of product | Modicon M238 logic controller |
| Analogue input type | current 4...20 mA non differential voltage 0...10 V non differential |
| Product or component type | I/O expansion module |
| Supply voltage limits | 20.4...28.8 V |
| Supply voltage | 24 V DC |
| Current consumption | 45 mA 24 V DC external 60 mA 5 V DC internal |
| Electrical connection | 1 removable screw terminal block power supply 1 removable screw terminal block sensors |
| Depth | 2.8 in (70 mm) |
| Width | 0.9 in (23.5 mm) |
| Height | 3.5 in (90 mm) |
| Supply | External supply |
| Parameter | Value |
|---|---|
| Category | US1PC1222531 |
| Cross talk | = 10 kOhm voltage 470 Ohm current |
| Total error | +/-1 %FS |
| Non-linearity | +/- 0.002 %FS |
| Repeat accuracy | +/- 0.4 %FS |
| Measurement error | +/- 0.2 % of full scale 25 °C |
| Sampling duration | 160 ms |
| Acquisition period | 160 ms per channel + 1 controller cycle time |
| Dielectric strength | 2500 V between the I/O and internal logic |
| Analogue input number | 8 |
| Temperature coefficient | +/-0.01 %FS/°C |
| Insulation between channel and internal logic | Photocoupler |
Two removable screw terminal blocks connect external 24 V supply and sensors; shielded cable specified. Photocoupler isolation provides 2500 V dielectric strength, with acquisition cycle 160 ms per channel plus one controller cycle time.
The module is available from remaining channel stock through independent distribution. Submit an RFQ to confirm availability.
Not directly. The TM2AMI4LT has 4 analog inputs (vs. 8) and supports temperature probes, while the TM2AMI8HT accepts only 4-20 mA and 0-10 V. They share the same physical footprint, but channel count and input type must match your BOM.
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