The TM3AQ2 is a 2-channel analog output module for the Modicon TM3 family—your go-to if you need to send a 4–20 mA loop or a 0–10 V signal out to a VFD, valve positioner, or chart recorder. Resolution is 12 bits (11 bits + sign for bipolar ranges), and the conversion time runs 1 ms plus 1 ms per channel plus one PLC scan, so it keeps up with most process loops without lagging. Non-linearity is ±0.01 %FS and repeat accuracy ±0.4 %FS—tight enough for the control loops I see out here in the grease. Output ripple holds to 20 mV, and absolute accuracy error is ±0.1 %FS at 25 °C, ±1 %FS across the full temperature range. Temperature drift is ±0.006 %FS/°C, so you won't lose the setpoint when the panel warms up on a summer afternoon.
Mounting and wiring—what the panel guys need
Slides onto a standard DIN rail (top hat, 15 mm or 7.5 mm) or plate-mounted with a fixing kit. Width 0.9 in (23.6 mm), depth 2.8 in (70 mm), height 3.5 in (90 mm). For wiring the analog outputs, use twisted shielded pairs and keep the run to 30 m or less—the spec calls that out. Load impedance: 1 kΩ minimum for voltage outputs, 300 Ω for current. If you're running a 4–20 mA loop to a remote transmitter, that 300 Ω gives you plenty of headroom even with long cable resistance. Shock rating is 15 gn for 11 ms, vibration resistance is 3.5 mm at 5–8.4 Hz and 3 gn at 8.4–150 Hz on DIN rail. I've seen modules shake loose on pump skids; this one's built to stay put.
This module is current-production—no end-of-life notice, no last-time-buy looming. If you're freezing a BOM for a new line or need a spare for an existing TM3 rack, it's a safe pick. We quote these to order against an RFQ; lead times vary but the supply chain is well established. Standards coverage includes IEC 61131-2 and CE marking. Pollution degree 2, IP20 enclosure—fine for a clean panel, but don't mount it where coolant spray hits it directly.