When a Modicon Premium rack needs a dense bank of 24 V DC digital outputs in a single slot, engineering teams usually reach for a high-channel-count solid-state module rather than stacking several smaller cards. The Schneider Electric Modicon Premium TSXDSY64T2KC is exactly that kind of module: 64 protected transistor outputs on a screw-terminal base, designed to drive solenoid valves, contactor coils, indicator lamps, and small DC loads in premium PLC racks. This guide covers the verified electrical ratings, channel grouping, wiring and addressing conventions, typical applications, and the module's mature lifecycle status so maintenance and procurement teams can specify spares with confidence. SHLY-PLC supplies these modules as an independent industrial-automation distributor; every unit is inspected and tested before dispatch.
What Is the TSXDSY64T2KC?
The TSXDSY64T2KC belongs to the Modicon Premium discrete I/O family (TSX 57 platform). It is a 64-channel solid-state (transistor) output module with positive logic, protected against overvoltage, and intended for 24 V DC field circuits. Dense 64-point cards like this are typically chosen when a machine or process cell has many small on/off actuators and panel space is at a premium: instead of four 16-channel modules, one card occupies a single Premium slot and connects to the field via pluggable screw terminals.
Like other Premium I/O, the module is addressed by its rack and slot position and exchanges data with the processor over the Premium backplane bus. It is not a standalone controller; it must be installed in a Modicon Premium rack with a compatible TSX 57 CPU and the appropriate 24 V DC field supply.
Key Specifications
| Parameter | Specification |
|---|---|
| Range | Modicon Premium automation platform |
| Product type | Discrete output module, solid state protected |
| Number of outputs | 64 |
| Output logic | Positive (source), transistor |
| Output voltage | 24 V DC nominal, 19...30 V DC, conforming to EN/IEC 61131-2 |
| Current per channel | 0.1 A |
| Maximum current per module | 5 A |
| Maximum leakage current | 0.1 mA at 30 V |
| Residual (on) voltage | 1.5 V |
| Switching response time | 1.2 ms |
| Overvoltage protection | Transil diode per channel group |
| Parallel outputs | Up to 3 channels can be paralleled for a higher load current |
| Terminal type | Screw-terminal block |
| Degree of protection | IP20 |
| Lifecycle status | Mature / phase-out; end-of-service announced |
Addressing and Wiring
The 64 outputs are mapped into the process image of the Modicon Premium CPU as discrete output bits, starting at the address assigned to the module's rack and slot. In Unity Pro / PL7 applications the engineer configures the module in the I/O configuration and the editor allocates the 64 output points; field devices are wired to the screw terminals grouped by common. Because the outputs are positive (source) type, each switched terminal feeds +24 V DC to the load when energised, and the load's return runs to the field 0 V bus.
Practical wiring points:
- Feed the field 24 V DC and 0 V from a properly rated power supply; respect the 5 A per-module aggregate current so no common group is overloaded.
- Each channel is rated for 0.1 A. For loads above that, up to three outputs can be paralleled per Schneider's derating guidance; never exceed the per-group and per-module current budgets.
- Use fuses or electronic protection on each field common group to localise a short circuit and protect the module's Transil protection.
- Inductive loads (contactors, solenoids) should have surge suppression fitted at the load; the on-module protection handles transient energy but external snubbers extend contact and module life.
- The 1.2 ms response time is fast enough for standard sequencing, valve piloting, and indicator duties, but not for high-speed pulse train tasks that belong on dedicated counter or motion modules.
Compatible Racks and Processors
The TSXDSY64T2KC plugs into a standard Modicon Premium backplane (rack) and is used with Premium CPUs in the TSX 57 family, powered by the Premium rack's 5 V DC backplane supply. Field power is supplied separately at the terminals. Like other Premium I/O, it is configured with the Schneider PL7 or Unity Pro engineering software and recognized by the CPU during the I/O scan. It is not compatible with Modicon M340 / X80, Quantum, or Momentum racks, which use different form factors and backplanes.
Typical Applications
- Conveyor and packaging lines with many solenoid valves and indicator lamps
- Machine tools and textile machinery driving pilot relays and DC actuators
- Material-handling cells with banks of pneumatic outputs
- Water/wastewater skids controlling motor starters and status lights
- Retrofit and spares support for existing Modicon Premium installations
For these duties, the module gives integrators a compact way to expand 24 V DC output count without multiplying cards. Related Premium I/O and controllers can be browsed in our Schneider range and the broader PLC collection.
Lifecycle and Spare Parts
Schneider Electric classifies the TSXDSY64T2KC under its mature, phase-out lifecycle, and end-of-service has been announced for the Premium I/O family. That means the module is no longer in active high-volume production, but installed Premium platforms remain widespread and reliable. Maintenance teams should hold recommended spare cards for critical lines rather than waiting for a failure; when a card fails, a tested replacement keeps the rack running without a control-system redesign. SHLY-PLC sources inspected, tested surplus and pre-owned Premium I/O; our Discontinued Products range and sourcing team can locate matching cards — simply send the part number and we will confirm availability and compatible alternatives.
Frequently Asked Questions
How many outputs does the TSXDSY64T2KC provide?
It provides 64 solid-state transistor outputs, rated at 24 V DC (19...30 V), 0.1 A per channel, with a maximum aggregate of 5 A per module.
Is this an NPN sink or PNP source output module?
The TSXDSY64T2KC is a positive-logic (source / PNP-style) 24 V DC output: each switched terminal supplies +24 V to the load when the channel is ON, and the load returns to field 0 V.
Can I parallel outputs to switch a heavier load?
Yes, up to three channels may be paralleled per Schneider's published guidance. Always observe the per-group and per-module current limits and add external freewheel or snubber circuits for inductive loads.
Is the TSXDSY64T2KC still manufactured?
No. It is part of the mature, phase-out Modicon Premium family and end-of-service has been announced. Tested surplus and replacement units are still available through independent distributors such as SHLY-PLC for maintaining installed Premium systems.