Why Engineers Specify the TSXCTZ2A for Counting Tasks
When a Modicon TSX Micro platform needs reliable pulse counting, the Schneider TSXCTZ2A counter module delivers a focused, two-channel solution. It handles 2 counting inputs at a 40 Hz counting frequency and a 100 Hz network frequency, so it suits moderate-speed event and position counting without overspecifying the rack. As a consulting engineer, I would position this module where deterministic, low-channel counting matters more than raw speed.
What the Module Actually Does
The TSXCTZ2A is a counter module within the Modicon TSX Micro automation platform. It accepts 24 V DC and 5 V DC input voltages and draws 18 mA input current. The module weighs 0.21 kg and consumes 15 mA, which keeps panel load and mounting effort modest. Two counting inputs give you straightforward dual-channel counting in one slot.
Key Parameters That Drive Selection
Input thresholds decide whether your sensor signals register cleanly. At 5 V DC, state 1 requires at least 2.4 V and state 0 sits at 1.2 V or below. At 24 V DC, state 1 needs at least 11 V while state 0 stays at 5 V or below. Guaranteed state 0 current is 2 mA or less at 24 V DC and 1 mA or less at 5 V DC; guaranteed state 1 current is at least 6 mA at 24 V DC and at least 3.7 mA at 5 V DC.
Input impedance is 0.27 Ohm at 5 V DC at Un, at least 0.44 Ohm at 5 V DC at U = 2.4 V, and 1.4 Ohm at 24 V DC at Un. Response time is 1.5 ms for event processing, 8 ms for the master task, and 3 ms overall. The input type is resistive at 24 V DC, and input compatibility covers 2-wire and 3-wire proximity sensors at 24 V DC.
Where This Counter Module Fits
Angle D — replacement and upgrade — is the practical lens here. If an existing TSX Micro rack loses counting capability, the TSXCTZ2A restores two counting channels without a platform migration. Typical scenarios include packaging lines counting items at moderate rates, and position feedback from proximity sensors on indexing conveyors. In both cases, the 24 V DC compatibility with 2-wire and 3-wire proximity sensors removes the need for signal conditioning hardware.
Installation and Setup Guidance
Mount the module in the Modicon TSX Micro rack and confirm sensor supply and input wiring match the 24 V DC or 5 V DC ranges documented above. Because input compatibility covers 2-wire and 3-wire proximity sensors at 24 V DC, verify your sensor type before commissioning. Check state 0 and state 1 current margins against the guaranteed values to avoid false counting. Follow the manufacturer’s installation manual for all wiring and configuration steps.
Maintenance and Long-Term Reliability
Inspect connections periodically and confirm sensor signals remain within the documented voltage and current windows. Environmental factors such as temperature and vibration affect long-term stability, so review panel conditions during routine service. For a replacement-focused program, keeping a spare TSXCTZ2A on hand shortens unplanned downtime on TSX Micro lines.
Compatibility and Integration Notes
The module belongs to the Modicon TSX Micro automation platform, so it integrates directly into existing TSX Micro racks. It works with 2-wire and 3-wire proximity sensors at 24 V DC. Confirm your controller and rack revision support this counter module before ordering.
What to Verify Before You Buy
Check your rack series, required counting channels, and sensor type. Confirm the 40 Hz counting frequency meets your line speed. SpareTechPLC supplies industrial automation parts and can help confirm availability. Please verify current lifecycle status and availability with SpareTechPLC before ordering.
Frequently Asked Questions
How many counting inputs does the TSXCTZ2A provide?
It provides 2 counting inputs with a 40 Hz counting frequency and a 100 Hz network frequency.
Which sensors can I connect?
The module supports 2-wire and 3-wire proximity sensors at 24 V DC, with a resistive input type at 24 V DC.
What are the input voltage options?
It accepts 24 V DC and 5 V DC, with defined state 0 and state 1 thresholds for each range.
What is the response time?
Response time is 1.5 ms for event processing, 8 ms for the master task, and 3 ms overall.
How much does the module weigh?
It weighs 0.21 kg and consumes 15 mA.
