TM2DDI32DK

Configured for 32-channel 24 VDC discrete input acquisition in the Modicon M238 logic controller environment, the Schneider Electric TM2DDI32DK (TM2DDI32DK Discrete Input Module) provides direct digital state detection through a single HE10 connector. It supports sink or source input logic, 20.4 to 28.8 VDC input limits, 5 mA input current, and 4 ms response time.

Hardware Specifications

Parameter	Specification
Model	TM2DDI32DK
Brand	Schneider Electric
Product Type	Discrete Input Module
Range	Modicon M238 logic controller
Input Channels	32
Input Voltage	24 VDC
Input Voltage Limits	20.4 to 28.8 VDC
Input Logic	Sink or source
Input Current	5 mA
Input Impedance	4.4 kOhm
Response Time	4 ms at state 0; 4 ms at state 1
Channel Isolation	None
Input-to-Logic Isolation	500 V for 1 minute
Common Points	2
Electrical Connection	1 x HE10 connector
Current Consumption	65 mA at 5 VDC, all inputs at state 1
Mounting	35 mm symmetrical DIN rail
Dimensions	90 mm H x 29.7 mm W x 81.3 mm D
Weight	0.081 kg
Power Consumption	65 mA at 5 VDC
Local Signalling	2 display blocks
Compatibility	Twido, Advantys OTB
GTIN	3595863995749

24 VDC Discrete Input Characteristics

The TM2DDI32DK accepts 32 discrete DC signals with a nominal input voltage of 24 VDC. The specified operating input range is 20.4 to 28.8 VDC. Each input has a 5 mA current requirement and 4.4 kOhm impedance. Sink and source wiring configurations are supported.

The module provides 4 ms response time for both state 0 and state 1 transitions. There is no isolation between individual input channels, while isolation between the input channels and internal logic is specified at 500 V for 1 minute.

Frequently Asked Questions

Q: Does the TM2DDI32DK provide channel-to-channel isolation?
A: No. The supplied specifications state that isolation between channels is not provided. Isolation between the input channels and internal logic is rated at 500 V for 1 minute.

Q: What is the backplane current consumption of the module?
A: The specified current consumption is 65 mA at 5 VDC with all inputs at state 1.

Q: How are field inputs connected?
A: Field wiring is connected through one HE10 connector. The module mounts on a 35 mm symmetrical DIN rail.

Field Installation Guidelines

• Mount the module securely on a 35 mm symmetrical DIN rail and maintain access to the HE10 connector.
• Use wiring appropriate for 24 VDC discrete signals and verify polarity before energizing the inputs.
• Keep input wiring separated from high-voltage and high-current conductors where practical to reduce electrical interference.
• Because the input channels are not isolated from one another, do not use the module as a substitute for channel-to-channel galvanic isolation.
• Verify that the external input supply remains within the specified 20.4 to 28.8 VDC range.
• Confirm sink/source wiring configuration against the connected field devices before commissioning.
• Follow the applicable Twido, Modicon, and installation documentation for connector wiring and grounding.

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