TM208LDA24DRN

Configured for discrete I/O control in the Modicon M208 platform, the Schneider Electric TM208LDA24DRN (TM208LDA24DRN Compact PLC Base Unit) provides 14 digital inputs and 10 relay outputs with 100-240 VAC supply and DIN rail or panel mounting.

Hardware Specifications

Parameter	Specification
Model	TM208LDA24DRN
Brand	Schneider Electric
Series	Modicon M208
Product Type	Compact PLC / CPU Base Unit
Operating Temp	0 to 55 deg C
Power Consumption	25 W at 100-240 VAC
Rated Supply Voltage	100-240 VAC
Supply Voltage Limits	85-264 VAC
Total Discrete I/O	24 points
Digital Inputs	14 x 24 VDC, sink/source
Relay Outputs	10
Input Response Time	Approx. 2 ms, turn-on / turn-off
Protection Rating	IP20
Relative Humidity	95%, non-condensing
Mounting	35 mm DIN rail / panel mount
Storage Temperature	-25 to 70 deg C

PLC I/O and Backplane Communication

The TM208LDA24DRN integrates discrete I/O directly into the compact controller base. The 14 digital inputs accept 24 VDC signals and support sink/source configurations, while the 10 relay outputs provide electrically switched discrete output channels. The approximately 2 ms input response time applies to both turn-on and turn-off response as specified.

For Modicon M208 installations, I/O wiring should be separated from higher-voltage conductors and routed according to the cabinet wiring design. The supplied data does not specify a backplane communication velocity, expansion-bus timing, or firmware compatibility matrix, so these parameters should be verified against the applicable M208 hardware and firmware documentation before configuration.

Frequently Asked Questions

Q: What supply voltage does the TM208LDA24DRN require?
A: The rated supply is 100-240 VAC, with a specified operating limit of 85-264 VAC.

Q: How many discrete I/O points are integrated?
A: The unit has 24 discrete I/O points: 14 digital inputs and 10 relay outputs.

Q: Can the controller be mounted on a DIN rail?
A: Yes. The supplied specifications identify 35 mm DIN rail mounting and panel mounting.

Field Installation Guidelines

• Install the controller on a compatible 35 mm DIN rail or suitable panel surface.
• Maintain physical separation between low-voltage signal wiring and higher-voltage AC wiring to reduce electrical interference.
• Route the 24 VDC input wiring according to the sink/source configuration used by the connected field devices.
• Wire relay outputs according to the load type and applicable cabinet protection requirements.
• Connect protective and functional grounding in accordance with the control cabinet design and applicable electrical standards.
• Keep signal cables away from high-current switching conductors, contactors, and drive power cables where practical.
• Verify the actual supply voltage before energizing the 100-240 VAC power input.
• Do not exceed the specified environmental range of 0 to 55 deg C during operation.
• The IP20 rating does not provide protection against direct water exposure; installation should therefore be inside an appropriately protected enclosure.

---