TXM1.8D SIEMENS

TXM1.8D  SIEMENS Basis unit

Product  Description：

The TXM1.8D is a modular I/O extension component that connects to a PXC or PXM series controller via the island bus. This module is characterized by its eight individual digital inputs, each equipped with a dedicated green LED indicator on the front panel to provide immediate visual feedback of the logical state of the connected device. Its compact design and DIN rail mounting capability make it an ideal choice for high-density control cabinets in smart building applications.

Product Parameters

The technical specifications of the TXM1.8D ensure reliability across various building management scenarios:

• Number of Digital Inputs: 8 independent channels.

• Input Types: Supports potential-free (dry) contacts or pulse counting functions.

• Pulse Frequency: Capable of handling pulse inputs up to a maximum frequency of $20 \text{ Hz}$.

• Operating Voltage: $24 \text{ VDC}$ supplied via the island bus.

• Power Consumption: Approximately $1.1 \text{ W}$ maximum.

• Protection Class: IP20 (according to EN 60529).

• Connection Terminals: Plug-in screw terminals for wires up to $2.5 \text{ mm}^2$.

• Address Connection: Features a modular address plug for easy identification within the bus system.

Product Advantages

One of the primary advantages of the TXM1.8D is its Seamless Integration. As part of the Desigo system, it requires minimal configuration to communicate with central controllers. The Local Status Monitoring via LEDs allows maintenance personnel to troubleshoot issues at a glance without needing to access the software interface.

The module is also highly Space-Efficient, providing eight channels in a slim housing, which reduces the overall footprint of the control panel. Additionally, the Hot-Swappable Capability allows for the replacement of the electronics module without disturbing the permanent field wiring, significantly reducing system downtime during maintenance or upgrades.

Important Considerations and Precautions

When installing or maintaining the TXM1.8D, several safety and technical guidelines must be followed. First, the Bus Loading must be calculated carefully; ensure that the total power consumption of all TX-I/O modules does not exceed the capacity of the power supply or the controller's bus limits.

Second, the Wiring Length for digital inputs should not exceed $300 \text{ meters}$ (approximately $1000 \text{ feet}$) to avoid signal degradation or interference. Third, always ensure that the Address Plug is correctly inserted before powering the system, as the module will not be recognized by the controller without a unique address.

Finally, since the module is rated IP20, it must be installed in a clean, dry environment, typically inside a locked control cabinet, to prevent damage from dust or moisture. Never apply external voltage to the digital inputs, as they are designed for potential-free contacts only.

Product Applications

The Siemens TXM1.8D is widely used in Building Management Systems (BMS) for a variety of monitoring tasks:

• HVAC Systems: Monitoring the status of fans, pumps, and motors (on/off feedback).

• Fault Monitoring: Collecting fault signals from boilers, chillers, or air handling units.

• Energy Metering: Counting pulses from water, gas, or electricity meters to track utility consumption.

• Security and Safety: Integrating feedback from fire alarm panels, smoke detectors, or security door contacts.

• Lighting Control: Receiving inputs from manual override switches or motion sensors to trigger lighting logic.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

Please make an inquiry for more models：

SIEMENS 6ES7141-54H00-0BA0

SIEMENS 6ES7143-5AH00-0BA0

SIEMENS 6ES7144-5KD00-0BA0

SIEMENS 6ES7157-1AB00-0AB0

SIEMENS 6ES5928-3UB21

SIEMENS 6EP1333-2BA20

SIEMENS 6SE7033-2EG84-1BH0

SIEMENS PXC50.D

SIEMENS 6SE7017-8FB61

SIEMENS 6SE7022-2FC61

SIEMENS 6SE7021-1FB61

SIEMENS 3VL3725-2AA36-0AA0

SIEMENS 6XV1870-3QE50

SIEMENS 6ES7231-7PD22-0XA8

SIEMENS 6GK7443-1GX30-0XE0

SIEMENS 6ES7400-1JA01-0AA0

SIEMENS 6ES7405-0KA02-0AA0

SIEMENS 3TF6844-8CM7

SIEMENS 3RH1921-1FA22

SIEMENS 3RB1066-2KG0

SIEMENS 6ES7214-1BE30-0XB0

SIEMENS 6ES7232-4HB30-0XB0

SIEMENS 6ES7222-1HF32-0XB0

SIEMENS 6SE7038-6EK84-1JC2

SIEMENS 1FK6081-6AF71-1ZZ9

SIEMENS TX12.OPEN

SIEMENS 6AV6647-0AD11-3AX0

SIEMENS 6SN2132-0AA11-1BA1

SIEMENS 6SN2155-0AA10-1BA1

SIEMENS 6GK5602-0BA00-2AA3

SIEMENS 6GK5734-1FX00-0AB0

SIEMENS 6GK74435DX050XE0

SIEMENS 6GK7443-1EX30-0XE0

SIEMENS 3ZX1012-ORT02-1AA1

SIEMENS 6SL3244-0BB12-1PA1

SIEMENS 3RH1921-1HA31

SIEMENS 3RV1021-1BA10

SIEMENS 3RH1911-1HA12

SIEMENS 3RV1021-1AA10

SIEMENS 3NA3022

SIEMENS 3NA7822

SIEMENS 6ES7952-1AK00-0AA0

SIEMENS 6ES7952-1AM00-0AA0

SIEMENS 6ES7331-7PF01-0AB0

SIEMENS QLCDM024DCBAN

JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels. JUSTWELL PTE. LTD. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.

This article is from the official website of JUSTWELL PTE. LTD. If reprinted, please attach this link: https://justwellltd.com .com

JUSTWELL PTE. LTD

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.