8\n\n172\n\nTX-I/O™\n\nDigital input modules\n•\n\nTXM1.8D TXM1.16D\n\nTwo fully compatible versions: – TXM1.8D: 8 inputs, each with a three-color LED (green, yellow or red) – TXM1.16D: As TXM1.8X, but 16 inputs, each with a green LED 8 or 16 digital inputs; individually configurable for status signals, status pulses (with a memory function) or counter pulses (up to 10 Hz) Compact DIN format, small footprint Separate terminal base and plug-in I/O module for convenient handling – Self-establishing bus connection for maximum ease of installation – Terminal isolation function for fast commissioning – I/O module replaceable in seconds, without rewiring and without affecting the full functioning of the remaining I/O modules All terminals are directly on the I/O modules, allowing direct connection of field devices without additional terminal strips. Simple strategy for operation and display – I/O status LED for each I/O point; mode of operation (N/C or N/O) depends on I/O function – LEDs for fast diagnostics Double-sided labels for identification of all I/O points\n\n• • •\n\n• •\n\n•\n\na CM2N8172en_02 31 Jan 2009\n\nBuilding Technologies\n\n\r\n

Functions The modules support the following I/O functions:\n\nFunction\nStatus indication Status pulses Counter pulses\n\nSignal type\nD20 D20R (only with BIM) D20S C\n\nDescription\nVolt-free, interrogation (maintained contact), N/O contact (With BIM: also N/C contact) Volt-free, N/O contact, interrogation (pulse) Volt-free, N/O contact, interrogation (pulse, max. 10 Hz) (TXM1.16D: I/O points1 ... 8 only)\n\nFor a detailed description of these functions, please refer to document CA110761, "TX-I/O™ Functions and operation".\n\nType summary ASN Digital input module TXM1.8D Digital input module TXM1.16D The terminal base and the plug-in I/O module are interconnected and delivered in the same box. The available accessories include address keys, label sheets, and spare transparent label holders. Refer to data sheet CM2N8170.\n\nDelivery\n\nAccessories\n\nTechnical and mechanical design For a description of the features common to all TX-I/O™ modules, please refer to the TX-I/O™ Engineering and installation manual, document CM110562.\n\n2/8 Siemens Building Technologies TXM1.8D, TXM1.16D – Digital input modules CM2N8172en_02 31 Jan 2009\n\n\r\n

Indicators and operator controls\n18 20 22 24 26 28 30 32\n\nConnection terminals (No. 1 screwdriver) with test pickup (for 1.8...2 mm pins) and terminal number Signal designation\n\n19\n(9)\n\n21\n\n23\n\n25\n\n27\n\n29\n\n31\n\n33\n\n(10) (11) (12) (13) (14) (15) (16)\n\n12\n\nAddress key and module status LED\n\n(2) (1) (2)\n\n(4) (3)\n\n(6) (4)\n\n(8) (5)\n\n(10) (12) (14) (16) (6) (7) (8)\n\nI/O point numbers (I/O points 9 ... 16: TXM1.16D only)\n\n2\n8172z10\n\n4\n\n6\n\n8\n\n10\n\n12\n\n14\n\n16\n\n1\n\n3\n\n5\n\n7\n\n9\n\n11\n\n13\n\n15\n\nI/O status LEDs (TXM1.8D: Configurable - green/yellow/red TXM1.16D: Green)\n\nI/O status LEDs\n\n• The I/O status LEDs indicate the status of the inputs and outputs (peripheral\ndevices)\n\n• The LEDs on the TXM1.16D are green • In the case of the TXM1.8D the LEDs are three-colored. If the I/O function supports\nit, the module can display Alarm = red and Service = yellow, besides Normal = green\n\n• The LEDs are also used for diagnostic purposes\n\nModule status LED\n\n• The module status LED illuminates the transparent address key • The (green) LED shows the status of the module as a whole (as opposed to the\nstatus of the I/O points) • It is also used for diagnostics\n\nAddress key\n\n• The module operates only with the address key inserted • The module address is mechanically encoded in the address key • When replacing the plug-in I/O module, the address key must be swiveled outward. It\nremains plugged into in the terminal base.\n\n3/8 Siemens Building Technologies TXM1.8D, TXM1.16D – Digital input modules CM2N8172en_02 31 Jan 2009\n\n\r\n

Module labeling The plug-in I/O module has a removable transparent cover (the label holder) for insertion of a label.\n\n2 1\n\nDisposal The device is classified as waste electronic equipment in terms of the European Directive 2002/96/EC (WEEE) and should not be disposed of as unsorted municipal waste. The relevant national legal rules are to be adhered to. Regarding disposal, use the systems setup for collecting electronic waste. Observe all local and applicable laws.\n\nEngineering, mounting, installation and commissioning Please refer to the following documents Document TX-I/O™ Functions and operation TX-I/O™ Engineering and installation manual Replacement of legacy modules TX-I/O™ Engineering documentation V2.37 TX-I/O™ Engineering documentation V4 Number CM110561 CM110562 CM110563 CM1101 ff CM111001 ff\n\nMounting\n\nPermitted orientation\n\nThe TX-I/O™ devices can be installed in any orientation: It is important to provide adequate ventilation so that the admissible ambient temperature (max. 50°C) is not exceeded.\n\n4/8 Siemens Building Technologies TXM1.8D, TXM1.16D – Digital input modules CM2N8172en_02 31 Jan 2009\n\n8172z11\n\n\r\n

Technical data Supply (bus connector on side) Operating voltage Extra low voltage SELV or PELV in accordance with HD384 Max. power consumption TXM1.8D\nTXM1.16D (for the sizing of power supplies, see CM110562)\n\nDC 22.5 ... 26 V\n\n1.1 W 1.4 W\n\nProtection\n\nAll terminals of the modules Bus connector on side\n\nAgainst shortcut and incorrect wiring with AC / DC 24 V No protection!\n\nField devices Insulation resistance\n\nMeasuring cables\n\nThe of the connected field devices against mains voltage must comply with the requirements for safety extra-low voltage (SELV) or protection by extra-low voltage (PELV) as per HD 384. Cable material Solid or stranded copper wire Cable cross section See manual CM110562 Permitted cable length max. 300 m Digital inputs are not electrically separated from the system electronics. Mechanical contacts must be volt-free Electronic switches must comply with SELV / PELV standards. Contact sensing voltage Contact sensing current Contact resistance with contacts closed Insulation resistance with contacts open Min. closing / opening time [ms] including bouncing 80 50 40 DC 21.5 ...25 V 1.6 mA (initial current 10 mA) Max. 200Ω Min. 50kΩ Max. bounce time [ms] 40 30 30\n9\n\nDigital inputs / counter inputs *)\n\nMax. Counting frequency (symmetric)\n\nMaintained contact Pulse contact Counter *)\n\n10 Hz\n\nWhen integrated via island bus: counter memory *) *) Counting function for TXM1.16D: I/O points 1 ... 8 only Connection terminals Mechanical design Solid conductors Stranded conductors without connector sleeves Stranded conductors with connector sleeves (DIN 46228/1) Screwdriver\n\n0 ... 4.3 x 10 (32 bit counter)\n\nRising cage terminals 1 x 0.5 mm2 to 4mm2 or 2 x 0,6 mm∅ to 1.5 mm2 1 x 0.5 mm2 to 2.5 mm2 or 2 x 0,6 mm∅ to 1.5 mm2 1 x 0.25 mm2 to 2.5 mm2 or 2 x 0,6 mm∅ to 1.5 mm2 Slot-headed screws Screwdriver No. 1 with shaft diameter ≤ 4.5 mm 0.6 Nm 1 x 1.8 … 2.0 mm\n\nTest pickups (terminals)\n\nMax. tightening torque For pin diameter\n\n5/8 Siemens Building Technologies TXM1.8D, TXM1.16D – Digital input modules CM2N8172en_02 31 Jan 2009\n\n\r\n

Classification to EN 60730\n\nMode of operation of automatic electrical controls Contamination level Mechanical design Protection standard to EN 65029 Front-plate components in DIN cut-out Terminal base Operation Climatic conditions Temperature Humidity Mechanical conditions Operation Climatic conditions Temperature Humidity Mechanical conditions\n\nType 1 2 Protection class III\n\nHousing protection standard Ambient conditions\n\nIP30 IP20 To IEC 60721-3-3 Class 3K5 –5 ... 50 °C 5 … 95 % rh Class 3M2 To IEC 60721-3-2 Class 2K3 –25…70 °C 5 … 95 % rh Class 2M2\n\nIndustry standards\n\nProduct safety Automatic electronic controls for household and similar use Electromagnetic compatibility Interference immunity Industrial environments Emitted interference Residential, commercial and light industrial environments CE conformity EMC Directive C-tick conformity in accordance with Australian EMC framework Radio Emission Standard UL approval (UL 916, UL 8) The product environmental declaration CM1E8172 contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal) Terminal base and plug-in I/O module Housing to DIN 43 880, see "Dimensions" With / without packaging\n\nEN 60730-1\n\nEN 61000-6-2 EN 61000-6-3\n\n2004/108/EC\nRadio Communications Act 1992 AS / NZS 3548 UUKL ISO 14001 (Environment) ISO 9001 (Quality) SN 36350 (Environmentally compatible products) 2002/95/EC (RoHS) RAL 7035 (light gray) TXM1.8D 1 / 185 g TXM1.16D 199 / 220 g\n\nEnvironmental compatibility\n\nColor Dimensions Weight\n\n6/8 Siemens Building Technologies TXM1.8D, TXM1.16D – Digital input modules CM2N8172en_02 31 Jan 2009\n\n\r\n

7/8

Connection diagrams (examples)

K1K2K3K4S5

8172z 13

U Digital input module

K1 Status contact (N/O) K2 Status contact (N/C) K3 Pulse contact (N/O) K4 Pulse contact (N/C) S5 Electronic switch

TXM1.8D, TXM1.16D TXM1.16D only

I/O point

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)(11) (12) (13) (14) (15) (16)

System neutral ⊥ (–) 1)

1 3 5 7 9 11 13 15

18 20 22 24 26 28 30 32 Input (+)

2 4 6 8 10 12 14 16

19 21 23 25 27 29 31 33 1)

Terminals 1, 3, 5 etc. are system neutral terminals

– They are interconnected, not in the terminal base but in the plug-in I/O module. This means that when the I/O module is removed, there is no connection. – The system neutral of a digital input can be connected to any system neutral terminal

For wiring details refer to the TX-I/O™ Engineering and installation manual, CM110562.

Terminal layout

8/8

Dimensions Dimensions in mm

8172M 01

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