{"product_id":"1734-ie4c-new-in-stock-734ie4c-ab-analog-input-module","title":"1734-IE4C New In Stock 734IE4C Analog Input Module","description":"\u003ch2 id=\"p1\"\u003e1734-IE4C — POINT I\/O 4-Channel 4–20 mA Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eThe 1734-IE4C is a four-channel current input module for the 1734 POINT I\/O system. Each channel reads a 4–20 mA signal from a field transmitter and presents the value as a 16-bit integer to the controller. Four channels in a single POINT I\/O slot keeps analog point count manageable without consuming multiple node positions for small-to-moderate instrument counts. The module requires an external 24V DC loop supply — it doesn't source loop power internally.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1734-IE4C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlatform\u003c\/td\u003e\n\u003ctd\u003ePOINT I\/O (1734)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Range\u003c\/td\u003e\n\u003ctd\u003e4–20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1% of full scale @ 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Input Impedance\u003c\/td\u003e\n\u003ctd\u003e250 Ω (module input resistance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnder-range Detection\u003c\/td\u003e\n\u003ctd\u003eYes — status bit set below 3.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoop Supply\u003c\/td\u003e\n\u003ctd\u003eExternal 24V DC (user-supplied)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Isolation\u003c\/td\u003e\n\u003ctd\u003eNot isolated — channels share common\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V)\u003c\/td\u003e\n\u003ctd\u003e80 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e−20°C to 55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eUL 508, CE, IEC 61131-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e4–20 mA at a Distributed POINT I\/O Node\u003c\/h3\u003e\n\u003cp\u003eThe 1734-IE4C fits into the distributed POINT I\/O architecture — installed in a local junction box or remote enclosure close to the field instruments, connected back to the controller via EtherNet\/IP, DeviceNet, or ControlNet through the adapter module at the node head. This eliminates long analog signal cable runs back to a central I\/O panel, which matter for 4–20 mA: while current loops reject noise well, very long runs still accumulate capacitive loading that slows signal response, and cable resistance in the loop must stay within the transmitter's loop supply headroom.\u003c\/p\u003e\n\u003cp\u003eAll four channels share a common reference — not isolated from each other or the backplane. Field instruments connected to this module must share the same ground reference. Instruments on different electrical systems or with separate ground references will create ground loops, appearing as measurement offset or noise on affected channels. If field instruments come from different systems, signal isolators are required between the transmitter and the module, or use an isolated analog input module.\u003c\/p\u003e\n\u003ch3\u003eLoop Wiring and Scaling\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe external 24V DC loop supply connects to the transmitter's power terminals; the transmitter modulates its output current; the current flows through the module's 250 Ω input impedance and back to supply negative. Verify total loop resistance (cable + 250 Ω) stays within the transmitter's maximum loop voltage specification at 20 mA.\u003c\/li\u003e\n\u003cli\u003eUse the under-range status bit in the controller program for open-circuit detection. Below 3.5 mA, the module sets this bit — wire-break and transmitter failure both manifest as sub-4 mA signal levels that a standard PV check wouldn't catch in the 4–20 mA range.\u003c\/li\u003e\n\u003cli\u003eScale the 16-bit count to engineering units in Studio 5000 using the SCL instruction or module configuration's engineering unit scaling dialog. Verify the engineering unit high and low values match the transmitter's span before putting the measurement into control service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp class=\"faq-q\"\u003e\u003cstrong\u003eQ: Does the module supply loop power to the transmitters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eNo. Loop power (24V DC) must be supplied externally. The module only reads the current flowing through its input terminals — it provides no internal transmitter power.\u003c\/p\u003e\n\u003cp class=\"faq-q\"\u003e\u003cstrong\u003eQ: Can a 0–20 mA transmitter be used with this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eElectrically yes — the module reads any current up to 20 mA. But the under-range detection (below 3.5 mA) will trigger nuisance faults at the 0–4 mA portion of the range. This module is specifically calibrated and optimized for 4–20 mA use; for 0–20 mA, select a module rated for that range.\u003c\/p\u003e\n\u003cp class=\"faq-q\"\u003e\u003cstrong\u003eQ: How are instruments on different ground references handled?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eUse individual signal isolators (loop isolators) between each transmitter and its module input. A loop isolator breaks the ground path between the field instrument and the module while passing the 4–20 mA signal — eliminating the common-mode path that creates ground loops.\u003c\/p\u003e\n\u003cp class=\"faq-q\"\u003e\u003cstrong\u003eQ: What adapter modules are compatible with the 1734-IE4C?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eAll standard 1734 adapters — EtherNet\/IP (1734-AENT), DeviceNet (1734-ADN), ControlNet (1734-ACN), and others. The analog module communicates through the POINT I\/O backplane and is protocol-agnostic.\u003c\/p\u003e","brand":"topsdevice","offers":[{"title":"Default Title","offer_id":42756863197245,"sku":null,"price":202.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/6516\/8701\/files\/AB1734-IE4C_1_cf3965e0-157d-477c-8986-f18e117ba8a1.jpg?v=1768533928","url":"https:\/\/topsdevice.com\/products\/1734-ie4c-new-in-stock-734ie4c-ab-analog-input-module","provider":"topsdevice","version":"1.0","type":"link"}