Yokogawa 720230 - Logic Input Module

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Yokogawa 720230 - Logic Input Module

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Yokogawa

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720230

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Yokogawa 720230 - Logic Input Module

720230 Logic Input Module Details

Compatible with 700986, 700987, 702911, and 702912 logic probes.
Applicable to DL350, DL850 series, and DL950.

Input logic signals can be displayed as waveforms at 10 MS/s sampling resolution. Each port can measure 8 bits, and 2 ports of input are available on each module. Thus, a single module can observe 16-bit logic signals.

You can turn the display of individual bits ON/OFF, and assign each bit its own unique label. In all, you can input and display up to 128 bit of logic signals by installing up to eight modules in a single DL950/DL850E/DL850EV for example.

You can select from four different types of logic probes to best fit the input signal. (For details on logic probes, see page 11.) The input format, maximum input voltage, threshold level, and other settings depend on the logic probe being used; please refer to the specifications of your logic probe. The following logic probes can be used.

Logic probe (TTL level/contact input) 1 m: 702911/3 m: 702912; High-speed logic probe 700986; Isolation logic probe 700987

Specifications:

Input logic signals can be displayed as waveforms at a sampling resolution of up to 10 MS/s. Each port can measure 8 bits, and 2 ports of input are available on each module. Thus, a single module can observe 16-bit logic signals. You can turn display of individual bits ON/OFF, and give each bit its own unique label.

In all, you can input and display up to 128 bits of logic signals by installing up to 8 modules in a single DL850/DL850V. You can select from 4 different types of logic probe to best fit the input signal. For details on logic probes, see page 6 of this catalog. Also see the "Bulletin DL850-00E" catalog for logic probe adaptors and other accessories.)

The input format, maximum input voltage, threshold level, and other settings depend on the logic probe being used. Please refer to the specifications of your logic probe. The following logic probes can be used.

Model	Logic Probe 702911/702912	High-Speed Logic Probe 700986	Isolation Logic Probe 700987
Number of Inputs	8	8	8
Isolated/Non-Isolated	Non-isolated	Non-isolated	Isolated
Max. Input Voltage	±35V	30Vrms	250Vrms
Threshold Level	Approx. 1.4 V	Approx. 1.4 V	6VDC or 50VAC
Response Time	3 µs or less	1 µs or less	1ms or less(DC), 20ms or less(AC)

Overview:

What is an input module, and what are digital input modules?

PLC (programmable logic controller) controlled systems are integral for collecting, processing, and passing along field device data in industrial automation. To work, these PLCs need electronic input modules and output modules. The Input modules collect field data to monitor real machine parameters and/or receive signals, while output modules supply information to field devices.

There are analog and digital inputs. Discrete inputs, a.k.a. digital inputs, are ON or OFF signals that discrete field devices apply to PLC controllers. The digital input module of a PLC system can communicate the general status (High/Low; 1/0; True/False), load condition (ON/OFF), switching mechanism (Activated/Deactivated), Switching Contact Status (Close/Open).

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