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Usb interface (/usb1), Pulse input (/pm1), Calibration correction (/cc1) – Yokogawa Button Operated DX2000 User Manual

Page 334: External input function (/mc1)

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13-16

IM 04L42B01-01E

USB Interface (/USB1)

Item

Specifications

USB port

Complies with Rev. 1.1 and host function

Number of ports

2 (one each on the front panel and rear panel)

Power supply

5 V ± 10% , 500 mA (per port)
Devices which need more than 500 mA total bus power for 2 ports can not be connected at the

same time.

Connectable devices

Only connect the devices listed below to prevent damage to the devices.

Keyboard

Complies with HID Class Ver. 1.1
1104 keyboard/89 keyboard (US) and 109 keyboard/89 keyboard (Japanese)
Number connectable units: 1

External medium

USB flash memory (up to 2 GB)
Does not guarantee the operation of all USB flash memories.
External medium such as a hard disk, ZIP, MO, and optical discs are not supported.
Number connectable units: 1

Barcode reader (release number 3 or later)

USB HID Class Ver. 1.1 compatible
English (U.S.) standard USB keyboard compatible

Pulse Input (/PM1)

Item

Specifications

Pulse input

Number of inputs

3 (8 when using the remote control input terminals)

Input type

Isolated from the main circuitry through a photocoupler and built-in isolated power supply for the

input terminals.
Shared common for pulse inputs.

Input type and signal level Voltage-free contact Contact closed at 200 Ω or less and contact open at 100 kΩ or greater

Open collector

ON voltage: 0.5 V or less (sink current 30 mA or more), leakage current when

OFF: 0.25 mA or less

Counting

Counts the rising edges of pulses.
For voltage-free contact input: Contact open to contact close
For open collector:

Voltage level of the terminal H from high to low

Allowable input voltage

30 VDC

Max. sampling pulse period

100 Hz

Minimum detected pulse width

5 ms or more for both low (closed) and high (open)

Pulse detection period

Approx. 3.9 ms (256 Hz)

Pulse measuring accuracy

±1 pulse

Pulse count interval

Scan interval or 1 s

Miscellaneous

Pulse input terminals can be used as remote control input terminals, isolated from remote control

input terminals

Remote control

Number of inputs: 5. Same as remote control (/R1) for the other specifications

Computation function

Same as the computation function (/M1)

Calibration Correction (/CC1)

Item

Specifications

Calibration correction method Corrects the measured value of each channel using segment linearizer approximation.

Number of segment points: 2 to 16 (including the start and end points)

Calibration management

A function to make sure that calibration is performed regularly (release numbers 4 and later).

External Input Function (/MC1)

Item

Specifications

Function

Loads data from other instruments using the Modbus client or Modbus master function and

displays, records, and saves the data.

Number of channels

240 channels (201 to 440)

Display

Same as the measurement channels

Data saving

Same as the measurement channels

Manual sample

Specify up to 120 channels from measurement, computation, and external input channels.

13.5 Options

This manual is related to the following products: