Digital Gauges: Frequently Asked Questions

This shows the timing chart for signals input from the terminal block. Inputs can be made via voltage-free relay contacts or open-collector signals.
When connecting to a sequencer, we recommend using terminal block input rather than BCD connector input.

Signals input via BCD connectors respond faster than those input via terminal blocks. However, this means that extra care must be taken to avoid noise.
Please refer to the instruction manual for details.

■ Example of terminal block input circuit and sequencer connection

■ Terminal block input circuits for HOLD, RESET, PRESET, and GATE

<1> Timing chart for hold input, BUSY input, and print command output

When importing data into a sequencer or similar device, apply a hold signal to ensure the BCD signal is stable before importing. If you import without applying a hold signal, be aware that data may not be read correctly if the data is acquired at a time when the BCD data changes.

T1
The maximum time from when the hold signal is input until the displayed value and BCD output data are held is 4ms.

T2
This is the time from when the displayed value and BCD output data are held until the print command signal is output, and it is a maximum of 10 μs.

T3
The pulse width of the print command signal is 100 to 150 μs.

T4
The time between the release of the hold signal and the release of the hold state is a maximum of 150ms.

Ts
The minimum time between releasing the hold signal and re-entering it is 160ms. If the hold signal is entered at a shorter interval than this, the print command signal may not be output.

<2> Timing chart of set signals

The pulse width of the reset input signal must be at least 4ms. The time from the input of the reset signal to the reset state must be a maximum of 4ms. The time from the release of the reset signal to the end of the reset state must be a maximum of 150ms.

<3> Timing chart of preset gate input signals

The pulse width of the preset gate signal must be at least 4ms. The time from inputting the preset gate signal until the function activates is a maximum of 4ms. The time from releasing the preset gate signal until the reset state is released is a maximum of 150ms.