DI-10 Intelligent Digital Input AC/DC - 16-Channel I/O Module

The unit provides 16 input points in one group with common power for field contacts.

Features:

The DI-10 provides 16 input points in one group with common power for field contacts. The inputs are designed for wide ranging DC and AC input signals from external devices. Input characteristics are compatible with a wide range of user-supplied input devices, such as: push buttons, limit switches and electronic proximity switches.

The DI-10 module provides all the functionality of the DI-1 and DI-5 modules except the field voltage polarity cannot be reversed. It has software configurable debounce filters, channel inversion and Sequence-of-Events recording selectable on any channel(s). Frequency, pulse or quadrature counting can also be configured for any 7 input channels.

Configurable Functions

The first 4 channels are high speed inputs, capable of counting up to 10 kHz; the other 12 inputs can count up to 1 kHz. The DI-10 module has 7 user-configurable counter inputs, which appear as 16-bit unsigned integer values in the analog input registers. These can each be configured as frequency counters for any input channel to 1 Hz resolution, or pulse counters, or quadrature counters which work with quadrature inputs on pairs of channels. Channel inversion can be configured on any input channels. Normally a high voltage level applied to a digital input channel will result in a logical 1 state in the digital input register, and the LED on the front panel of the module being set ON. A low voltage level will result in a logical 0 state in the digital input register, and the LED will be OFF. By configuring channel inversion, the situation is reversed: a high voltage level results in a logical 0 state and the LED is set OFF; a low voltage level results in a logical 1 state and the LED is set ON.

Software Debounce Filters can be configured for any input channel, with a time constant from 1 millisecond to 250 milliseconds. When using AC inputs, the input channels must be configured with a debounce filter of ‘AC Filter’.

Sequence-of-Events Recording

Sequence-of-Events (SoE) recording can be configured for any input channel. When SoE is enabled, any event (change of state) on the input channel is logged to 1 millisecond accuracy. This event is automatically included in the Event Log of the RTU. The DI-10 module has a timer that is automatically synchronised with the real-time clock of the processor module.

The DI-10 module has an internal buffer with enough space for 1000 events. The DI-10 module can therefore cope with bursts of up to 1000 events at a time. Events are uploaded into the processor module at a maximum rate of 100 events per second allowing the DI-10 module to cope with events at a sustained rate of 100 events per second.

Overview

16 Digital Inputs
Frequency or Pulse or Quadrature Counting on any 7 Inputs
Isolated DC Output For Powering Inputs
Software Debounce Filter
Wide ranging AC or DC Inputs
Sequence of Events Recording (S.O.E)
3kV Field to Logic Isolation

Order Information

DI-10-1 (Digital Input - 16 channel (SOE/CNTR - only CP-10/21) ( 6 -130 VDC, 20 - 260VAC)

Datasheets

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Product specifications:


General

Output Power	12VDC @ 80mA (1W) isolated, supplied by module
Input Voltage Range	+6 to +130VDC (0-4.9V=OFF, 5.2-130V=ON) (Note: a negative DC supply can be used provided that the channel input voltage is more positive than the common) 20 to 260VAC
Inputs per Module	16
Isolation	3000 Volts RMS between field and logic
Contact Current	4mA (typical)
On-state Current	4.3mA minimum
Off-state Current	1mA maximum
On response Time	Digital Inputs 1 to 4: 50μs maximum* Digital Inputs 5 to 16: 500μs maximum
Off response Time	Digital Inputs 1 to 4: 50μs maximum* (DC) Digital Inputs 5 to 16: 500μs maximum (DC) Digital Inputs 1-16: 30ms (AC)
Pulse Rates / Frequency Digital	Inputs 1 to 4: 10kHz maximum* Digital Inputs 5 to 16: 1 kHz maximum
Frequency Counting	1 Hz resolution on any input(s) (7 counters max.)
Pulse Totalisation	0-65535 Pulses on any input(s) (7 counters max.)
Quadrature Counting	0-65535 Pulses on any input(s) (7 counters max.)
Channel Inversion	Selectable on any input(s)
Debounce Filtering	Time constant 1-250 ms on any input(s) or AC Filter (for AC inputs).
Sequence of Events	1 millisecond resolutionBuffering for 1000 events, uploaded to CPU at 100 events/second. Selectable on any input(s)

Environmental

Operating Temperature	-20°C to 70°C / -4°F to 158°F
Storage Temperature	-40°C to 85°C / -40°F to 185°F
Operating Humidity	5 to 98% RH non-condensing