16-channel digital input acquisition module, 485 to Modbus RTU protocol

Digital Input

Input Channels

16 single-ended digital inputs (dry contact or wet contact common anode)

Digital Input Voltage

Dry contact: Logic 0: Grounded

Logic 1: Open or floating

Wet contact: Logic 0: 0~+3V (max)

Logic 1: +10V～+30V

Note: Floating and wet contact high-level states are the same.

Operating Modes

DI input, low-to-high latch, high-to-low latch, counter, frequency measurement

Counter Function Support

32-bit

Counter/Frequency Input Range

0~400Hz

Other

Supports DI inversion function, supports signal filtering function

Digital Output

Channels

16 signal relays, including 8 Type C relays (normally open + normally closed contacts),

8 Type A relays (normally open contacts)

Rated Control Capacity (Resistive Load) Note 1

Type A relay: 5A 250VAC/30VDC

Type C relay: NO: 10A 277VAC, 10A 30VDC

NC: 5A 250VAC, 5A 30VDC

Maximum Allowable Contact Current (Resistive Load)

Type A relay: 5A

Type C relay: NO: 10A, NC: 5A

Maximum Switching Voltage (Resistive Load) Note 2

Type A relay: 277VAC/30VDC

Type C relay: NO: 277VAC/30VDC, NC: 250VAC/30VDC

Minimum Applicable Load (Resistive Load)

100µA 100mV DC

Relay Release Time

Type A relay: 10ms (max), Type C relay: 5ms (max)

Relay Operate Time

Type A relay: 10ms (max), Type C relay: 10ms (max)

Mechanical Life

Type A relay: 5 million operations, Type C relay: 10 million operations

Electrical Life

Type A relay: Over 100,000 operations, 5A 250VAC, resistive load, 85°C, 1S on/1S off

Type C relay: Over 10,000 operations, NO: 5A/NC: 5A 250VAC, resistive load,

room temperature, 5S on/5S off

Operating Modes

DO output, low-to-high delayed output, high-to-low delayed output, pulse output

Other

Communication Interface

RS485

RS485 Transmission Rate Note 3

Maximum 180 times/second (total channels per module, at 115200bps)

Maximum 24 times/second (total channels per module, at 9600bps)

Maximum 3 times/second (total channels per module, at 1200bps)

Baud Rate

1200~115200bps

Watchdog

Software watchdog

Supply Voltage

+10~30VDC

Power Protection

Reverse power protection

Power Consumption

Rated 0.5W @ 24VDC

Operating Temperature

-10℃～＋70℃

Storage Temperature

-40℃～＋80℃