4-channel analog acquisition, 4-channel digital input (DI), 4-channel relay output module for 485 bus

Analog Input

Input Channels

4 channels single-ended analog input

Input Type

Voltage input/Current input

Measurement Range

0~5V, 1~5V, 0~2.5V, 0~20mA, 4~20mA

Default factory setting: 4~20mA

Sampling Rate Note 1

200 sps (total channels)

200 sps (single channel)

Resolution

12-bit

Accuracy

1‰ Note 2

Input Impedance

Voltage range: 10MΩ  Current range: 249Ω

Range Setting

Each channel can be independently configured

Isolation Method

No isolation from power supply

Digital Input

Input Channels

4 channels digital input

Input Type

Wet contact

Wiring Method

Common cathode or common anode

Logic Level

Logic 0: 0~3VDC

Logic 1: 10~30VDC

Operating Mode

DI input

3750Vrms

Digital Output

Output Channels

4 channels digital output

Output Method

Type A power relay output

Contact Capacity (Resistive)

AC: 250V@5A

DC: 30V@3A

Relay Close Time

7ms

Relay Open Time

3ms

Total Action Time

10ms

Insulation Resistance

>1GΩ@500VDC

Maximum Operating Frequency

20 times/minute (under rated load)

Electrical Endurance

@30VDC/3A  Typical 1x10⁵ times (operating frequency 20 times/minute)

@250VAC/3A  Typical 1x10⁵ times (operating frequency 20 times/minute)

Mechanical Endurance

Typical 2x10⁷ times (no load @ operating frequency 180 times/minute)

Pulse Output Frequency

≦3Hz

Logic Level

Logic 0: Relay open

Logic 1: Relay closed

Operating Mode

DO output

Others

Communication Interface

RS485

Isolation Voltage

1500VDC

RS485 Transmission Rate Note 3

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

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

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

Baud Rate

1200~115200 bps

Watchdog

Software watchdog

Power Supply Voltage

+15~30VDC

Power Protection

Reverse power protection

Power Consumption

Rated 1.5W @ 24VDC

Operating Temperature

-10℃～＋70℃

Storage Temperature

-40℃～＋80℃