BLIIOT DAM110 Remote Digital I/O Modules User Manual

BLIIOT DAM110 Remote Digital I/O Modules

Product Information

Specifications

• Power Supply: DC 9-36V
• Power Consumption: Typically 0.3W; Models with Relay Output 3W; Peak voltage must not exceed +40V
• Communication Protocol: Modbus RTU (RS485, Modbus Address: 1~247)

Product Usage Instructions

• The DAM series I/O module is a data acquisition module that features digital input, relay output, analog input, thermal resistance PT100/PT1000 input, and thermocouple input.
• It supports MODBUS RTU protocol and communicates through the RS-485 serial port, making it suitable for various industrial automation measurement and control systems.\

Model List

Features

• Digital Input: Wet Contact/Dry Contact, compatible with pulse counting, TTL
• Digital Output: Relay (Max 5A/250VAC), Normal Open, compatible with pulse output
• Analog Input: Default is 0/4-20mA 16Bits, other options: 0-5V, 0-10V
• RTD: Default is PT100 2/3 wire, PT1000 is an option.
• TC: Support B, E, J, K, N, R, S, T type Thermocouple

FAQ

• Q: Can the DAM series I/O module be used in residential applications?
• A: The DAM series I/O module is primarily designed for industrial automation measurement and control systems. It is not recommended for residential applications.
• Q: What is the warranty period for the DAM series I/O module?
• A: Please refer to the Warranty section in the user manual for detailed information on the warranty period.

Preface
Thanks for choosing the BLIIoT Remote I/O Module. These operating instructions contain all the information you need for the operation of a device in the DAM family.
Copyright
This user manual is owned by Shenzhen Beilai Technology Co., Ltd. No one is authorized to copy, distribute or forward any part of this document without the written approval of Shenzhen Beilai Technology. Any violation will be subject to legal liability.
Disclaimer
This document is designed to assist users to better understand the device. As the described device is under continuous improvement, this manual may be updated or revised from time to time without prior notice. Please follow the instructions in the manual. Any damages caused by the wrong operation will be beyond warranty.
Revision History

Product Introduction

Overview
DAM series I/O module is a data acquisition module that features digital input, relay output, analog input, thermal resistance PT100/PT1000 input, and thermocouple input.
DAM series I/O module supports MODBUS RTU protocol, and communicates through the RS-485 serial port, it is widely used in various industrial automation measurement and control systems.
Model List

I/O

Model

| ****

Digital Input

| ****

Digital Output

| ****

Analog Input

| ****

RTD

| ****

TC

---|---|---|---|---|---
DAM102| 2| | | |
DAM104| | 2| | |
DAM106| 2| 2| | |
DAM108| 4| | | |
DAM110| | 4| | |
DAM112| 4| 4| | |
DAM114| | | 2| |
DAM116| | | 4| |
DAM118| | | | 2|
DAM120| | | | 4|
DAM122| | | 2| 2|
DAM124| | | 4| 4|
DAM128| | | | | 8
Digital Input: Wet Contact/Dry Contact, compatible with pulse counting, TTL

Digital Output: Relay (Max 5A/250VAC), Normal Open, compatible with pulse output Analog Input: Default is 0/4-20mA 16Bits, other options: 0-5V, 0-10V

RTD: Default is PT100 2/3 wire, PT1000 is an option.

TC: Support B, E, J, K, N, R, S, T type Thermocouple

Features

• Support Modbus RTU protocol
• RS485 serial port with ESD protection
• DC9～36V power supply with anti-reverse connection protection
• Industrial grade chip, reliable performance with in-built watchdog
• LED for status indication makes it easy to program in filed
• Support configure parameters, load/export profiles via PC
• Wall mount or 35mm standard DIN rail installation
• Digital Input: Wet Contact/Dry Contact, compatible with pulse counting, TTL
• Digital Output: Relay (5A/250VAC), compatible with pulse output
• Analog Input: 4~20mA/0-20mA/0~5V/0~10V, 16-bit AD acquisition and processing, the maximum and minimum values of the analog input can be configured, and the actual value can be converted automatically
• Thermal Resistance: The accuracy of the PT100 input can be adjusted online through the configuration software
• Thermocouple: B, E, J, K, N, R, S, T type Thermocouple, Thermocouple model and compensation can be set online through the configuration software.

Specification

Power

Consumption

| Typically≤0.3W; Models with Relay Output≤3W; Peak voltage

must not exceed +40V

Communication Protocol| ****

Modbus RTU (RS485, Modbus Address: 1~247)

Isolation| Not isolation. Common ground. Relay contact independent

output.

Data Format| “n,8,1”, “e,8,1”,”o,8,1”,”n,8,2”, etc
Baud Rate| 2400, 4800, 9600, 19200, 38400, 57600, 115200Bps, etc
Digital Input| Wet contact/Dry contact
Logic level: 0～0.5V or shorted is 0, +3～30V or open circuit is 1
Input electrical level range: 0 ~ 30V, limit range is -10 ~ 40V
| Pulse counting: The counting sampling frequency is 1KHz, and the width of the high and low levels of the pulse is required to be >1mS; When each channel has a transition from 1 to 0, the count value is incremented by 1; the maximum count value of

each channel is 4 bytes: FFFFFFFFH.

---|---

Digital Output

| Relay 250V5A(AC) or 14V20A(DC)
Can be set as an electrical level mode or pulse mode output, and the pulse width can be set from 0.1S to 25S
Support maintaining the relay state after power failure

Analog Input

| Input range: Default 0/4-20mA, other options: 0-5V, 0-10V
Input signal: DC
Overload capacity: 1.2 times the range, still working;

instantaneous (<1S) 3 times the range, not damaged

Impedance: Voltage channel > 1 kΩ /, current channel ≤ 150Ω
RTD| PT100(Default) or PT1000, 2/3 Wire
Measurement

Accuracy

| ±0.2%FS

TC

| B, E, J, K, N, R, S, T type thermocouple
2 wire input
Measurement Accuracy: ±0.15%FS (-20°C ~ +85°C)
Working

Temperature

| -20～+70°C
Storage| -40～+85°C
Humidity| 5～95% RH, No condensation (Below 40°C)
Altitude| 0～3000 meters
Environment| No explosion, corrosive gas and conductive dust, no significant

shaking, vibration and shock

Temperature

Drift

| ≤100ppm/°C
Dimension| 110mm×84mm×30mm(LWH)
Installation| 35mm standard DIN rail installation

Thermocouple: Support B, E, J, K, N, R, S, T type thermocouples

Type| Temperature Measuring Range| Nominal Sensitivity| Cold Junction Temperature

Range

---|---|---|---
B| -250°C ~ +1820°C| 10.086 (+500°C ~

+1500°C)

| 0 ~ 125°C
E| -200°C ~ +1000°C| 76.373

(0°C ~ +1000°C)

| -55°C ~ +125°C
J| -210°C ~ +1200°C| 57.953| -55°C ~ +125°C
| | (0°C ~ + 750°C)|
---|---|---|---
K| -200°C ~ +1372°C| 41.276

(0°C ~ + 1000°C)

| -55°C ~ +125°C
N| -200°C ~ +1300°C| 36.256

(0°C ~ +1000°C)

| -55°C ~ +125°C
R| -50°C ~ +1768°C| 10.506

(0°C ~ +1000°C)

| -50°C ~ +125°C
S| -50°C ~ +1768°C| 9.587

(0°C ~ +1000°C)

| -50°C ~ +125°C
T| -200°C ~ +400°C| 52.18

(0°C ~ +400°C)

| -55°C ~ +125°C

Packing List

• 1x DAMxxx I/O Module, Wiring terminal, USB, DIN rail bracket Package does not include any sensor and adapter

Installation

DIN Rail or Wall Mounted

Interface

DC IN 9~36V

| +| DC9~36V positive input
---|---|---
–| DC9~36V negative input

DC Out 9~36V

| +| DC9~36V positive output
–| DC9~36V negative output
RS485| A| Positive
B| Negative

Digital Input

| 1| Digital input 1
GND| Ground for 1~2
2| Digital input 2
3| Digital input 3
GND| Ground for 3~4
4| Digital input 4

Analog Input

| 1~4| Analog Input 1~4
GND| Ground
| 1+| Channel 1 Normally Open Contact
1-| Channel 1 Output ground

Relay Output

| 2+| Channel 2 Normally Open Contact
---|---|---
2-| Channel 2 Output ground
3+| Channel 3 Normally Open Contact
3-| Channel 3 Output ground
4+| Channel 4 Normally Open Contact
4-| Channel 4 Output ground

PT100

| 1+| Channel 1 +
1-| Channel 1 –
GND| 3 Wire System Ground of Channel 1
2+| Channel 2 +
2-| Channel 2 –
GND| 3 Wire System Ground of Channel 2
3+| Channel 3 +
3-| Channel 3 –
GND| 3 Wire System Ground of Channel 3
4+| Channel 4 +
4-| Channel 4 –
GND| 3 Wire System Ground of Channel 4

TC

| 1+| Thermocouple Channel 1 +
1-| Thermocouple Channel 1 –
2+| Thermocouple Channel 2 +
2-| Thermocouple Channel 2 –
3+| Thermocouple Channel 3 +
3-| Thermocouple Channel 3 –
4+| Thermocouple Channel 4 +
4-| Thermocouple Channel 4 –
5+| Thermocouple Channel 5 +
5-| Thermocouple Channel 5 –
6+| Thermocouple Channel 6 +
6-| Thermocouple Channel 6 –
7+| Thermocouple Channel 7 +
7-| Thermocouple Channel 7 –
8+| Thermocouple Channel 8 +
8-| Thermocouple Channel 8 –

Wiring

Digital Input

Analog Input

RTD

TC

Testing

• Please refer to the above figure for correct wiring. Make sure to disconnect all signal sources before wiring to avoid danger and damage to equipment. After checking and confirming that the wiring is correct, turn on the power for testing, and then the “Status” operating light will illuminate.
• Default configuration: Address 1, baud rate 9600bps, data format “n,8,1”; Users can change the settings by the configuration software.
• If the host computer only has an RS-232 interface, it can be connected to the 485 network through the RS-232/RS-485 converter; it is recommended to use a 485 converter with isolation to improve the reliability of the system;
• The A+ terminals of all devices on a bus are connected in parallel, and the B-terminals are connected in parallel, and the connection cannot be reversed. Also, the GND should connect then connect to the Communication GND. The RS485 network usually allows to connect maximum 32 devices. if the device is more than 32, then please use the RS485 repeater to extend it. The RS-485 network should use the shield twist cable, the shield should connect to GND independently.
• The RS485 network communication distance maximum is 1200m, when the communication baud rate is high will cause the communication distance short, in this case, please use the RS485 repeater.
• At the end of the RS485 network, if the communication quality is not good then usually should connect 120~300Ω/0.25W termination resistors. If the communication quality is good then no need to connect this resistor.
• The thermal resistance signal input can be connected in a 2-wire or 3-wire system, please refer to the above diagram; when the sensor is not far from the module and the resistance of the wire is negligible, a 2-wire system can be used (when connected to a two-wire system, PT – short to GND); if the distance is long, it should be connected in the 3-wire system; for unused channels, PTA, PTB and AGND should be shorted.
• The factory default refresh cycle of analog measurement data is 1.44S/time, 0.24S~2.4S, it can be set by yourself, and the interval is 0.24S;
• The longer the data update period, the better the stability of the data, and it is recommended to use 1-2S;

Setting

1. Connect USB to DAM I/O module through RS485 serial port
2. Connect DAM I/O module to PC by USB, and install USB Driver to the computer
3. Open the configuration software, and choose the correct “COM port” and “Model number” to start configuring.

Modbus Register
Modbus RTU Protocol
Digital I/O Modbus Register List
Model: DAM102, DAM104, DAM106, DAM108, DAM110, DAM112

Table 1: Digital Output, Function code 01/05/0F

Table 2: Digital Input, Function code 02

signal.
0001H| DI2| 2nd digital input:＝0 (0~0.5VDC) short/close, ＝1 (3~30VDC) Open/no signal.
0002H| DI3| 3rd digital input:＝0 (0~0.5VDC) short/close, ＝1 (3~30VDC) Open/no signal.
0003H| DI4| 4th digital input:＝0 (0~0.5VDC) short/close, ＝1 (3~30VDC) Open/no signal.

If the digital input=0, it means closed, if digital input=1, it means open or no signal

Table 3: Holding register, function code:03/10H

9C4AH

9C4BH

| DI1_Cnt| 1st DI 32 bytes pulse counter; 4 bytes, MSB first
---|---|---
9C4CH

9C4DH

| DI2_Cnt| 2nd DI 32 bytes pulse counter; 4 bytes, MSB first
9C4EH

9C4FH

| DI3_Cnt| 3rd DI 32 bytes pulse counter; 4 bytes, MSB first
9C50H

9C51H

| DI4_Cnt| 4th DI 32 bytes pulse counter; 4 bytes, MSB first

Table 4: Counter, Holding register, function code:03/10H

Above mentioned items are READ ONLY, below mentioned items can READ and WRITE.
9C42H| ADDR| Device Address; 1~247; 0 is the broadcast address.
9C43H| COM1| COM setting: high-order 8 bytes reserved.

The low-order bytes low 3 bytes baud rate: 0:115200; 1:57600; 2:38400; 3:19200; 4:9600;

5:4800; 6:2400; 7:1200

The lowest 3rd~7th bytes in the low-order bytes is data format:

00 stands for 10bits, equal to n,8,1;

50 stands for 11bits, Even-parity check: e,8,1; 58 stands for 11bits, Odd Parity Check: o,8,1; 20 stands for 11 bits, non parity,

2 is stop bit, n,8,2;

The default is 4, equal to 9600bps. (9600, 8.N.1)

9C44H| DO1-PUL| DO1 output type control: BIT15=1: Pulse Output control; BIT15=0: TTL.

Low-order 8 byte: Pulse Width(time): 1~250 = 0.1~25.0 seconds; Default

Value: 10 (one second)

---|---|---
9C45H| DO2-PUL| DO2 output type control, detail description as same as above DO1.
9C46H| DO3-PUL| DO3 output type control, detail description as same as above DO1.
9C47H| DO4-PUL| DO4 output type control, detail description as same as above DO1.
9C48H| DI Pulse Counter| Low-order 4 byte is the Pulse Counter:

BIT0=1, Enable the DI1 as a Pulse Counter, =0: Disable

BIT1=1, Enable the DI2 as a Pulse Counter, =0: Disable

BIT2=1, Enable the DI3 as a Pulse Counter, =0: Disable

BIT3=1, Enable the DI4 as a Pulse Counter, =0: Disable

9C49H| Function when

Power Failure

| Low-order 2 byte is the additional function when the power fails:

BIT0=1: Save the pulse counter value; BIT0=0 : Don’t save the pulse counter value; BIT1=1 : Keep the relay status;

BIT1=0: Don’t keep the relay status.

Analog/PT100 Input Register List
Model: DAM114, DAM116, DAM118, DAM120, DAM124

Table 1: Holding register, function code:03/06/10H

temperature
9C43H| AdVal[2]| 2nd PT100 ADC_Value, range:0-65535, for adjust the temperature
9C44H| AdVal[3]| 3rd PT100 ADC_Value ,range:0-65535, for adjust the temperature
9C45H| AdVal[4]| 4th PT100 ADC_Value ,range:0-65535, for adjust the temperature
9C46H| AdVal[5]| 1st AIN ADC_Value, range:0-65535, for adjust at site
9C47H| AdVal[6]| 2nd AIN ADC_Value, range:0-65535, for adjust at site
9C48H| AdVal[7]| 3rd AIN ADC_Value , range:0-65535, for adjust at site
9C49H| AdVal[8]| 4th AIN ADC_Value, range:0-65535, for adjust at site
9C4AH| AI1| The 1st Analog Input:

1.  If enable the Max/Min, then it will calculate the real value of the sensors.

2.  If disable the Max/Min:

a)  0～10000 correspond to 0～10V

b)  0～10000 correspond to 0～5V

c)  0～10000 correspond to 0～20mA

d)  0～10000 correspond to 4～20mA

9C4BH| AI2| 2nd Analog Input, detail description as same as above AI1.
9C4CH| AI3| 3rd Analog Input, detail description as same as
| | above AI1.
---|---|---
9C4DH| AI4| 4th Analog Input, detail description as same as above AI1.
9C4EH| PT1| 1st channel for measuring the temperature,

unit :0.1°C Int, the actual value=DATA/10, unit:°C

9C4FH| PT2| 2nd channel for temperature, detail description as same as above PT1.
9C50H| PT3| 3rd channel for temperature, detail description as same as above PT1.
9C51H| PT4| 4th channel for temperature, detail description as same as above PT1.
Above mentioned items are READ ONLY, below mentioned items can READ and WRITE.
9C52H| ADDR| Device Address; 1~247; 0 is the broadcast address.
9C53H| COM1| COM setting: high-order 8 bytes reserved.

The low-order bytes low 3 bytes baud rate: 0:115200; 1:57600; 2:38400; 3:19200; 4:9600;

5:4800; 6:2400; 7:1200

The lowest 3rd~7th bytes in the low-order bytes is data format:

00 stands for 10bits,equal to n,8,1;

50 stands for 11bits, Even-parity check: e,8,1; 58 stands for 11bits, Odd Parity Check: o,8,1; 20 stands for 11 bits, non parity,

2 is stop bit,n,8,2;

The default is 4, equal to 9600bps. (9600, 8.N.1)

9C54H| AIMode1| Analog input model1 setting, low-order 2 bytes 0:0-5V;

1:0-10V;

| | 2:0-20mA;

3:4-20mA;

Highest order byte b7=1 is enable the Max/Min; 0= disable

---|---|---
9C55H| AIMode2| AIN 2 Setting, as same as the AIMode1
9C56H| AIMode3| AIN 3 Setting, as same as the AIMode1
9C57H| AIMode4| AIN 4 Setting, as same as the AIMode1
9C58H| AdMax1| AIN1 Max Range, default: 5000
9C59H| AdMax2| AIN2 Max Range, default: 5000
9C5AH| AdMax3| AIN3 Max Range, default: 5000
9C5BH| AdMax4| AIN4 Max Range, default: 5000
9C5CH| AdMin1| AIN1 Min Range, default: 0
9C5DH| AdMin2| AIN2 Min Range, default: 0
9C5EH| AdMin3| AIN3 Min Range, default: 0
9C5FH| AdMin4| AIN4 Min Range, default: 0
9C60H| Pt_0C[1]| 1st PT100 input calibrated values in 0°C

Remark: To test the PT100 at 0°C, or connect to a 100R resistance to get the ADC_Value, then use this value to adjust the accuracy,

Default:4500

9C61H| Pt_0C[2]| 2nd PT100 input calibrated values in 0°C
9C62H| Pt_0C[3]| 3rd PT100 input calibrated values in 0°C
9C63H| Pt_0C[4]| 4th PT100 input calibrated values in 0°C
9C64H| Pt_50C[1]| 1st PT100 input calibrated values in 50°C

Remark: To test the PT100 at 50°C, or connect to a 100R resistance to get the ADC_Value, then use this value to adjust the accuracy.

9C65H| Pt_50C[2]| 2nd PT100 input calibrated values in 50°C
9C66H| Pt_50C[3]| 3rd PT100 input calibrated values in 50°C
9C67H| Pt_50C[4]| 4th PT100 input calibrated values in 50°C
---|---|---

If the PT100 temperature sensor cannot measure the correct value, then need to adjust it, for 0°C(Pt_0Cx) and 50°C(Pt_50Cx).
Thermocouple Input Modbus Register List
Model: DAM128

Table 1: Holding register, function code:03/06/10H

unit :0.1°C Int, the actual value=DATA/10, unit:°C

9C43H| AdVal[2]| 2nd channel for temperature, and detail description is the same as above
9C44H| AdVal[3]| 3rd channel for temperature, detail description as same as above
9C45H| AdVal[4]| 4th channel for temperature, detail description as same as above
9C46H| AdVal[5]| 5th channel for temperature, detail description as same as above
9C47H| AdVal[6]| 6th channel for temperature, detail description as same as above
9C48H| AdVal[7]| 7th channel for temperature, detail description as same as above
9C49H| AdVal[8]| 8th channel for temperature, detail description as same as above

Warranty

1. This equipment will be repaired free of charge for any material or quality problems within one year from the date of purchase.
2. This one-year warranty does not cover any product failure caused by man-made damage, improper operation, etc.

CONTACT

• Shenzhen Beilai Technology Co., Ltd
• Website：https://www.bliiot.com.

References

• BLIIOT Focus on IoT IIoT Gateways, 4G Edge Routers, Edge Computers, I/O Modules

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