BSM-0404RB/0808RB/1616RB/1032RB series industrial grade Modbus RTU remote I/O control module

描述

I. Product Overview

The BSM series industrial communication control module is a multifunctional and high-performance industrial automation control equipment that uses standardModbus RTU communication protocol【8†L3】. The biggest feature of the product isSimultaneously equipped with RS232 and RS485 dual serial port interfaces, and both interfaces can be used simultaneouslySupports wide voltage DC 9-48V power supply (DC 12-48V is required for modules with analog functions) [7 † L3-L4] [7 † L7].

module adopts a semi transparent engineering plastic shellTranslucent engineering plastic shell, which can be installed on thestandard DIN35 guide railUp to 【 8 † L5 】. Each channel has oneLED indicator lightConvenient for on-site status monitoring [8 † L6]. The default communication baud rate is 9600bps, which can be modified through software and can reach up to115200bps【7†L8】. Communication response time is extremely fast, only 9600bps15msat 9600bps and only3ms【7†L9】.

The BSM series is widely applicable tosolenoid valve control, access control, street light control, irrigation control, meteorological monitoring, smart homeVarious industrial automation and IoT application scenarios [10 † L3-L4].

2, Model Explanation

2.1 BSM-1600RB -16 channel switch input module

Product positioning:Pure input industrial remote I/O module

Product Description: How to Translate

BSM-1600RB provides16 channel switch signal acquisition channelThere is no output channel [6 † L3]. Suitable for industrial automation scenarios that require a large amount of external switch signals, such as sensor signal acquisition, equipment status monitoring, etc. Each input channel is compatible with both high and low level signal input methods [8 † L4].

Core parameters:

• Digital input:Route 16

• Digital output: None [6 † L3]

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L3 】

• Shell type: Type A [6 † L3] [9 † L3]

• Input signal type: switch signal (compatible with high and low levels) 【 8 † L4 】

• Input voltage range: DC 9-24V [7 † L5]

Applicable scenarios:Industrial site equipment status monitoring, sensor signal acquisition, PLC extended input, security alarm signal acquisition

2.2 BSM-0404RB -4-In 4-Out Relay Module ⭐ Recommended by the store manager

Product positioning:Entry level relay control module, the king of cost-effectiveness

Product Description: How to Translate

BSM-0404RB is the most popular entry-level relay control module, providing4-channel switch inputAnd4-channel relay output【6†L4】. The relay output isDry contact signal, withstand voltage250V, allowing maximum passing current5A【7†L11】, Can directly control AC or DC loads [8 † L9-L10]. Compact in size (Type A shell) 【 9 † L3 】, fully functional, making it the preferred choice for industrial control and IoT projects.

Each relay output channel hasIndependent one open and one close contact point(Terminal 3 is the common terminal, terminal 2 is the NO normally open contact, and terminal 4 is the normally closed contact) [8 † L9-L10]. Multiple output channels share a common COM terminal and are all normally open contacts [9 † L3].

Core Parameters:

• Digital Input:4-channel

• Digital output:4-channel relay output(Dry contact, 250V/5A) 【 6 † L4 】 【 7 † L11 】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L4 】

• Shell type: Type A [6 † L4] [9 † L3]

Applicable scenarios:Small automation control, access control, street light control, solenoid valve drive, smart home, irrigation control

2.3 BSM-0404RB-2AD-2DA -4-in-4-out relays+2-channel analog input+2-channel analog output

Product positioning:Industrial grade IO module with analog function

Product description:

BSM-0404RB-2AD-2DA adds to BSM-0404RBAnalog input and output functions. Provide2-channel analog input(optional 0-10V or 0-20mA) and2-channel analog output(DA1 is 0-10V, DA2 is 0-20mA) 【 6 † L5 】. adopt12 bit high-precision ADCEnsure the accuracy of analog data acquisition [2 † L3].

Core Parameters:

• Digital Input:4-channel

• Digital Output:4-channel relay output【6†L5】

• Analog input:2 routes(0-10V or 0-20mA) 【 6 † L5 】

• Analog output:2 routes(DA1 is 0-10V, DA2 is 0-20mA) 【 6 † L5 】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L5 】

• Shell type: Type A [6 † L5]

Applicable scenarios:Industrial automation scenarios that require analog data acquisition (such as temperature, pressure, and lighting sensors) and analog output control

2.4 BSM-0404E -4-In 4-Out Relay/Transistor+Ethernet Module

Product positioning:Industrial IO module with Ethernet interface

Product Description: How to Translate

BSM-0404E adds to BSM-0404RBEthernet interface, provide4-channel switch inputAnd4-channel output(Optional relay or transistor output type) 【 6 † L8 】. The addition of the network port enables the module to directly access the LAN or the Internet to realize remote monitoring and control, which is an ideal choice for Internet of Things applications.

Core Parameters:

• Digital Input:4-channel

• Digital output:4-channel(Optional relay dry contact/NPN type transistor) 【 6 † L8 】

• Communication interface: 1-channel RS232+1-channel RS485+Network port(Can be used simultaneously) 【 6 † L8 】

• Shell type: Type A [6 † L8]

Applicable scenarios:Internet of Things projects, intelligent buildings, remote device monitoring that require network remote control

2.5 BSM-04 10RB -4-in-10 out relay/transistor module

Product positioning:Multi output Control Module

Product Description:

BSM-0410RB provides4-channel switch inputAnd10 channel output(Optional relay or transistor output type) 【 6 † L6 】. There are many output channels, which are suitable for scenarios where multiple execution devices need to be controlled.

Core parameters:

• Digital input:4 channels

• Digital output:10 channels(Optional relay dry contact/NPC type transistor) 【 6 † L6 】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L6 】

• Shell type: Type A [6 † L6] [9 † L5]

Applicable scenarios:Multi channel device control, intelligent lighting system, irrigation control system, stage lighting control

2.6 BSM-0808RB -8-in 8-out relay module

Product positioning:Balanced industrial IO module

Product description:

BSM-0808RB is an industrial grade IO expansion module Modbus module, integrated with8-channel switch inputAnd8-way relay output【6†L9】. Input/output point balance, supports RS232/RS485 dual serial communication, compatible with Modbus RTU protocol. B-type shell design [9 † L4] provides more wiring space.

Core Parameters:

• Digital Input:8-way

• Digital Output:8-way Relay Output(Dry contact, 250V/5A) 【 6 † L9 】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L9 】

• Shell type: Type B [6 † L9] [9 † L4]

Applicable Scenarios:Industrial automation control, remote switch control, data acquisition, Remote start stop of equipment, production line control

2.7 BSM-0816RB -8-in 16 out relay/transistor module

Product positioning:Multi output Medium sized Control Module

Product Description:

BSM-0816RB provides8-channel switch inputAnd16 channel outputThe output type can be selected as relay or transistor [6 † L10]. 16 output channels can simultaneously control a large number of external devices, suitable for medium-sized automation control systems.

Core parameters:

• Digital input:8 channels

• Digital output:16 channels(Optional relay dry contact/PNP type transistor) 【 6 † L10 】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L10 】

• Shell type: Type B [6 † L10] [9 † L4]

Applicable scenarios:Medium sized automation control systems, intelligent building control, production line equipment control, intelligent warehousing

2.8 BSM-1616RB -16 in 16 out relay/transistor module

Product positioning:Large balanced industrial IO module

Product description:

BSM-1616RB is the BSM series with the most points The balanced module provides16 switch inputsAnd16 outputsThe input and output points are completely equivalent [6 † L11]. Suitable for complex industrial automation scenarios that require a large amount of signal acquisition and equipment control.

Core Parameters:

• Digital Input:16 Channels

• Digital Output:16 Channels(Optional relay dry contact/PNP type transistor) 【 6 † L11 】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L11 】

• Shell type: Type B [6 † L11] [9 † L4]

Applicable Scenarios:Large industrial automation control, data acquisition systems, complex equipment Linkage control, intelligent factory

2.9 BSM-1104-8AD-2DA -11 inputs, 4 outputs, 8 analog inputs, 2 analog outputs

Product positioning:Industrial module with high analog acquisition function

Product description:

BSM-1104-8AD-2DA provides11 switch inputs, 4 outputs(optional relay or transistor),8 analog inputs(0-10V or 0-20mA), and2 analog outputs (0-10V) 【6†L12】. There are many analog input channels, which are suitable for scenarios that require a large amount of analog signal acquisition.

Core parameters:

• Digital input:Route 11

• Digital output:4 routes(Optional relay dry contact/NPN type transistor) 【 6 † L12 】

• Analog input:Route 8(0-10V or 0-20mA) [6 † L12]

• Analog output:2 routes (0-10V) 【6†L12】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L12 】

• Shell type: Type B [6 † L12] [9 † L4]

Applicable scenarios:Multi channel sensor data acquisition (temperature, pressure, flow rate, lighting, etc.), environmental monitoring system

2.10 BSM-1216E -12 in 16 out+Ethernet module

Product positioning:Large point control module with network port

Product Description: How to Translate

Provided by BSM-1216E12 channel switch inputAnd16 output channels(Optional relay or transistor), and equipped withEthernet interface【6†L13】. With the addition of the network port, the module can directly access the LAN or Internet to achieve remote monitoring and control.

Core parameters:

• Digital input:Route 12

• Digital output:Route 16(Optional relay dry contact/NPN type transistor) 【 6 † L13 】

• Communication interface: 1 RS485 channel+Ethernet port【6†L13】

• Shell type: Type B [6 † L13]

Applicable scenarios:Medium to large scale automation systems, intelligent buildings, and remote device monitoring that require network remote control

2.11 BSM-0404E-8AD-2DA -4 inputs, 4 outputs, 8 analog inputs, 2 analog outputs, and network ports

Product positioning:Fully functional industrial IO module

Product Description: How to Translate

BSM-0404E-8AD-2DA is one of the most comprehensive modules in the BSM series, integratingSwitching input/output, Analog quantity acquisition, Analog outputAndEthernet communicationIntegrated into one 【 6 † L14 】. Provide 4 switch inputs, 4 outputs, 8 analog inputs (0-10V or 0-20mA), 2 analog outputs (0-10V), and equipped with network ports.

Core parameters:

• Digital input:4 routes

• Digital output:4 routes(Optional relay dry contact/NPN type transistor) 【 6 † L14 】

• Analog input:Route 8(0-10V or 0-20mA) [6 † L14]

• Analog output:2 routes (0-10V) 【6†L14】

• Communication interface: 1 RS232+1 RS485+Ethernet port(Can be used simultaneously) 【 6 † L14 】

• Shell type: Type B [6 † L14]

Applicable scenarios:Industrial automation projects that require comprehensive functionality, IoT gateways, and intelligent factory data collection and control

2.12 BSM-0604RB-4AD-2DA -6 inputs, 4 outputs, 4 analog inputs, and 2 analog outputs

Product positioning:Medium sized analog function module

Product Description: How to Translate

Provided by BSM-0604RB-4AD-2DA6-way switch input, 4-channel output(Optional relay or transistor)4-channel analog input(0-10V or 0-20mA) and2-channel analog output (0-10V) 【6†L15】. C-shaped shell design [9 † L5], suitable for medium-sized control systems.

Core parameters:

• Digital input:Route 6

• Digital output:4 routes(Optional relay dry contact/NPN type transistor) 【 6 † L15 】

• Analog input:4 routes(0-10V or 0-20mA) [6 † L15]

• Analog output:2 routes (0-10V) 【6†L15】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L15 】

• Shell type: C-type [6 † L15] [9 † L5]

Applicable scenarios:Medium sized industrial automation, environmental monitoring and control, HVAC control

2.13 BSM-0016RB -16 output module

Product positioning:Pure output control module

Product Description: How to Translate

Provided by BSM-0016RB16 output channels(Optional relay or transistor output type), no input channel [6 † L16]. Suitable for scenarios where only external devices need to be controlled without the need to collect signals.

Core parameters:

• Digital input: None

• Digital output:16 channels(Optional relay dry contact/NPN type transistor) 【 6 † L16 】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L16 】

• Shell type: C-type [6 † L16] [9 † L5]

Applicable scenarios:Large equipment centralized control, intelligent lighting system, multi-channel valve control

2.14 BSM-2324RB -23 in 24 out large point module

Product positioning:Large industrial control module

Product Description: How to Translate

BSM-2324RB is one of the largest modules in the BSM series, providing23 channel switch inputAnd24 output channels(Optional relay or transistor) 【 6 † L17 】. D-type shell design [9 † L6], suitable for large industrial automation control systems.

Core Parameters:

• Digital Input:23 Channels

• Digital Output:Route 24(Optional relay dry contact/NPN type transistor) 【 6 † L17 】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L17 】

• Shell type: D-type [6 † L17] [9 † L6]

Applicable scenarios:Large scale industrial automation systems, complex equipment linkage control, intelligent factories

2.15 BSM-1032RB -10 in 32 out large output module

Product positioning:Large output point control module

Product description:

BSM-1032RB provides10 switch inputsAnd32 output channels(Optional relay or transistor) 【 6 † L18 】. The number of output channels is extremely large, suitable for scenarios that require controlling a large number of external devices.

Core parameters:

• Digital input:Route 10

• Digital output:Route 32(Optional relay dry contact/NPN type transistor) 【 6 † L18 】

• Communication interface: 1 RS232+1 RS485 (can be used simultaneously) 【 6 † L18 】

• Shell type: D-type [6 † L18] [9 † L6]

Applicable scenarios:Large intelligent lighting system, large irrigation control system, stage lighting control, large equipment cluster control

2.16 BSM-22222E -22 in 22 out+network port module

Product positioning:Large point balancing module with network port

Product Description: How to Translate

Provided by BSM-22222E22 channel switch inputand22 output channels(Optional relay or transistor), and equipped withEthernet interface【6†L19】. The input and output points are completely equal, and it also has network communication capabilities.

Core Parameters:

• Digital Input:Route 22

• Digital output:Route 22(Optional relay dry contact/NPN type transistor) 【 6 † L19 】

• Communication interface: 1 RS232 channel+Ethernet port【6†L19】

• Shell type: D-type [6 † L19]

Applicable scenarios:Large industrial automation systems, smart factories, and remote equipment monitoring that require network remote control

3, General Technical Specifications

4, Communication Protocol

The BSM series modules adopt standardModbus RTU communication protocol【8†L3】, Supports the following features:

• Protocol standards:Modbus RTU【8†L3】

• Data format:1 start bit, 8 data bits, 1 stop bit, no checksum (configurable)

• Communication interface:RS232 and RS485 can be used simultaneously [8 † L7]

• Connectable devices:Industrial control touch screen, PC upper computer, microcontroller Arduino, Raspberry Pi, etc. [8 † L3]

• Communication response time:Extremely fast response [7 † L9]

Communication parameter default values:

• Baud rate: 9600bps

• Station number: 1

• Data bit: 8

• Stop bit: 1

• Check bit: None

V. Wiring instructions

5.1 Power supply wiring

The module adopts a wide voltage DC 9-48V power supply, and modules with analog input or output functions need to use DC 12-48V power supply [7 † L3].

5.2 Switching input wiring

The voltage range of the switch signal input is DC 9-24V [8 † L10]. The S/S terminal is the common terminal for switch input signals [8 † L10]:

• When the S/S terminal is connected correctlyThe input signal isLow level active【8†L10】

• When the S/S terminal is negative: Input signal isHigh level active【8†L10】

NPN switch signal input wiring:【8†L10】

• Sensor signal connected to X1 Xn terminal

• S/S terminal connected to VCC

• Suitable for NPN sensors (such as proximity switches, photoelectric switches)

PNP switch signal input wiring:【8†L10】

• Sensor signal connected to X1 Xn terminal

• Connect the S/S terminal to GND

• Suitable for PNP sensors

5.3 Relay output wiring

The output of the switch quantity relay is a relayDry contact signal, withstand voltage250V, allowing maximum passing current5A【8†L9】【7†L11】.

Each output channel hasIndependent one open and one close contact point【8†L9】:

• Terminal 3Output Common Terminal (COM)

• Terminal 2NO normally open contact

• Terminal 4NC normally closed contact

Multiple output channels share a common COM terminal and are all normally open contacts [9 † L3].

Relay output controls AC load:【8†L9】

• Live wire (L) → Relay common terminal (COM)

• Relay normally open contact (NO) → load → neutral wire (N)

Relay output controls DC load:【8†L9】

• Positive pole of power supply (+V) → common terminal of relay (COM)

• Relay normally open contact (NO) → load → negative terminal of power supply (GND)

5.4 Transistor output wiring

The transistor output adoptsNPN type open collector output modeDC withstand voltage30VThe maximum allowable passing current is500mA【9†L5】. Multiple output channels share a common COM terminal, and theThe common terminal must be connected to GND【9†L5】.

Transistor output controls DC load:【9†L5】

• Positive pole of power supply (+V) → load → transistor output terminal (Y)

• COM terminal → negative terminal of power supply (GND)

6, Shell size

The BSM series offers four shell sizes to meet different point requirements [9 † L3-L6]:

7. Application Scenario Explanation

The BSM series modules are suitable for various industrial automation and IoT scenarios [10 † L3-L4]:

1. Electromagnetic valve control

• Directly drive solenoid valve through relay output

• Suitable for fluid control, pneumatic systems, water treatment and other scenarios

2. Access control system

• Switch input collects door magnetic and exit button signals

• Relay output controls electric locks and access control controllers

3. Street lights/lighting control

• Multi channel relay output controls street lamps or indoor lighting

• Can be connected to a photosensitive sensor for automatic control

• BSM-1032RB (32 outputs) is particularly suitable for large lighting systems

4. Irrigation control system

• collects soil moisture sensor signals (analog input model)

• Relay output controls solenoid valves for automatic irrigation

5. Meteorological monitoring

• Analog input collects sensor data such as temperature, humidity, wind speed, rainfall, etc.

• BSM-1104-8AD-2DA (8 analog inputs) is particularly suitable for multi-sensor weather stations

6. Smart home

• collects signals such as door magnets, infrared, smoke alarms, etc.

• 526] VIII. Model Comparison Summary Table

8, Model Comparison Summary Table

9. Selection Guide

Choose according to functional requirements:

• Only requires signal acquisition (pure input)→BSM-1600RB(16 channels, highest cost performance)

• Only requires control equipment (pure output)→BSM-0016RB(16 channels output)

• Entry level control, preferred for cost-effectiveness → BSM-0404RB  ⭐ (4-In 4-Out Relay)

• Input/Output Balance, Strong Universality→BSM-0808RB(8-In 8-Out)

• Large Point Balance Control→BSM-1616RB(16 In 16 Out) orBSM-22222E(22 in, 22 out+network port)

• Multiple output channel requirements→ BSM-0410RB(4 in and 10 out)BSM-0816RB(8 in and 16 out) orBSM-1032RB(10 in, 32 out)

• Analog quantity acquisition is required→ BSM-1104-8AD-2DA(8-channel analog input) orBSM-0404RB-2AD-2DA(2-channel analog input)

• requires network remote control→BSM-0404E, BSM-1216E, BSM-0404E-8AD-2DAorBSM-22222E

Choose according to housing size:

• Type A (compact)→ entry-level models with fewer points

• B-type (medium)→ conventional models with medium points

• C-type (larger)→ models with more points

• D-type (maximum)→ high-end models with more points

X. Summary

BSM series industrial grade Modbus RTU remote I/O control module, withdual serial ports for simultaneous communication, wide voltage power supply, standard Modbus protocol, DIN35 rail installationBy leveraging core advantages, we cover a full range of product lines from 4 to 32 outputs. Whether it is simple switch control or complex analog acquisition and network remote control, the BSM series can provide suitable solutions.

product has been widely used in many fields such assolenoid valve control, access control, street light control, irrigation control, meteorological monitoring, smart homeWaiting for many fields 【 10 † L3-L4 】. For more product details or customized solutions (such as special communication protocols, customized casings, etc.), please feel free to consult the supplier.