Control and monitor your devices anywhere with the Baudcom BD-8SER-IP Dry contact to ip converter. Featuring 8 channels (DI/DO/AI), this versatile module supports both digital and analog inputs plus relay outputs. It works over Ethernet or RS485, supporting industry-standard protocols like Modbus TCP, Modbus RTU, MQTT, and JSON, making it perfect for smart buildings, industrial automation, and IoT projects. With rugged design and wide operating temperature, it’s built for long-term reliability in demanding environments.
Dry contact to ip converter Perfect For:
✔ Industrial automation
✔ Building access & security control
✔ IoT remote monitoring
✔ Energy & environmental data collection
1. Functional characteristics
1. Supports eight DI/DO/AI channels and can be controlled remotely or locally.
2. AI supports 12-bit accuracy, and the data is adjusted to ensure accuracy.
3. It also supports the serial port server function to control external third-party RS485 devices over the network.
4. Support DI control DO function, using a pair of the converter through RS485 and Ethernet, can control each other, easy to use.
5. Support Modbus TCP, Modbus RTU, MQTT, JSON, HTTP and other communication modes.
6. Connect to various public clouds, send data in JSON format, and control delivery in JSON format.
7. Rich indicators: display DI, DO status, network status, data flow status, etc.
8. It can provide complete RS485 control instructions and Modbus RTU instructions, which is convenient for engineers to integrate development.
9. You can restore factory Settings with one click, including baud rate, station address, network configuration of communication module, etc.
Technical parameters
The controller communication mode supports RS485, Ethernet.
Supported model
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Communication medium
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Network interface
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Support protocol
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Instructions
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BD-8SER-IP
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Ethernet TCP UDP/RS485
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Ethernet
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Modbus TCP/ Modbus RTU/ JSON/ MQTT
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appearance
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dimension:
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L x W x H =9.2cm×19.7cm×2.5cm
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Serial port parameter
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485-IO Baud rate: The default baud rate is 115200bps, which can be changed by using the RemoteIO software or commands.
Data bit: 8 bits.
Check bit: No check, odd check, even check.
Stop bit: 1 bit
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software
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Network protocol:
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MODBUS TCP/MQTT/JSON/HTTP
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RS485 protocol:
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MODBUS RTU
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AI input form
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Current input: 4~20mA
Voltage input: 0~5V, 0~10V (need to customize)
Resistance input: 0~10K, resistance type temperature and humidity sensor, etc. (need to be customized)
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Power consumption (relay non-draw state)
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Running stable state: 30mA@12V
4G dial status: 60mA@12V
DO relay closed, DI input closed (maximum power consumption) : 300mA@12V
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Ethernet parameters
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Ethernet
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10/100M adaptive Ethernet can be connected
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Environmental requirement
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Operating temperature:
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-40~85℃
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Storage temperature:
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-45~165℃
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Humidity range:
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5~95%Relative humidity
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Application:
l Building/access control/security control system;
l Industrial automation System;
Internet of Things, remote meter reading, information collection, etc.
The dry contact IP converter (Ethernet interface) is used as an example. Figure shows the typical application connection. Connect the field input and output devices to the controller, and then connect the controller to the network via a network cable. Then the upper computer can send data to converter through Modbus TCP protocol to realize the query input device and control output device.