BQ351 Modbus IO Device with 8 Digital Input and 8 Relay Output

Modbus IO Device with 8 Relay Output and 8 Digital input. You can control relay with Modbus RTU commands also you can read all states from Modbus. Device supports Modbus RTU commands. Also you can read status of Digital inputs. Digital inputs of device are dry contact.

Device works with 24V DC. Relay outputs have 5A capacity. Panasonic relays are used (Relay maximum capacity 5A 277V AC / 3A 30V DC) Relays has “Normaly Open” Contacts.

Device supports Modbus RTU protocol over RS485. Factory default communication speed is 9600 baud; but you can change this baudrade. Device modbus address can adjustable. If you will use between 1-15 adsress; you can change from switchs on device. Also you can adjust between 1 and 255 with device settings software or from modbus.

Device Properties
  • Product Code: BQ351
  • Product: Modbus Digital IO Device with 8 Relay Output and 8 Digital Input
  • Power: 24V DC 1.5A
  • Output: 8 Relay Output (Panasonic 5A 277V AC / 3A 30V DC)
  • Input: 8 Dry Contact Digital Input
  • Protocol: RS485 Modbus RTU
  • Enclosure: Plastic Rail Type Enclosure (Also suitable for wall mounth)
  • Terminal: Plug-in Terminal (3.81mm)
  • Dimensions: 157mm x 90mm x 60mm
Documents and Softwares

Product Catalog

This document help you for fast start.

Modbus Device Manager

Software for making settings of modbus IO devices
Other Pictures of Device
Blog Posts About Product and Product Family
Modbus Device Manager

Modbus Device Manager Application

BQTEK Modbus Device Manager Software BQTEK Modbus Device Manager Software helps you for making settings of Modbus IO Devices. It can be used for this devices: BQ360 BQ352 BQ351 All BQ370 and BQ370N devices You change modbus address and some sensor details with this application Modbus Device Manager Software for making settings of modbus IO…

Modbus Cabling

Quick tutarial for RS485 cabling (Modbus Cabling)

A quick tutarial for RS485 (Modbus) cabling RS485 is a serial transmission standard and RS485 cabling is important. An important advantage of RS485 is that you can put several RS485 devices on the same bus. MODBUS is a protocol works on RS485 and between a host (master) and devices (slaves) to access the configuration of the…

Modbus Poll

Modbus Poll – Modbus Testing Software

Modbus Poll – Usefull Modbus Software Modbus Poll is a Modbus master simulator designed primarily to help developers of Modbus slave devices or others that want to test and simulate the Modbus protocol. With the multiple document interface you can monitor several Modbus slaves and/or data areas at the same time. For each window you…