33 Topic(s)
The I/O bus is a common bus that delivers power, address information, and communication to all devices connected to the bus. The I/O bus is provided to the devices through the backplane in the terminal bases. The term I/O bus also denotes the chain of devices that are connected together.
Use the power budget to calculate the maximum number of devices that the power supply can supply. If more devices are used, additional power supplies must be added to the I/O bus.
The I/O bus imposes restrictions on the number of devices that can be connected to the bus and what type of devices that are allowed on certain positions.
The I/O bus consists of the following parts:
You install a terminal base on a horizontal DIN-rail prior to connecting it to its neighboring terminal bases.
The devices are designed mainly for installing on DIN rails in a cabinet.
The terminal bases are used for SpaceLogic devices that are based on the patented two-piece design. The terminal base provides the I/O bus to the electronics module installed on the terminal base as well as to the SpaceLogic device installed to the right (next terminal base in the chain).
The Schneider Electric EasyLogic and SpaceLogic hardware devices for the EcoStruxure BMS include terminal bases, PS-24V power supplies, Central IO modules, automation servers such as AS-P and AS-B servers, MP-C, MP-V, RP-C, and RP-V controllers, IP-IO and RP-IO I/O modules, RP controller expansion modules, remote control, KNX Modbus gateway, Bluetooth adapter, Wireless Adapter - Advanced, SpaceLogic Sensor devices, Advanced Display devices, and Operator Display devices.
It is important to perform the grounding correctly for the following reasons:
The Status LED on the front of the automation devices changes color and flashes to indicate the status of the device.