45 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.
Input modules support a single electrical type, such as digital or universal inputs. The available input modules include the following:
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:
The RTD-DI-16 module is an RTD temperature, RTD resistive, digital, counter, or resistive input, 16-channel I/O module. Each channel has a dedicated two-color (red and green) status LED.
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 DI-16 Central IO module is a digital input, 16-channel I/O module. Each channel has a dedicated two-color (red and green) status LED that provides local monitoring of digital and counter input types.
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).