A Dynamic Force in

IndustrialAutomation

and

Controls

Bulkhead Pass-Thru Page 127 Machine mount Switch Page 139 Overmolded Cordsets Pages 122-123 Field Attachable Connector Page 129

COMPONENTS AND ELEMENTS OF ETHERNET SYSTEM

Network Interface Gateways The scanner resides in a controller whether it is a PLC or PC, and provides a network connection. The scanner exchanges a data table, which is loaded with the various values of the inputs and outputs, with the logic controller to solve the various logical expressions. Simultaneously the operation of the master and/or slave protocols is completed. The logical expressions are then re-exchanged with the data table for communication out to the various nodes and I/O residing on the network. The scanner generally supports all standard baud rates of the network. Seamlessly transfer data in real time between dissimilar network protocols. Active I/O Modules Control Engine Active blocks serve as a gateway to enable non network input and output devices to send and receive data over the network. The actual I/O send a standard electrical signal via a BradConnectivity quick disconnect cordset, which is then converted to the appropriate Ethernet protocol for network transmission. Active I/O Devices PC “soft controllers” or Plcs can act as the main control engines, taking the current I/O status off the network and solving these operations through the main control program. The new status of the I/O is then updated via the network interface to the actuators, starters and interface panels. Many times a central control engine acts as the DeviceNet “master” which initiates and controls many of the messaging sequences of the network. These are devices which incorporate their own Ethernet transceiver and physical network connections. Detailed information can be received back from the I/O devices with a sensor being able to report back such information as distance measurements, power status, last-time to maintenance, etc.

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