Industrial Networking: Serial to Ethernet

Number of Videos in Series: 18 Number of Credits that can be earned: 2 Price of Series: $29.95
  • Industrial Networking: Introduction to Networking

    Doug Bell introduces Chris Harris. Networks communicate in several ways including by wire, wireless, and fiber optics. Various standards such as RS-232, RS-422, RS-485 and Ethernet come with the...

  • Industrial Networking: Basics of RS-232

    The RS-232 standard allows for communication between two devices in either a master-slave or master-master configuration. A master-master configuration does not require the cables to be changed...

  • Industrial Networking: RS-232 Media and Hardware

    All types of connectors are found with RS-232 with no set standard, zip links are a solution especially in long distance (up to 50 feet) applications. DTE and DCE devices require different wiring...

  • Industrial Networking: Networking Protocol Basics

    A compatible wiring scheme does not mean two devices can communication with each other, they need the same language. In a network, there must be a device that produces a signal for the network to...

  • Industrial Networking: Basics of RS-422

    The RS-422 standard allows use with up to 11 devices and 4000 feet of wire. The standard is commonly confused with RS-485 and can even work with RS-485 devices. RS-422 is not widely...

  • Industrial Networking: Basics of RS-485

    RS-485 allows for connection of up to 32 devices and 4000 feet which can be extended with a repeater. Each device has its own station (node) address set by software. Multiple ports on a device allow...

  • Industrial Networking: RS-485 Media and Hardware

    RS-485 can be connected in a 2 or 4-wire configuration depending on the hardware of the device. Electrical noise causes problems when sending over long distances so grounded wire shielding and...

  • Industrial Networking: RS-232 to RS-485 Converter

    A RS-232 device with a node address can be put on a RS-485 network with proper convertors. Devices in a network can run from 1200 baud to 115 kbaud, however all devices must be running at the same...

  • Industrial Networking: Networking Protocols Demonstrated

    A protocol is the language that devices speak with a given pattern. The devices send on/off pulses grouped into bytes, the first of which in a MODBUS string, says which device it is speaking to....

  • Industrial Networking: Basics of Ethernet

    RS-485 is basically only a master-slave situation unless complicated token passing scheme is used. Ethernet allows for multiple devices to initiate a message and share another device...

  • Industrial Networking: Seven Layers of Ethernet

    The term client-server is used over master-slave because of different roles devices can take on. The OSI Seven Layer model where Ethernet is explained graphically describing the layers a message has...

  • Industrial Networking: Ethernet Physical Layer

    Hardware cable with speeds up to 1 Gigabit/second, pricey fiber optics and wireless are types used in the physical layer. Ethernet hubs broadcast the same signal to all devices connected to it while...

  • Industrial Networking: Ethernet Data Link Layer

    The operating system broadcasts an ARP message asking for each device’s MAC address because only the IP address is given. Ethernet networks use a CSMA/CD protocol where devices wait to send...

  • Industrial Networking: Ethernet IP Addressing

    IP addresses, given statically or by a server, are intended to logically separate a network. The subnet mask determines which part of the IP address is the network number or node number. A DNS...

  • Industrial Networking: Ethernet TCP vs UDP

    TCP and UDP belong in the transport layer of the Seven Layer model. In TCP, when a device sends out a message the other device sends a message back, while in UDP the message is sent out with no...

  • Industrial Networking: Ethernet Messaging Basics

    The operating system creates a protocol (MODBUS) message from what the operator asks. Then, using the TCP or UDP, the operating system adds the TCP/UDP header. Finally, the IP address and MAC address...

  • Industrial Networking: Ethernet Monitoring Messages

    Wireshark helps troubleshoot and set up an Ethernet network. Using a mirrored port on a managed switch, Wireshark monitors the traffic going through the mirrored port. From this the user can see what...

  • Industrial Networking: Ethernet Security

    Industrial control products need to be protected with a firewall and VPN just like a computer. Never put a device directly on the internet. A VPN router allows for a secure connection for...