Industrial Protocols Flashcards
Which layer are used on Modbus Serial?
Layer 1 and 2
* Layer 1: RS-232/RS485
* Layer 2: Serial Line Client-Server
Whick layer are used on Modbus/TCP?
Layer 4, 3, 2 and 1
* TCP: Modbus messaging
* IP
* Ethernet
* Physical
Which ports are used by ModbusTCP?
TCP Port 502
PROFIBUS
Is a standard for field bus communication in automation technology. (developed by Siemens)
PROFIBUS
Process Field Bus
Is a standard for field bus communication in automation technology. (developed by Siemens)
CIP
Common Industrial Protocol
Is an industrial protocol fro industrial automation applications (formerly Control & Information Protocol)
Developed by Rockwell Automation
Supported by Open DeviceNet Vendors Association (ODVA)
EthernetIP
Uses two communications mechanisms and two ports
Impicit Messaging
* Port 2222
* Producer/Subscriber
* Typically I/O messages
* Uses UDP Multicast and Unicast for I/O transfer
Explicit Messaging
* Port 44818
* Client Server - HMI to PLC
* Uses TCP Unicast for administration and data transfer
OPC stands for:
Open Platform Communications
Protocol which specifies the comunication of real-time plant data between control devices from different manufacturers
MODUBS
A series of standards and specifications for industrial telecomunication (Originally OLE for Process Control)
OPC
A series of standards and specifications for industrial telecomunication (Originally OLE for Process Control)
OPC
An application layer protocol that is transfered inside a TCP/IP Packet
Ethernet/IP
An Industrial procotol commonly used for industrial automation applications (Common Industrial Protocol)
CIP
A standard for field bus communication in automation technology
PROFIBUS
Which protocol is used for remote I/O communications?
MODBUS
Which communication standar was developed by an industrial automation industry task force and was originally refferred to as OLE (Object Linking and Embedding) for process Control?
OPC
True of False
Ethernet/IP uses two communications mechanisms and two ports
True
Which protocl uses UDP and TCP for data transfer and is commonly used for control applications?
Ethernet/IP
True or False
OPC Classic is difficult to firewall due to required open ports
True
