Communication protocols in PLC
Advanced version of Standard ethernet
Developed by Rockwell Automation
Developed by Rockwell Automation
Similar protocols will be as follows
Profinet
ControlNet
DeviceNet
RAPIEnet
Modbus
Protocol that is used for transmitting information over a serial lines or ethernet, based on master-slave technology.
Protocol developed by Modicon (now schneider electric)
Two types of devices
Modbus master
Device which request information
Modbus Slaves
Devices which provide the information
Types
Modbus RTU
Modbus ASCII
Modbus TCPIP
Profibus
Similar to Modbus RTU, which also works on serial line communication.
Owned by Siemens Automation
Pressure Sensor Family
1. Pressure Transmitter
2. Pressure Sender
3. Pressure Switch
4. Pressure Transducer
Switchgear
Stanley Products (Switchgear)
Sheet Metal Front Handle Operating Switchgear
Sheet Metal Front Handle Operating Switchgear Isolator Switch
Change Over Switches [Powder Coating] Sheet Metal Body
Change Over Switches [Hammer Finishes] Cast iron Body
Bus Bar Chamber [Powder Coating]
Distribution Fuse Board [Powder Coating]
Plug, Socket & Conduit Box [Powder Coating]
Porcelain Kit Kat Fuse
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