Difference between revisions of "MODBUS"
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'''Modbus''' is a serial communication protocol developed by Modicon published by Modicon® in 1979 for use with its programmable logic controllers (PLCs). In simple terms, it is a method used for transmitting information over serial lines between electronic devices. The device requesting the information is called the '''Modbus Master''' and the devices supplying information are '''Modbus Slaves'''. In a standard '''Modbus''' network, there is one Master and up to 247 Slaves, each with a unique Slave Address from 1 to 247. The Master can also write information to the Slaves. Read more about '''MODBUS''' [http://http://www.simplymodbus.ca/faq.htm '''here''']. | '''Modbus''' is a serial communication protocol developed by Modicon published by Modicon® in 1979 for use with its programmable logic controllers (PLCs). In simple terms, it is a method used for transmitting information over serial lines between electronic devices. The device requesting the information is called the '''Modbus Master''' and the devices supplying information are '''Modbus Slaves'''. In a standard '''Modbus''' network, there is one Master and up to 247 Slaves, each with a unique Slave Address from 1 to 247. The Master can also write information to the Slaves. Read more about '''MODBUS''' [http://http://www.simplymodbus.ca/faq.htm '''here''']. | ||
Revision as of 17:48, 19 December 2014
Modbus is a serial communication protocol developed by Modicon published by Modicon® in 1979 for use with its programmable logic controllers (PLCs). In simple terms, it is a method used for transmitting information over serial lines between electronic devices. The device requesting the information is called the Modbus Master and the devices supplying information are Modbus Slaves. In a standard Modbus network, there is one Master and up to 247 Slaves, each with a unique Slave Address from 1 to 247. The Master can also write information to the Slaves. Read more about MODBUS here.
General
How is ModBus used with DDUtil? Just about any hardware can be controlled using ModBus here are a few examples.
- Generate TTL BCD band data to band switch amps, antenna switches, low-pass filters.
- Generate Voltage Level band data.
- Split a single key-line into multiple key-lines for transverters.
- Generate sequencing events for transverters.
- Select one of multiple antennas using band data or macros.
- Monitor (scan) digital or analog lines for predefined changes and then operate on these changes.
- Monitor a temp sensor and turn a cooling fan on/off.
- Monitor SWR and open the PTT line if a predetermined value is reached.
- Monitor the PTT line and turn on an On-Air sign.
- Activate/control remote tuners
