Fuji Electric ALPHA5 Smart - Page 526

CHAPTER 13 RS-485 COMMUNICATIONS
13-38
Modbus RTU Communications
13
5-2. Monitoring cycle
A communications cycle example for writing the CONT signal to read monitored data is shown as
a communication method for starting operation and monitoring the state. The example assumes a
communications baud rate of 38400 bps and 11-bit characters.
5 ms
5 ms
5 ms
3.7 ms
2.3 ms
2.3 ms
3.7 ms
3.7 ms
2.3 ms
5 ms
5 ms
5 ms
Cycle
AmplifierMaster
Communication CONT signal write
01 10 0000 0002 04 0000**** **** (13 bytes)
01 10 0000 0002 41C8 (8 bytes)
Monitor data read (2 pcs.)
01 03 1006 0004 A0C8 (8 bytes)
01 03 08 ******** ~ **** (13 bytes)
Communication CONT signal write
01 10 0000 0002 04 0000**** **** (13 bytes)
01 10 0000 0002 41C8 (8 bytes)
32 ms