Hach Met One 6000 Series - Particle Counter Communication Protocols

32
Operation
4.2 Particle counter communication
Each Met One 6000 particle counter is assembled with one of the following
communications formats:
• RS485 communications—Modbus RTU (section 4.2.1 on page 32) or FXB protocol
(Appendix B on page 63)
• Ethernet with ModbusTCP protocol (section 4.2.2 on page 34)
• Pulse output (section 4.2.3 on page 36)
• Analog output (section 4.2.4 on page 37)
• Wireless (section 4.3 on page 37)
• RS232 serial output (Appendix B on page 63)
4.2.1 RS485 serial output with Modbus RTU protocol
The RS485 serial network circuit provides communications for a maximum of 32 remote
counters and a control computer. Only one counter can transmit data at a time.
Each counter must have a unique instrument address. Refer to Set the instrument
address—RS485 on page 33 for instructions on setting the instrument address.
Figure 22 Setup utility program—wireless units