Dwyer UXF3 - Manual (Page 5)

- 1 -
1. COMMUNICATION FUNCTIONS
1.1 General
ƒ This instrument provides a communication function by RS-485 interface or RS-232C interface, by which it can
transmit and receive data to and from host computer, programmable controller, graphic display panel, etc.
ƒ When using the RS-485 interface, the communication system consists of master station and slave stations. Up
to 31 slave stations (this instrument) can be connected per master station.
Note that, because the master station can communicate with only only one slave station at a time, a party to
communicate with must be specified by the “Station No.” set at each slave station.
ƒ When using the RS-232C interface, the communication system is comprised of a master station and slave
stations. One slave station (this instrument) can be connected to one master station.
ƒ In order that the master station and slave station can communicate, the format of the transmit/receive data must
coincide. With this instrument, communication data format is determined by the MODBUS protocol and M-
Flow protocol (proprietary).
ƒ Please use an RS-232C œ RS-485 converter in case of designating a personal computer or other devices which
have an RS-232C interface as a master station.
[RS-232C œ RS-485 converter] (recommended article)
Type: K3SC-10 (isolated type)/OMRON Corporation
Bulletin F-107-UXF3-S