Omron K3HB-R User Manual

1-2
Communications Method Section 1-1
CompoWay/F
Communications
1-1 Communications Method
1-1-1 CompoWay/F Communications Protocol
CompoWay/F is OMRON's unified protocol for general purpose serial commu-
nications. Featuring a unified frame format and commands that are compliant
with FINS, which has a record of successful use with OMRON programmable
controllers, CompoWay/F makes communications easy between multiple
components and a computer.
FINS (Factory Interface Network Service)
This is a protocol for message communications between controllers on an
OMRON factory automation network.
Supplement The communications function is used by creating a program on the host com-
puter. As such, the explanations in this chapter are from the perspective of the
host computer.
For example, “Read/Write” refers to the host computer reading or writing to
the K3HB.
1-1-2 Communications Specifications
Transfer connection: Multi-point
Communications method: RS-485 or RS-232C (half duplex)
Synchronization method: Start-stop
Baud rate: 9.6k, 19.2k, 38.4k bit/s
Send code: ASCII
Data length: 7 or 8 bits
Stop bit length: 1 or 2 bits
Error detection: Vertical parity (none, even, or odd)
BCC (Block Check Character)
Start-stop synchronized data configuration
Flow control: None
Interface: RS-485 or RS-232C
Retry function: None
Note Initial settings are shaded.
1-1-3 Transfer Protocol (CompoWay/F Communications)
The host computer sends a command frame, and the K3HB sends a response
frame based on the content of the command frame. One response frame is
sent in response to one command frame.
Response
frame
Command
frame
Response
frame
Command
frame
Host computer
K3HB

Omron K3HB-R Specifications

General

Brand	Omron
Model	K3HB-R
Category	Measuring Instruments
Language	English