1-1 host link communications, Host link communications, Procedure – Omron HOME SECURITY SYSTEM - MOTION SENSOR FQM1-MMA21 User Manual

Page 149

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126

Serial Communications

Section 6-1

6-1-1

Host Link Communications

The following table shows the Host Link communication functions available in
FQM1. Select the method that best suits your application.

Procedure

A list of Host Link commands is provided next. Refer to the C-series Host Link
Units System Manual (W143)
for details on Host Link and FINS commands.

Command

flow

Command type

Communica-

tions method

Configuration

Application and

remarks

Create frame in
the host com-
puter and send
command to
the FQM1.
Receive the
response from
the FQM1.

Use this method
when communi-
cating primarily
from the host com-
puter to the FQM1.

To use FINS com-
mands, the host
computer must
send the com-
mands using a
Host Link header
and terminator.

Host computer
to FQM1

C-mode (Host Link)
commands

Host Link command

OR

Command

Directly connect the host computer in a 1:1 or
1:N system.

FINS

Header

Terminator

FINS command (with
Host Link header
and terminator)

OR

Command

Directly connect the host computer in a 1:1
or 1:N system.

Set the System Setup from the
CX-Programmer. (Settings such
as the Host Link communica-
tions mode and parameters.)

Refer to CX-Programmer
Operation Manual for CX-
Programmer procedures.

Power OFF

Connect the Coordiator Module
to the general-purpose external
device using RS-232C.

Power ON

Host computer to FQM1

Send host link
commands from
the host computer.

Send FINS com-
mands from the
host computer.

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