Omron FQM1-MMA21 Manuel D’Utilisation

The FQM1 system can be expanded using the two serial ports built into the
Coordinator Module: Peripheral port and RS-232C port.

The serial communications port mode (protocol) can be switched in the Coor-
dinator Module’s System Setup. Depending on the protocol selected, the fol-
lowing systems can be configured.

The following protocols support serial communications.

CX-Programmer

Host computer

Host Link

Automatic detection of 
communications parameters

Peripheral 
port

RS-232C port

Coordinator Module

Host Link (SYS-
MAC WAY)

Personal computer

OMRON Programmable Termi-
nals (PTs)

Communications between the 
host computer and the Module

Host Link commands/ FINS 
commands

No-protocol (cus-
tom) communica-
tions

General-purpose external devices

Servo Drivers

Host controllers

No-protocol communications with 
general-purpose devices, host 
controllers, and Servo Drivers

TXD(236) instruction and 
RXD(235) instruction

NT Links (1: N)

OMRON Programmable Termi-
nals (PTs)

High-speed communications with 
Programmable Terminals via 
direct access

None

Peripheral Bus 
(Toolbus) 

CX-Programmer

Communications between the 
CX-Programmer running on a 
computer and the FQM1

None

Serial PLC Link 
Slave

OMRON PLC

Communications between 
OMRON PLC and the FQM1

None

Serial Gateway

OMRON Programmable Termi-
nals (PTs)

Servo Drivers

Communications between a PT 
and W-series or SMARTSTEP 
Servo Drivers via the FQM1

FINS commands