Omron HOME SECURITY SYSTEM - MOTION SENSOR FQM1-MMA21 - Manual (Page 34)

11
Expanded System Configuration Section 1-5
Set the PT communications settings for a 1:N or Standard NT Link. An NT
Link System is possible for either the peripheral port or the RS-232C port.
Note (1) The FQM1 can be connected to any PT port that supports 1:N NT Links.
It cannot be connected to the RS-232C ports on the NT30 or NT30C, be-
cause these ports support only 1:1 NT Links.
(2) The Programming Console functionality of a PT (Expansion Function)
cannot be used.
(3) When more than one PT is connected to the same FQM1, be sure that
each PT is assigned a unique unit number. Malfunctions will occur if the
same unit number is set on more than one PT.
(4) The NT Link System includes 1:1 and 1:N modes. These two modes are
not compatible as serial communications modes.
Serial PLC Link Slave The FQM1 can be connected to a Serial PLC Link by linking to a Serial PLC
Master. (It cannot be connected by the Complete Link Method.) Program-free
data exchange can be achieved between the master and slave by connecting
a CJ1M CPU Unit as the master and the FQM1 as the slave. The FQM1 con-
nection is made to the RS-232C port on the Coordinator Module.
CIO 0080 to CIO 0099 in the Serial PLC Link Bit Area in the Coordinator Mod-
ule are shared with the CJ1M master as shown below
Note Use a CJ1W-CIF11 RS-232C to RS-422A/485 Conversion Adapter when con-
necting more than one FQM1 to the same CJ1M CPU Unit (1:N, where N = 8
max.).
RS-232C
RS-422A/485
PT
Coordinator Module
PT PT
RS-232C
PT
NT Link
1:N Mode
NT Link
1:N Mode
RS-232C to RS-422A/485
Conversion Adapter
Applicable Ports
Peripheral port
Yes
(See note.)
RS-232C port
Yes
Note Turn ON pin 2 on the DIP
switch on the front of the
Coordinator Module and set
the serial communications
mode in the System Setup to
an NT Link.