Omron FQM1-MMA21 Manuel D’Utilisation
131
Serial Communications
Section 6-1
Refer to the Instructions Reference Manual (Cat. No. O011) for more details
on the TXD(236) and RXD(235) instructions.
on the TXD(236) and RXD(235) instructions.
System Setup
RS-232C Settings (Host Link Port Settings)
Note
The settings are made using CX-Programmer Ver. 5.0
@ menus.
6-1-3
NT Link (1:N Mode)
With the FQM1, communications are possible with PTs (Programmable Ter-
minals) using NT Links (1:N mode).
minals) using NT Links (1:N mode).
Note
Communications are not possible using the 1:1-mode NT Link protocol. Also,
the standard baud rate must be used.
the standard baud rate must be used.
The settings can be made using System Setup and the PT system menu.
System Setup
PT System Menu
Set the PT as follows:
1,2,3...
1.
Select NT Link (1:N) from the Comm. A Method or Comm. B Method on
the Memory Switch Menu in the System Menu on the PT.
the Memory Switch Menu in the System Menu on the PT.
2.
Press the SET Touch Switch to set the Comm. Speed to Standard. High-
speed communications are not possible.
speed communications are not possible.
Transmission
delay time
delay time
Transmission
TXD(236) instruction
Time
Item
Setting
Default
Enabled
Mode
RS-232C
Host Link
Each cycle
Delay
0 to 99,990 ms (unit: 10 ms)
0 ms
End Code
00 to FF hex
00 hex
Start Code
00 to FF hex
00 hex
Received bytes
1 to 255 bytes
256 bytes
Use of end code
Received bytes or CR+LF
Received bytes
Use of start code
None
None
Communi-
cations
port
Name
Settings
contents
Default
Other
conditions
Peripheral
port
port
Mode
NT Link (1:N
mode)
mode)
Host Link
Turn ON pin 2
on the Coordi-
nator Module
DIP switch.
on the Coordi-
nator Module
DIP switch.
Baud Standard
NT
Link
Standard NT
Link
Link
NT Link max.
0 to 7
0
---
RS-232C
port
port
Mode
NT Link (1:N
mode)
mode)
Host Link
---
Baud
Standard NT
Link
Link
Standard NT
Link
Link
NT Link max.
0 to 7
0
---