Omron FQM1-MMA21 Manuale Utente
66
Wiring
Section 3-2
Connection Example to Programmable Terminal (PT)
Direct Connection from RS-232C to RS-232C
• Communications Mode: NT Link (1:N, N = 1 node only)
• OMRON Cables with Connectors: XW2Z200T (2 m)
XW2Z500T (5 m)
RS-232C Port Specifications
Note
Baud rates for the RS-232C are specified only up to 19.2 kbps. The FQM1
supports serial communications from 38.4 kbps to 57.6 kbps, but some com-
puters cannot support these speeds. Lower the baud rate if necessary.
supports serial communications from 38.4 kbps to 57.6 kbps, but some com-
puters cannot support these speeds. Lower the baud rate if necessary.
RS-232C
PT
1:N NT Link
RS-232C port
PT
Shell
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
FG
–
SD
RD
RS
CS
RD
RS
CS
5V
–
–
–
SG
Coordinator Unit
Shell
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
FG
FG
SD
RD
RS
CS
FG
SD
RD
RS
CS
5V
DR
ER
SG
ER
SG
RS-232C
interface
interface
Signal
Signal
RS-232C
interface
interface
9-pin D-sub
(male)
(male)
9-pin D-sub
(male)
(male)
Pin
No.
No.
Pin
No.
No.
Item
Specification
Communications method
Half duplex
Synchronization
Asynchronous
Baud rate
0.3, 0.6, 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, or 57.6 kbps
(See note.)
(See note.)
Transmission distance
15 m max.
Interface
EIA RS-232C
Protocol
Host Link, 1:N NT Link, No-protocol, or Peripheral Bus
(Toolbus)
(Toolbus)