
121
6-2. Troubleshooting
■
When “PLC = COMM. ERR” is displayed on the NPST-GR screen
• NPST-GR baud rate setting
In this window, you can find the baud rate as shown below:
TRNS RATE (bps) [19200 / 9600 / 4800 / 2400 / 1200 / 600 / 300 ]
Select a baud rate (19,200 or 9,600), press the
F1
key and select “SAVE DISK ? YES”
to register this change onto the disk.
Note:
RS232C interface adapter: Needs to be customized to match your computer.
• Confirm the cable specifications, referring to the following examples:
Confirm the setting of the personal
computer referring to the manual for
your computer.
Pin No.
1
2
3
4
5
6
7
8
20
Abbreviation
FG
SD (TXD)
RD (RXD)
RS (RTS)
CS (CTS)
DR (DSR)
SG
CD (DCD)
ER (DTR)
Connected to
RS232C interface adapter
(25 pins male)
Pin No.
1
2
3
4
5
6
7
8
9
Abbreviation
CD (DCD)
RD (RXD)
SD (TXD)
ER (DTR)
SG
DR (DSR)
RS (RTS)
CS (CTS)
RI (CI)
Connected to
IBM PC-AT
(9 pins female)
RS232C interface adapter & IBM PC-AT (9 Pins)
Pin No.
1
2
3
4
5
6
7
8
20
Abbreviation
FG
SD (TXD)
RD (RXD)
RS (RTS)
CS (CTS)
DR (DSR)
SG
CD (DCD)
ER (DTR)
Connected to
RS232C interface adapter
(25 pins male)
Pin No.
1
2
3
4
5
6
7
8
20
Abbreviation
FG
SD (TXD)
RD (RXD)
RS (RTS)
CS (CTS)
DR (DSR)
SG
CD (DCD)
ER (DTR)
Connected to
personal computer
(25 pins male)
RS232C interface adapter & personal computer (25 Pins)
Check the cable and RS232C interface
adapter.
• Even when both the NPST-GR and FP-M are set to 19,200 bps, sometimes a
computer cannot communicate with the FP-M properly at 19,200 bps. If this happens,
change both of their settings to 9,600 bps and try again.
• FP-M baud rate setting
Set the baud rate using the baud rate
selector of the FP-M control board.
<If you are using MENU 1 screen type>
Open [NPST MENU] by pressing the
Esc
key, then select “NPST
CONFIGURATION” to skip to the
[NPST CONFIGURATION]
subwindow. In the [NPST
CONFIGURATION] subwindow, select
“1. NPST CONFIGURATION”.
<If you are using MENU 2 screen type>
Open [NPST FUNCTION MENU] by
pressing the
Esc
key, then select
“Z. NPST CONFIGURATION”.
Check if the baud rate settings of the
FP-M and NPST-GR are the same.
9,600
19,200
9,600 bps
19,200 bps
Baud rate selector
FP-M control board
Содержание FP-M Hardware
Страница 1: ...FP M Hardware ACG M0045 1 94 12 FP M Hardware PROGRAMMABLE CONTROLLER ...
Страница 44: ...36 ...
Страница 118: ...110 ...
Страница 266: ...258 RECORD OF CHANGES ACG No Date Description of Changes ACG M0045 1 DEC 1994 First edition RECORD OF CHANGES ...
Страница 267: ......
Страница 268: ......