
B–62075E/04
5. TROUBLESHOOTING
305
5060 HDLC baud rate in DNC1
[Setting input]
[Data type] Byte
Set this parameter to 51 because the HDLC baud rate is fixed at 460K bps
in DNC1.
(1)Check that the communication settings made for the external
input/output device or host computer are the same as those made for
the NC (such as the baud rate and number of stop bits). If they are
found to be different, correct the settings.
(2)If an alternative input/output device is available, check whether
communication is normal when that device is used.
D The module mounted on one of the following optional printed circuit
boards, depending on the setting of parameter No. 0020, may be
defective. Replace the module.
Setting of parameter
No. 0020
Module is mounted on: Remarks
0, 1, 2 Main CPU printed circuit
board
See Sections 2.5.2
to 2.5.5.
3, 13 Sub–CPU printed circuit
board
See Sections 2.5.15
to 2.5.17.
4, 10 Option 1 printed circuit
board
See Section 2.5.19.
Action b
D The external input/output
device or host computer
is faulty
Action c
D The I/O interface module
or communication
control module is faulty