YOKOGAWA DTSXL, Руководство пользователя, Страница: 286 / 289

< PART – C Operation and Maintenance >
C-33
IM 39J06B40-01EN 14th Edition: May 30, 2022
Temperature
measurement
completely fails (when
DTSX3000 is used
together with an optical
switch).
- Check if measurement is normal with the DTSX3000 alone.
- If measurement is normal with the DTSX3000 alone, proceed to previous
row for “Channel switching by optical switch fails.”
The green LED on the
optical switch module
blinks.
- Check message logs for problem description. Re-apply power and check
if the same problem recurs.
- If the same problem recurs frequently even after reapplying power, the
optical switch may be faulty.
LAN communication
fails.
- Check if the LINK LED lamp is lit.
- Check if the communication cable is connected properly. Try reapplying
power to the DTSX3000 and communication devices.
- Try reconnecting the communication cable properly.
- Try replacing the communications cable with a new cable.
- Check if firewall and other settings of communication devices are proper.
- Check if IP addresses and subnet masks are configured correctly for the
DTSX3000 and communication devices.
- Try replacing communication devices. If communication fails even after
replacing the communication devices, the DTSX3000 may be faulty.
RS-232C
communications fails.
- Check if the communication cable is connected properly. Try reapplying
power to the DTSX3000 and communication devices.
- Check if the pin assignment of the communication cable is proper.
- Try reconnecting the communication cable properly.
- Try replacing the communications cable with a new cable.
- Check if the baud rate, parity, protocol and other transmission settings of
the DTSX3000 and the communication device are proper.
- Try replacing communication devices. If communication fails even after
replacing the communication devices, the DTSX3000 may be faulty.