Emerson A5510 用户手册
Thin Web Server Troubleshooting
Symptom
Possible
Problem
Possible
Cause
Action Prevention
13. Server setup
program cannot
upload /
download
configuration.
Receiving an
error message
after upload /
download.
upload /
download
configuration.
Receiving an
error message
after upload /
download.
Corrupted
TWS
configuration
file.
TWS
configuration
file.
– TSSP & TWS program
version mismatch.
Same as item 4
Same as item 4
14. Serial Modbus
communication
is not working
properly.
is not working
properly.
Modbus
master cannot
communicate
with TWS.
master cannot
communicate
with TWS.
– TWS is not serially connected
properly to the Modbus
master.
master.
– TSSP was not configured for
serial Modbus
communication.
communication.
– Incorrect serial cable adapter
used for this application.
– Incorrect registers used by the
Modbus master.
– Make sure to use the correct serial adapter to connect the
Modbus master to the TWS.
– Only COM2 can be used for serial Modbus
communication.
– Make sure to enable and set up serial communication to the
TWS properly.
– Make sure to use only the register maps for TWS serial
Modbus communication.
– Follow this Installation
Manual for how to
connect and implement
Modbus communication
in the TWS.
connect and implement
Modbus communication
in the TWS.
– Only use TWS Modbus
communicaton register
maps in designing GUI
applicaton that will
communicate to ASCO
device through the
TWS.
maps in designing GUI
applicaton that will
communicate to ASCO
device through the
TWS.
15. TCP/IP open
Modbus
communication
is not working
properly.
communication
is not working
properly.
Modbus
master cannot
communicate
with TWS.
master cannot
communicate
with TWS.
– TWS was not configured for
TCP/IP Modbus
communication.
communication.
– Incorrect registers and
addressing scheme used by
the Modbus master.
the Modbus master.
– Make sure to enable and set up TCP/IP Modbus
communication to the TWS properly through TSSP.
– Make sure to use only the register maps for TWS TCP/IP
Open Modbus communication.
– TCP/IP Modbus communication of the TWS only renders
data from serial devices connected to its COM3 & COM4
ports. TWS does not render data from remote 72Es.
ports. TWS does not render data from remote 72Es.
– Follow this Installation
Manual for how to
install the TWS and use
the TSSP.
install the TWS and use
the TSSP.
– Only use TWS Modbus
communication register
maps in designing GUI
application that will
communicate to ASCO
device throught the
TWS.
maps in designing GUI
application that will
communicate to ASCO
device throught the
TWS.
16. Needed to reset
alarm logs.
alarm logs.
– Run your server setup program again, connect to the TWS.
Go to Utilities, Server File Management and delete
the file C:\alarm.bin. Refer to page 5-1.
the file C:\alarm.bin. Refer to page 5-1.