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7. Diagnosis function
7-1
7.1.1 Self diagnosis function during running
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Items Contents Remark
Diagnosis function
(Initial self
diagnosis)
** On-line mode **
1) Memory access error of communication module
2) Common RAM access and Reading/Writing error
3) Interface error of PLC and IBM_PC
4) Frame error during communication
5) Error status in physical layer of other station during communication
6) Error in physical layer of self station during communication
7) Program execution error during communication
Error code is
displayed through
LED when error
occurred
(See Appendix
A1.1/A1.2)
Diagnosis function
(Communication
diagnosis)
** Test mode **
1) Diagnosis of network configuration status in physical layer by test.
– Transmission error of physical layer
– Receive error of physical layer
2) Interface error of CPU in communication module and communication
chip.
Error code is
displayed through
LED when error
occurred
7.1.2 Communication diagnosis by test mode
$ % %
%&!
Fig. 7.1.2 Configuration of test system
CPU-A CPU-B
POWER
K1000S
FUEA(station 1)
Input 16 points
Output 32 points
Input 32 points
POWER
K1000S
FUEA(station 1)
Output 16 points
Output 32 points
Input 32 points
Operation mode : TEST 1 Operation mode : TEST 2
7.1 Self diagnosis function of Fnet communication module