896
APPX
Appendix 8 Buffer Memory
Un\G1051 Diagnostic request
information
Diagnostic request
information
Specify a slave station number whose diagnostic information is to be
displayed.
Range: 1 to 64
• For the programmable controller CPU with firmware version earlier
than "28", the range is from 1 to 16.
U
Un\G1052 Diagnostic information
status flag
Diagnostic information
status flag
After the END instruction of the scan where the bit 0 of 'Diagnostic
information display request' (Un\G1050) is turned off and on is
executed, the status (valid or invalid) of diagnostic information
(Diagnostic information 1, Diagnostic information 2) of the slave station
specified in 'Diagnostic request information' (Un\G1051) is stored.
(Valid: 1, Invalid: 0)
b0 to b7: Diagnostic information 1
b8 to b15: Diagnostic information 2
• If the station number of the slave station that is specified in
'Diagnostic request information' (Un\G1051) is the start station
number of the occupied stations and the cyclic transmission is
performed for the slave station, 1 is stored in b0 to b7 and b8 to b15.
(If the specified slave station is a reserved station, 0 is stored in b8 to
b15.)
• If the station number of the slave station that is specified in
'Diagnostic request information' (Un\G1051) is other than the start
station number of the occupied stations or the cyclic transmission is
not performed for the slave station, 0 is stored in b0 to b7 and b8 to
b15.
• When b0 to b7 are valid, the number of occupied stations, group
number, IP address, the accumulated number of timeouts, and the
accumulated number of disconnection detection are stored in
'Diagnostic information 1' (Un\G1053 to Un\G1064). When invalid, 0
is stored in 'Diagnostic information 1' (Un\G1053 to Un\G1064).
• When b8 to b15 are valid, the Manufacturer code, model code,
device version, module information, error code, and detailed module
information are stored in 'Diagnostic information 2' (Un\G1068 to
Un\G1077). When invalid, 0 is stored in 'Diagnostic information 2'
(Un\G1068 to Un\G1077).
S (Status
change)
Address Name Data stored Details Set by
(setting
timing)
b15 b7b8
b0
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