SMC Networks EX260 Series Operation Manual page 23

○Diagnostic information
The EX260 SI unit can support 8 bytes of diagnostic information, 6 bytes standard diagnostic information
and 2 bytes SI unit-related diagnostic information.
Diagnostic information can be requested by the DP master from the SI unit, and such system fault states
can be indicated by the SF LED.
Supported SI unit-specific status is as follows:
Function
Solenoid valve power supply
voltage monitoring
Refer to the DP master's operation manual for details of how to monitor diagnostic information through the
DP master.
The following shows detailed diagnostic information.
(Bit status shown in the byte table is a default value. x means variable.)
Byte0: Station Status 1
Diag. Master_Lock
"1" means that the SI unit is
addressed by different DP
master
Diag. Prm_Fault
"1" means that parameter for
the SI unit is invalid
Diag. Invalid_Slave_Response
"1" means that response from the
SI unit is invalid
Diag. Not_Support
"1" means that diagnostics is
not supported
Detects when load voltage for the valve is not supplied or outside tolerance range.
(19 V or less)
Bit 7
0 0 0 0
-22-
Description
0
x 0 0 0
Diag. Station_Non_Existent
"1" means that the SI unit not
addressed by the DP master
Diag. Station_Not_Ready
"1" means that the SI unit is not
ready to communicate with the
DP master
Diag. Cfg_Fault
"1" means that the configuration
data sent from the DP master to
the SI unit does not agree with
the SI unit configuration
Diag. Ext
Indicates status of the extended
diagnostic information area
(byte 6-7)
No.EX##-OMN0009-E