Diagnosis Information - SMC Networks EX510-GPR1 Series Operation Manual

4. Diagnosis information

Diagnosis information of the GW unit is composed of 6 bytes standard diagnosis information and
5 bytes GW unit status information, 11 bytes in total, as specified in PROFIBUS DP.
When the GW unit is in a non-standard state, it will send an error message to the master as diagnosis
information, and light up the DIA display.
GW unit status information is as follows.
Function
Output device open fuse surveillance
Surveillance of output device power
supply voltage
Input unit communication monitoring
Refer to PROFIBUS specifications and manual of the master, etc. for how to refer to diagnosis
information on the master.
The composition of diagnosis information is as follows. (The value when it is normal is indicated. "X"
means the value is changeable.)
Byte0: Station Status 1
Diag. Master_Lock
"1" when SW unit is set as the
other master
Diag. Prm_Fault
"1" when the parameter
regarding the GW unit is wrong
Diag.
Invalid_Slave_Response
"1" when the response from
the GW unit is wrong
Diag. Not_Support
"1" when the diagnosis is not
supported
It detects when the fuse for the valve in the GW unit (COM A to D at
output side) is broken, and the valve power supply is turned off.
It detects when the voltage of the output device lowers to
approximately 20 V or less.
Detection of communication error in A to D on the input side due to the
broken fuse of the Input unit.
Bit 7
0 0 0 0
-24-
Contents
0
X 0 0 0
Diag. Station_Non_Existent
"1" when GW unit is not
recognized by the master
Diag. Station_Not_Ready
"1" when the GW unit is not
ready for data transmission
Diag. Cfg_Fault
"1" when the GW unit
configuration information
transmitted from the master is
wrong
Diag. Ext
Indicates the status of
enhanced diagnosis region
(bytes 6 to 10)
No.EX##-OMI0032-C