10 Troubleshooting
10 - 22
NX-series Position Interface Units User’s Manual (W524)
Event name SSI Communications Error Event code 84D00000 hex
Meaning An error occurred in SSI communications.
Source
Depends on where the Sysmac Stu-
dio is connected and the system con-
figuration.
Source details
NX Unit
Detection
timing
Continuously
Error
attributes
Level
Observation
Recovery
Restart the NX
Unit.
Log category
System
Effects User program
Continues.
Operation
The previous value is retained as the present
value data and the data is not updated.
The following bit changes to TRUE: Ch SSI
Communications Error Status bit in the SSI Sta-
tus.
This bit returns to FALSE the next time normal
SSI communications are performed.
Sys-
tem-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
The SSI data settings do not agree
with the SSI communications settings
in the connected device.
Make the settings so that the SSI
data settings and the SSI com-
munications settings agree.
Make the settings so that the
SSI data settings and the SSI
communications settings agree.
The wiring between the NX Unit and
the connected device is not correct or
disconnected.
Check the wiring between the
NX Unit and the connected
device and correct any problems
that are found.
Make sure that the wiring
between the NX Unit and the
connected device is correct.
Noise Implement noise countermea-
sures if there is excessive noise.
Implement noise countermea-
sures if there is excessive
noise.
Attached
information
Attached information 1: Error channel
1: Channel 1
2: Channel 2
Attached information 2: Error details
1: Preparations for communications are not completed.
2: Frame error
3: Parity error
4: Communications timeout
5: Out of range for position difference
Precautions/
Remarks
You can change the event level to the minor fault level. If you change the level to the minor fault level, the
Recovery column above will be changed to “Reset error in the NX Unit.”
To Next Page
Loading...
Need help?
General
