Event name Sysmac Studio Communications Connection Time-
out
Event code 951E0000 hex
Meaning A communications timeout occurred between the Sysmac Studio and the Safety CPU Unit.
Source Depends on where the Sysmac
Studio is connected and the sys-
tem configuration.
Source details NX Unit Detection tim-
ing
When applica-
ble
Error attrib-
utes
Level Information Recovery --- Log category System
Effects User program Continues. Operation If the CPU Unit was in DEBUG mode, it automati-
cally enters PROGRAM mode.
System-de-
fined varia-
bles
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
The communications cable was
disconnected.
Do not do anything to disconnect
communications with the Sysmac
Studio while the Safety CPU Unit
is operating in DEBUG mode.
Perform debugging considering
the corrections that are given on
the left.
Attached in-
formation
None
Precautions/
Remarks
None
Event name Clear All Memory Rejected Event code 951F0000 hex
Meaning Clearing all of memory failed.
Source Depends on where the Sysmac
Studio is connected and the sys-
tem configuration.
Source details NX Unit Detection tim-
ing
When com-
manded from
user
Error attrib-
utes
Level Information Recovery --- Log category System
Effects User program Continues. Operation ---
System-de-
fined varia-
bles
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
The Clear All Memory operation
for a Controller or a Slave T
ermi-
nal was performed.
Specify the Units individually and
perform the Clear All Memory op-
eration.
Specify the Units individually and
perform the Clear All Memory op-
eration.
Attached in-
formation
Attached information 1: The Clear All Memory operation for the Controller or the Slave Terminal was per-
formed.
Precautions/
Remarks
The Clear All Memory operation for the Safety CPU Unit cannot be performed for the Controller or the
Slave Terminal.
l
User Access Log
12 Troubleshooting
12 - 67
NX-series Safety Control Unit User's Manual (Z930)
12-3 Checking for Errors with the Sysmac Studio
12
12-3-4 Error Descriptions
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