Event name NX Message Communications Error Event code 80220000 hex
Meaning An error was detected in message communications for an NX Unit and the message frame was discard-
ed.
Source Depends on where the Sysmac
Studio is connected and the sys-
tem configuration.
Source details NX Unit Detection tim-
ing
During NX
message com-
munications
Error attrib-
utes
Level Observation Recovery --- Log category System
Effects User program Continues. Operation Not affected.
System-de-
fined varia-
bles
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
The message communications
load is high.
Reduce the number of times that
instructions are used to send NX
messages.
Refer to the appendix of the
NJ/NX-series Instructions
Reference Manual (Cat. No.
W502) for information on the in-
structions that send messages.
Reduce the number of times that
instructions are used to send NX
messages.
The communications cable is dis-
connected or broken. This cause
does not apply if attached infor-
mation 2 is 0 (NX bus).
Connect the communications ca-
ble securely
Connect the communications ca-
ble securely
.
Message communications were
cut off as the result of executing
a synchronization or restoration
operation on the Sysmac Studio
or as the result of disconnecting
an EtherCA
T slave.
--- ---
Attached in-
formation
Attached infor-
mation 1:
System information
Attached infor-
mation 2:
Type of communications where error occurred
0: NX bus
1: EtherCAT
2: Serial communications (USB)
65535: Internal Unit communications (routing)
Precautions/
Remarks
None
12 Troubleshooting
12 - 66
NX-series Safety Control Unit User's Manual (Z930)
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