Filter
Top Products
211
Troubleshooting with the DeviceNet Unit Indicators Section 9-1
DeviceNet Unit Response
Records the error in the error log.
Operation will continue using the default message monitoring timer values.
Flags Allocated for C200H DeviceNet Master Unit (CIO n+24)
Bit 14 (Error Flag) and bit 03 (the Structure Error Flag) will be ON.
CIO Area Flags Allocated to DeviceNet Unit
Bits 00 and 13 of n+10 (the Unit Error Flag and Incorrect Message Monitoring
Timer List Data Flag) will be ON.
Correction
Use the Configurator to register the message monitoring timer list again.
Slave Scan List Logic
Error
Likely Cause
There is an error in the contents of the slave scan list stored in non-volatile
memory.
DeviceNet Unit Response
Records the error in the error log.
• The slave remote I/O communications will be stopped.
• Message processing and the exchange of data with the CPU Unit will
continue. Normal operation will resume when the slave scan list is written
normally. (Start the slave remote I/O communications.)
CIO Area Flags Allocated to DeviceNet Unit
Bits 00 and 03 of n+10 (the Unit Error Flag and Slave Error Flag) and bit 04 of
n+14 (Invalid Setup Data Flag) will be ON.
Correction
Disable the slave, reset the allocations, and the enable the slave again or use
the Configurator to reset the slave scan list.
Master Scan List Logic
Error
Likely Cause
There is an error in the contents of the master scan list stored in non-volatile
memory.
DeviceNet Unit Response
Records the error in the error log.
• The master remote I/O communications will be stopped.
• Message communications and the exchange of data with the CPU Unit as
a slave will continue. Normal operation will resume when the master scan
list is written normally. (Start the master remote I/O communications.)
Flags Allocated for C200H DeviceNet Master Unit (CIO n+24)
Bit 14 (Error Flag) and bit 03 (the Structure Error Flag) will be ON.
CIO Area Flags Allocated to DeviceNet Unit
Bits 00 and 01 of n+10 (the Unit Error Flag and Master Function Error Flag)
and bit 04 of n+12 (the Invalid Scan List Data Flag) will be ON.
7-segment MS indicator NS indicator Error log (Hex)
E7 Red (flashing) --- 021A
7-segment MS indicator NS indicator Error log (Hex)
E8 Red (flashing) --- 021A