Specifications

App - 47
Error Code List (Continued)
Error No. Description of error Corrective action
FD3A
Communication test request destination error
(communication test)
A station to which a test request is not available was specified.
C
N
CCCCCCNNNNNNNN
: CPU module
: Network module
: Comm unication
request disabled
station
GX Developer
FE20
Data error
(The received data cannot be processed. ACPU
other than AnUCPU is designated as relay station.)
Correct the routing parameters, or replace the relay station with
AnUCPU.
FE21
ZNRD/ZNWR device range error Review the device range of target CPU.
FE22
Request error Data length error of general data, etc.
FE23
Message error
Retry.
(If the error frequently occurs, check for the faulty cables, faulty
hardware, noises, absence of terminating resistors (in the case of
the bus), and incorrect wirings.)
FE24
CPU error occurred
Review the installing of the CPU module and network module, and
retry.
FE25
Base power supply error
Confirm the power supply status (insufficient voltage, instantaneous
interruption, overvoltage, etc.) of the target station for the transient
transmission and the relay station.
FE27
• An error has been detected in CPU module of the
remote master station or remote master station.
• Remote I/O station is being disconnected.
• Review the operation status of the remote master station.
• Check the connection status of the cable.