5-7
5-2 CompoWay/F Communications Errors
If the 3F88L-160/162 Cam Positioner detects an error when data is being transferred
using the CompoWay/F, it will return an end code other than “00” indicating a commu-
nications error. If an end code indicating a communications error has been returned,
determine the cause and take the appropriate countermeasures.
Communications errors may be caused by incorrect wiring of the communications cable
or noise during transmission. Therefore, always check the following points first.
S Check that communications cables are correctly wired.
S Check that communications cable connectors are securely connected.
S Check that there is no source of noise in the vicinity and that data has not been cor-
rupted by noise during transmission.
H Communications Errors
End code Error name Description Probable cause Probable solution
“0F” FINS command
error
The specified FINS-
mini command cannot
be executed.
A command not sup-
ported by the Cam Po-
sitioner has been is-
sued.
Check the communica-
tions command.
The Cam Positioner
has an error.
Check the Cam Posi-
tioner.
The Cam Positioner is
in a different mode (not
in a mode for which the
issued command is en-
abled).
Check the Cam Posi-
tioner mode.
“10” Parity error A parity error has oc-
curred for one of the
characters during data
The communications
cable is wired incorrect-
ly.
Check the cable wiring.
reception.
Data has been cor-
rupted due to noise du-
ring communications.
Check the cause of the
noise.
“11” Framing error A framing error has oc-
curred at the response
frame.
The communications
cable is wired incorrect-
ly.
Check the cable wiring.
Data has been cor-
rupted due to noise
during transmission.
Check the cause of the
noise.
“12” Overrun error An overrun error has
occurred.
The communications
cable is wired incorrect-
ly.
Check the cable wiring.
Data has been cor-
rupted due to noise du-
ring communications.
Check the cause of the
noise.
“13” BCC error BCC for response
frame is incorrect.
Data has been cor-
rupted due to noise du-
ring communications.
Check the cause of the
noise.
The BCC operation is
incorrect.
Check the communica-
tions protocol.
Operation Chapter 5
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