Panasonic MEWNET-F Technical Manual page 115

[Example]
When "H8" is stored in DT9137(DT90137), it indicates a terminal station assignment error has occurred
on master 3 of the affected communication path.("8H" = "00000000 00001000"; Bit 3 (4) = "1")
Description
Remote I/O communication error
Note1)
(Communication error
①
occurs in a slave station.)
Communication error
②
(Communication error occurs.)
An illegal unit is installed on a
③
slave station
Remote I/O terminal station error
④
Excessive total number of slots
⑤
on a master unit
Excessive total number of I/O
⑥
points on a master unit
Power failure error in a slave unit
⑦
Note1)
I/O attribute error on a slave
station where a slave unit is
⑧
Note1)
installed
Note1) You can determine on which slave station has produced the error.
Note2) You can select whether the CPU will halt or not when an error occurs by setting a system register.
Reference: <Chapter 7 Operation Modes for Controlling MEWNET-F>
CPU
operation
Selection
Note2)
Note1)
Selection
Note2)
Halt
Run
Halt
Halt
Run
Selection
Note2)
Actions
Check for a power interruption to a slave
station or for a disconnected communication
cable.
Make sure that the communication cable
length and slave station number have been
set correctly.
Remove the illegal unit.
The setting of the terminal station for remote
I/O is incorrect.Correctly set the terminal
station again.
Observe the usage limits.
(Max. 64 slots)
Observe the usage limits.
Check the power supply system.
Verification error or error in an advanced unit,
etc Perform a check of the I/O unit.
9-5