Mitsubishi FX3U-64CCL, User Manual

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7 Buffer Memory
7.2 Buffer memory details
39
FX
3U
-64CCL User's Manual
1
Introduc
tion
2
Specifi
cation
and func
tion
3
Sy
stem
Configurati
on
4
Ins
tal
lation
5
W
iri
ng, S
tart-up
proced
ure
6
FX
3U
-64C
CL
settin
g (swi
tch
settin
g)
7
Buf
fer
M
emor
y
8
Program Ex
ampl
e
9
Troubl
es
hooti
ng
A
Ve
rs
ion
Inform
ation
7.2.8 [BFM#29] Error code
This buffer memory address stores error code information for the 64CCL.
The following meaning is assigned to the error code handled as the ON/OFF information of bit 0 to bit 15.
BFM#29 Error code
bit Description Explanation
0 Station number setting error
OFF: No errors in the setting
ON: The rotary switch is set outside the allowable setting range.
Communication state: Stop
Action: Please check the setting of the rotary switch.
1 Transmission rate setting error
2
Occupied station, expanded cyclic
setting error
3 Reserved 0 (Not used)
4 Station number change error OFF: No setting change
ON: This bit turns ON when the rotary switch setting is changed after the 64CCL is
started, and turns OFF when the rotary switch is returned to its previous setting.
Communication state: Continuation
Action: Please check the setting of the rotary switch.
5 Transmission rate change error
6
Occupied station, expanded cyclic
setting change error
7 Reserved 0 (Not used)
8
Errors in internal communication
power supply
OFF: No error
ON: Inside communication power supply error
Communication state: Stop
Action: For repair, contact your local Mitsubishi Electric distributor.
9 Hardware error
OFF: No error
ON: Hardware error
Communication state: Stop
Action: For repair, contact your local Mitsubishi Electric distributor.
10 Module status
OFF: Normal
ON: Abnormal (SB0020)
Data cannot be transferred normally to/from the main unit.
Communication state: Stop
11 Host station operation status
OFF: Normal
ON: Abnormal (BFM#25 b0, 1)
Communication state: Continuation or stop
12 Transient transmission status
OFF: No error
ON: Error(SB0094)
Communication state: Continuation or stop
13 Reserved 0 (Not used)
14 BFM accessibility error
OFF: No error
ON: The executed TO instruction specifies an unavailable area or unassigned remote
I/O (RX/RY) area or remote register (RWw/RWr) area.
Communication state: Continuation
Action: Please check the PLC program.
To reset this bit, write "K0" to BFM #29.
15 Global error
OFF: No error
ON: One of the bits BFM#29 b0-b14 turns on.
Action: Please check the applicable error definition.