
2. SYSTEM CONFIGURATION
2 - 6
MELSEC-A
(3)
Peripheral device
(a)
Points to note when using an A6WU P-ROM writer
1)
When using an A1SHCPU
Use an A6WU P-RPM writer module whose software version is "E"
or later.
A6WU
DATE [ ] [ ] [ ] ( ) ( )
Label
[ ] [ ] [ ] ( ) ( )
Date of
manufacture
Software version
Hardware version
(b)
The A6WU P-ROM writer module cannot be installed directly on the
AnSHCPU (add-on installation impossible).
Only handheld connection using cables is possible.
(c)
Among the programming modules (A7PUS and A8PUE), only the
A7PUS can be added on.
The other models (A8PUE) are available only as the handheld
installation type which requires cables.
(4)
EPROM memory cassette ROM partition
Partitioning the EPROM memory cassette with an A6GPP (SW4GP-
GPPA)/A6WU requires a memory write adapter (optional). The valid
combinations of memory cassette and memory write adapter are as follows :
Memory cassette model
CPU model
model
capacity
Memory write adapter model
A1SHCPU
A1SNMCA-8KP
32k bytes
A6WA-28P
A1SJHCPU(S8), A1SHCPU
A1SMCA-8KP,
A1SNMCA-8KP
32k bytes
A6WA-28P
(5)
Program write during operation with E
2
PROM
(a)
When an operation is executed using an E
2
PROM, writing is not
possible in the RUN status. If writing is attempted in this status, the
following messages will be sent to the peripheral devices :
•
When the SW3GP-GPPA
is used
:
"PLC COMMUNICATIONS
ERROR : ERROR CODE = 19" is
displayed.
•
When SW0RX-GPPA
is used
:
"PLC COMMUNICATIONS
ERROR :
ERROR CODE = 19" is
displayed.
•
When the A7PUS is used
:
"PLC NOT RESPOND" is
displayed.
(b)
Programs cannot be written from peripheral devices which are
connected to the computer link module or other stations of the
MELSECNET.
Write programs from peripheral devices connected to the AnSHCPU's
RS-422.
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