App - 3 App - 3
MELSEC-Q
APPENDICES
Appendix 1.3 Precautions for replacing the module of function version A with the one of
function version B or later
(1) Incorporation into an existing system
You can use the wiring designed for function version A as-is to mount the D/A
converter module of function version B or later.
(2) Program utilization
You can use the program created for function version A as-is with the D/A
converter module of function version B or later.
(3) Switch setting for Intelligent function module
The setting of the offset/gain setting mode differs between function versions A
and B or later.
Perform the offset/gain settings after checking the RUN LED flashes in
offset/gain setting mode. If the RUN LED does not flash, check to see if the
switch 4 setting is correct.
(Refer to Section 4.5 for the intelligent function module switch setting of function
version B or later.)
<Contents of switch 4 setting for function version A>
(4) Analog output during programmable controller CPU STOP
If CH Output enable/disable flag (Y1 to Y8) is forced on (enabled) in the
function version B D/A converter module, the D/A converted value may be output
in some cases.
Refer to Section 3.2.3 for details.
H
00H : Normal mode (non-synchronized)
01
H
to FF
H
: Synchronized output mode
00
H
: Normal mode (D/A conversion processing)
01
H to FFH : Offset/gain setting mode
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