Mitsubishi QJ71MT91 User Manual page 168

9 PROGRAMMING
9 - 6
(4) Precautions for automatic communication parameter setting
(a) Turn ON Automatic communication parameter setting request/automatic
communication start request (Y4) after Module READY (X0) and Basic
parameter setting existence (X3) have turned ON.
(b) When the automatic communication parameter setting is completed with an
error, the erroneous parameter is stored into the automatic communication
parameter setting result storage area (address: 0C12
memory, and an error code is stored into the automatic communication
parameter error code storage area (address: 0C11
Identify the stored parameter, check its error code, take corrective action,
and make a parameter setting request again.
Refer to Section 11.3 for details of the error code.
(c) The QJ71MT91 does not clear the automatic communication function buffer
input area (address: 1000
communication function buffer output area (address: 3000
to 16383)), which are used for write/read setting of the buffer memory, when
the automatic communication function is started in the status of Automatic
communication parameter setting, normally completed (X4).
Clear them as necessary using a sequence program.
(d) The automatic communication parameter setting is not allowed in the offline
mode (intelligent function module switch 1: 0001
Set the automatic communication parameters in the online mode (intelligent
function module switch 1: 0000
to 1FFF (4096 to 8191)) and automatic
H H
).
H
MELSEC-Q
(3090)) of the buffer
H
(3089)).
H
to 3FFF (12288
H H
).
H
9 - 6