Mitsubishi Electric MELSEC iQ-R Series User Manual page 278

Symptom
An SECS message is not sent even
when the sending request trigger is
ON.
10 TROUBLESHOOTING
276
10.1 Troubleshooting by Symptom
Check item
Is the communication-established
relay ON?
Is the online relay ON?
Is the programmable controller CPU
set to "STOP", and the sending
request trigger set to ON manually?
Is there no spooling state?
Are there incorrect device
assignment settings in SECS/GEM
communication software?
Is a device of the MELSEC-Q series
SECS/GEM communication software
pre-installed model module within the
shared memory being used for a
trigger?
Is "Shared Memory Synch Waiting
Timer" setting inappropriate?
Corrective action
SECS/GEM communication software manages the communication
establishment state, and establishing an S1F13/14 transaction results in a
communication establishment state, and the communication-established relay
switches ON.
When communication is not established, messages other than S1F13/14
cannot be sent.
For the settings of the Communication established relay, refer to the following:
Page 99 CA status
SECS/GEM communication software manages the online state, and
establishing an S1F1/2 transaction establishes an online state, and the online
relay is switched ON.
During an offline state, messages other than S1Fx cannot be sent.
For the settings of the online relay, refer to the following:
Page 99 CA status
If the Programmable Controller CPU is set to "STOP", and messages can be
sent, check the program of the Programmable Controller CPU.
If the messages cannot be sent even when the programmable controller CPU
is set to "STOP", check the above check items: "The communication-
established relay is not on" and "The online relay is not on".
A spooling state results if there is an attempt to send a message subject to
spooling in an offline state.
In a spooling state, the following messages subject to spooling are spooled
and not sent.
The spooling state is not cleared until a S6F23/24 transaction is established
from the correspondence destination.
For the settings of the spooling state, refer to the following:
Page 123 Spooling Function (non-GEM version)
Page 198 Spool Function (GEM / GEM advanced version)
Define all device assignment settings for devices used by SECS/GEM
communication software.
If devices not defined by the device assignment settings are configured by
various functions, access is not authorized.
For details on device assignment settings, refer to the following:
Page 78 Device Assignment
When the MELSEC-Q series SECS/GEM communication software pre-
installed model module will be used, the multi-CPU settings of the
programmable controller CPU unit and MELSEC-Q series SECS/GEM
communication software pre-installed model module must also be defined in
the range settings of shared memory. For the multi-CPU settings, refer to the
manual of each module.
When a device within the shared memory range is used as a trigger relay,
configure a device of the Programmable Controller CPU.
When a device of the MELSEC-Q series SECS/GEM communication software
pre-installed model module has been configured, access from the
programmable controller CPU is not possible, and it cannot be used as a
trigger relay.
SECS/GEM communication software performs a synchronization check to
confirm the handshake with the Programmable Controller CPU.
By default, the "Shared Memory Synch. Waiting Timer" is configured to 10 ms.
Adjust the shared memory synch. waiting timer according to the scan time of
the programmable controller CPU.
For the settings of the Shared Memory Synch. Waiting Timer, refer to the
following:
Page 94 Control detail