Mitsubishi MELSEC-Q Series User Manual page 146

4 SET-UP AND PROCEDURE BEFORE OPERATION
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(5) Retry
Set the items related to network connection retries.
(a) Number of retries (0 to 255 times)
Set the number of connection request retries when connection to the
network fails.
(b) Change access point automatically.
Make this setting when registering more than one access point.
1) The module connections to the access point in due order starting from
the Phone number 1.
2) In the case of network connection failure, the Web server module
connects to the current access point by the number of retries, and to
the next access point.
(6) Modem attribute
Set the specifications of communication between the Web server module and
modem.
(a) Communication speed (9600, 19200, 38400, 57600, 115200)
Set the communication speed (bps) according to the modem specifications.
(b) Calling timeout (90 to 180s)
Set the time from when the Web server module side modem has gone off-
hook (line-connected) until a carrier from the external device side modem is
detected.
When it is not detected, the modem goes on-hook (line-disconnected).
(c) Dial pause time (1 to 30s)
Set the waiting time during a dial pause.
(d) AT command additional setting
1) Set the AT commands to be added.
For the AT commands, refer to the manual of the used modem.
2) The default AT commands for initializing the Web server module side
modem are as follows.
• Common initialization command: "ATZ0E1Q0V1&C1&D2&S0S0=0"
Command
Z0
E1
Q0
V1
&C1
&D2
&S0
S0=0
• Dial pause time Command (Common): "S8=n" (n seconds)
• Dial-up command: "ATDT" (Tone), "ATDP" (Pulse)
• Flow control Command: "AT&K3", or "AT&Q3"
Software reset
With echo back
With result code
Result code word form
CD signal follows the carrier of the external device side modem.
Line is disconnected when the ER signal turns from ON to OFF.
DR signal always ON
Without automatic incoming call
MELSEC-Q
Description
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