4-7
Note3) The setting for modem initialization becomes effective whenever the power supply turns on after
it was specified by the MCU setting, and ATcr and ATS0=1cr is transmitted. If it failed, it is
retried for 5 times. The communication format and baud rate is set to the allowable values for
modem communication. Once the modem initialization succeed or failed, it is executed using the
“Timing for modem initialization command issue”.
Note4) Use a USB port at computer side when it is set to 230400 bps. If a RS232C port is used,
communication is not possible due to a device open error.
Note5) The default setting of the memory switch is 0 in the PC(PLC) link mode.
4.3.3
Unit No. Setting
Specify unit No.
Memory switch
Mode setting COM. port
Unit No. setting
switch
MCU setting F159 (MTRN)
PC(PLC) link COM. 1 1 to 15 1 to 16
General-purpose serial
communication
- No need to specify No need to specify
COM. 1 1 to 15 1 to 99
Computer link
COM. 2 Not available 1 to 99
Note) COM. 2 port cannot be used in PC(PLC) link mode.
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