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Chapter 6 – Initializing the GLC
GLC2400/2500/2600 Series User Manual
6.4.11 COMMUNICATION PORT SETUP
This screen allows you to set up the connection environment of the GLC's com-
munication port.
SERIAL I/F CHANGE
Selecting "YES (COM1 <->COM2)" designates that the communication used for the
Extended SIO Script Protocol starts at the Serial I/F (COM1). Also, the communica-
tion used for the device/PLC starts at the Expansion Serial I/F (COM2).
In OFFLINE mode, the SERIAL I/F CHANGE setting is set to "NO".
•
After selecting "YES
(COM1 <->COM2)", enter all of the settings related
to device communication using the Extended SIO Script Protocol, [EX-
PANSION SERIAL COMMUNICATION SETUP] screen. Enter all of the
settings related to Device/PLC communication, [SETUP SIO] screen.
•
To use the "SERIAL I/F CHANGE" feature, the system of GP-PRO/PB III
for Windows Ver.6.2 or later is required to be transferred to the GLC.
RI/VCC (COM2)
This setting designates if the Serial Interface's #9 pin is used for RI or for VCC.