Panasonic GTWIN - How GT Link Functions

GTWIN Reference Manual
1.6 GT Configuration
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1.6.14.1 How GT Link Functions
With GT link, communication is performed via RS485 by passing a token. The GT that
received the token performs necessary communication with the PLC and transfers the token
to the next GT in ascending order.
Station numbers should be specified in both the GT and PLC. Station no. 0 should be
assigned to ensure optimal boot speed. Do not assign the same station number to more than
1 unit.
GT link control device area
GT station numbers are allocated to the control device area for GT link. Turning on the bit that
corresponds to the GT station no. on the PLC side enables the GT link connection.
Item
Description
Connected GT designation area
The bit that corresponds to the GT station number for which
communication is occurring turns ON.
If one unit is damaged, operation can be performed with remaining GT
units when set to OFF.
Connected GT monitor area
The status of the GT units for which communication occurs properly can be
monitored.