User`s manual

Chapter 5 - Initializing the GP
GP-477R/577R Series User's Manual 5-17
3. STATION SETUP (n:1)
The STATION SETUP, necessary for the n:1 (multi-link) setup, checks whether
correct communications run with the connected GP System configuration.
NETWORK INFORMATION ADDRESS
In the n:1 (multi-link) connection, the Network Information uses 2 words in
its correspondences. These two (2) words consist of a Connection List and a
Validation List (described later in this section). These areas are allocated in
the PLC's Data Register (D) or Data Memory (DM).
PLC Data Register
In the NETWORK INFORMATION ADDRESS, setup the same
address to all the GP's connected to the same link unit. Further-
more, when there are 2 ports in the connected link unit, do not
make them the same address.
• Connection List
The word address for the Connection List sets up the number of GP's con-
nected to the PLC, which must be registered beforehand on the PLC side.
When these GP's are connected to the PLC, the corresponding PLC bit
numbers for the particular GP Stations (see below) turn ON.
When the GP is connected to the PLC, and the option of GP only correspon-
dence ends and OFFLINE mode is entered, the GP Station Number turns the
corresponding PLC bit OFF.
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Important
Bit 0
Bit 15
Note: