Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 312)

Publication 1760-UM002B-EN-P - March 2005
6-6 Pico-Link and Point-to-Point Serial Connections
Functions of the Stations in the Network
The stations on the Pico-Link can have two different functions:
• Intelligent stations with their own programs
(stations 1 to 8)
• Input/output devices (REMOTE IO) without their own program
(stations 2 to 8)
Possible Write and Read Authorization in the Network
The stations have differing read and write authorization on the Pico-Link
according to their functions and configuration.
Station 1
Authorized read access to all inputs and outputs of all stations regardless of
the function. Observe the setting of SEND IO. See Send Each Change on the
Inputs/Outputs (SEND IO) on page 6-9.
Authorized write access to the station's own local outputs.
Authorized write access to the physical digital outputs of the stations which are
functioning as input/output devices.
Write authorization to the network bit data 2 to 8 SN 1 to 32.
Stations 2 to 8
Input/output device function
No read and write authorization.
Intelligent station function
Authorized read access to all inputs and outputs of all stations regardless of
the function. Observe the setting of SEND IO. See Send Each Change on the
Inputs/Outputs (SEND IO) on page 6-9.
Write authorization to its own local outputs.
Write authorization to the network bit data SN 1 to 32.
IMPORTANT
Station 1 must always have a circuit diagram.