Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 315)

Publication 1760-UM002B-EN-P - March 2005
Pico-Link and Point-to-Point Serial Connections 6-9
Send Each Change on the Inputs/Outputs (SEND IO)
The SEND IO function should be used if you wish to send any change in
input or output status immediately to all other network stations. SEND IO
should be activated if intelligent stations have read access to the inputs and
outputs of other stations (2I 02, 8Q 01, etc.).
This means that the quantity of messages on the network can increase
significantly.
SEND IO ✓ = factory default setting
Automatic Change of the RUN and STOP Mode
REMOTE RUN should be activated if stations 2 to 8 are to automatically
follow the mode change of station 1 during operation.
IMPORTANT
If high-speed counters are used, the SEND IO
function should be deactivated. Otherwise the input
data is written very rapidly onto the network as they
change continuously, leading to unnecessary loading
of the network.
If intelligent devices are required to exchange bit
information, it should be implemented via RN and
SN.
IMPORTANT
Input and output devices must always have SEND IO
activated, to ensure that station 1 always receives
up-to-date input and output data.
IMPORTANT
Intelligent stations with display only follow the
operating mode change when the display is showing
the Status display or a text.
SEND IO
✓