Operator Terminal System Manual - 11276916.pdf

Network Functions and Communication
9 Communication
Transparent
mode
Connecting PCs or
other computer
systems
Parameter Description
Flow 2 → 1 Trigg signal Digital trigger signal that controls the data exchange for the data
channel from controller 2 to controller 1.
Meaning of the signal status:
0 Inactive
1 Transfer
The terminal deactivates the signal after successful transfer.
Interval Indicates the time in seconds that elapses between cyclic transfers
in the data channel.
Set the interval parameter to zero if there is no cyclic transfer.
When the value is higher than zero (1), the parameter has priority
over the trigger signal. In this case, a trigger signal will not be able
to initiate a transfer.
The maximum number of seconds is 65535.
When you have completed your data channel settings, click [Add].
The [Data exchange] function has the same priority as all other terminal functions.
Example: If the terminal is working at full capacity (because other functions are being
executed) when you request a data exchange, the data transfer time between the
controllers will increase.
In transparent mode, you can use a communication port (programming / printer port) on
the terminal that is not connected with the controller to connect other parallel units to the
controller. Such units can be terminals, a PC with programming tools for the controller
or a higher-level operator system.
Refer to the driver manual for information whether the connected controller supports
transparent mode.
PCs with a programming tool or another computer system are directly connected with a
communication port (in this case programming/ printer port) of the terminal.
222 System Manual – DOP11A Operator Terminals