Operating instructions
Multiplexer
32 © Copyright 1993 - 2007 by PI + TIS
11.4 PG-MUX-II for AEG A120, A250
• compatible with the AEG A120, A250-controls
• immediately ONLINE with both interfaces to the plc
• can be operated by all original and compatible programming devices
• all PG connections are the same as a AEG A120, A250
• all connections and operating elements are at the front of the device
• module which controls all the device functions and the voltage supply and which resets the
device in case of failure
• compact device in a metal casing: PG-MUX-II: 190 x 110 x 50 mm
• 24V DC or 230V AC supply
• easy mounting into the switchboard
11.4.1 Take notice
The usage with a A120 and with a MICRO AEG (with adapters for the MICRO AEG, but not
the TSX MICRO) works correctly. At the work with a A250, the PG can try to conform the
PLC. The PLC make changes inside and works with different baudrates for a short time. The
MUX will may lost the communication, but will find it a few seconds later. The PG will show
an error message. In fact, please confirm the function load program into the PLC´ without the
MUX.
If two operation panels are connected to the PG-MUX, both must be differently
parameterised, in case of that the operation panels haven’t the same FW´s and DB´s. If the
FW´s and DB´s are the same, the PLC can not distinguish from what OP the data was
transferred. That problem doesn’t appears when you use different FW´s and DB´s.
You should generally enter a `time-out` into your OP (if it is possible), because if a PG
transfers a large DB (for example), the OP must wait for the next conversation with the PLC.
If you increase the time-out, the OP waits for a longer time, can’t go into the ´time-out´. A
good time is 3-5 sec.