Operating instructions

Multiplexer

15 Restrictions

15.1 PG-MUX-II

For PG-MUX-II for Siemens-S5:

The operation with L1-protocol is possible only at either of the two PG-interfaces since

there is only one master in an L1-system.

The Multiplexer is the master with reference to the plc.

The L1-bus is implemented as a slave protocol without interrupt, broadcast, and internet

traffic

In the interest of safety, “Process Command“ has not been and will not be supported.

For PG-MUX-II for Bosch, Mitsubishi, AEG, Klöckner-Moeller:

At this Multiplexer´s does not work two times status at two PG´s

15.2 Mini-MUX

The OP-socket of the Multiplexer is completely passive, i.e. it has neither 5V and 24V DC

exits nor 20mA source of current. Only the four transmission signal lines RxT+ (pin 9), RxD-

(pin 2), TxD+ (pin 6), TxD- (pin 7) are allocated on this interface. Moreover, the

communication protocol of this interface is restricted, i.e. higher commands for programming

devices are not supported, like for example transfer module, RUN/STOP, control module, ...,

because this interface has been designed simply as the interface of a control unit.

The PG-socket can process all functions of the PG (exception: Process Command, PG-BUS-

protocol), but it cannot L1-protocol (it does not use a programming device). The PG-socket of

the Mini-MUX gets its supply completely out of the plc. Thus, if the plc does not give out any

20mA sources of supply or voltages, consequently those cannot cling to the PG-socket.