Siemens 420 manual Description of the AOP Advanced Operator Panel

Issue 07/04 3 Functions

3.2.2Description of the AOP (Advanced Operator Panel)

An AOP (this is available as option) has the following additional functions with respect to a BOP:

Multi-language and multi-line plain text display

Units are additionally displayed, such as [Nm], [°C], etc. Active parameters, fault messages, etc. are explained Diagnostics menu to support troubleshooting

The main menu is directly called by simultaneously pressing keys Fn and P Timer with 3 switching operations per entry

Up to 10 parameter sets can be downloaded / saved

Communications between an AOP and MICROMASTER are realized using the USS protocol. An AOP can be connected to the BOP link (RS 232) as well as to the COM link interface (RS 485) of the drive inverter.

Multi-point capable coupling to control (open-loop) and visualize up to 31 MICROMASTER drive inverters. The USS bus must, in this case, be configured and parameterized via the drive inverter terminals of the COM link interface.

Please refer to Sections 3.2.3, 3.2.4 and the AOP Manual for additional details.

NOTE

Contrary to the BOP, for the AOP, the communications parameters of the particular interface must be taken into account.

When inserting / connecting to the drive inverter, the AOP automatically changes the parameter P2012 (USS-PZD length) to 4 corresponding to the

interface.
COM link:	P2012[0]
BOP link:	P2012[1]

For DriveMonitor, the default value for the USS-PZD length is set to 2. This results in a conflict if the AOP and the DriveMonitor are operated, alternating, at the same interface.

Remedy: Increase the USS-PZD length to 4.

MICROMASTER 420	Operating Instructions
6SE6400-5AA00-0BP0	53