A&D OP-11 Instalační manuál stáhnout pdf (Strana 39)

07/2011 2 Operating A&D DataManagement

2.4 Specifying the properties of the control components

SIMATIC A&D DataManagement Client - 07/2011

2-39

NCU adresses

Table 2-1: Default settings of the bus addresses

Connection SW version NCU address PLC address Baudrate

OPI V 3.4.07 13 13 1.5 mbaud

MPI V 3.4.07 13 2 187.5 kbaud

OPI ab V 3.5 13 13 1.5 mbaud

MPI ab V 3.5 3 2 187.5 kbaud

From NCU software version 3.5 and higher, the address of the NCU is

automatically set to PLC-ADR + 1 when the PLC address is changed.

Example:

If the PLC address is changed to 8, the NCU is given the address 8 + 1 = 9 from

the perspective of the MPI. From the perspective of the OPI, the address of the

NCU remains 13, but it can also be changed.

Enter the correct NCU address in the Properties of the NCU component dialog.

Tips for the NCU

In addition to the NC, the NCU component also contains an S7-PLC. The memory

addresses of the S7-PLC are determined by the data of the NCU. Therefore, when

loading the NCU, load the NCU first and then the S7-CPU.

The communication between the NCU and its components requires resources. The

number of these resources is limited. So, if all resources are occupied, ADDM may

send a communication error message. In this case, one can release resources by

removing the operator panel plug (only on point to point coupling between ADDM

computer and NCU).

Attention

During the operation of a NCU, data can be changed by the operator or the by

the control itself. In this case a started data transfer could be interrupted with

communication errors, because an access from ADDM is blocked by the NCU. If

a communication error occurs, the backup has to be repeated absolutely. If not,

the changed data in the NCU are not backed up.

In order to backup, load or compare an NCU, all channels must be in the RESET

state. If this is not the case, then this can result in inconsistent data. If all of the

channels are in the RESET state, then start with the backup operation. The

progress dialog box showing the NC backup operation is always shown. This

means that every operator can see that presently a backup is being made. If not

all of the channels are in the RESET state, then an error message is returned to

the calling program (Agent or ADDM Client) and displayed.

If the backup task is controlled by the job, then the job is interrupted with error

state -2. This means that the job is repeated after a pre-set time. If the maximum

number of repeats has been reached and the NCU has still not been backed-up,

the job is terminated and the next time that it will be executed is calculated. In

this case, the NCU was not backed-up in the backup cycle that expired.

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