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5-22

Installing Remote Base Controllers—RBCs SIMATIC 545/555/575 System Manual

PPX:505–6870 RBC (continued)

Switch 11 on the dipswitch controls the display mode of the RBC Status

Display to show either station address or module status.

• When switch 11 is set to 1, the station address of the RBC is displayed

as a three-digit number, one digit at a time. The display goes blank for

a short period of time between each digit and for a long period after the

last digit. For example, if the RBC station address is 18, it will be

displayed according to this pattern:

0 (short pause) → 1 (short pause) → 8 (long pause)

0 (short pause) → 1 (short pause) → 8 (long pause) . . .

The three-digit pattern repeats until the mode is changed.

• When switch 11 is set to 0, the status of the RBC is displayed,

according to the codes shown in Table 5-8.

NOTE: When switch 11 is set to display the RBC status, a decimal point on

the status display indicates that the 50X Ignore Mismatch Mode parameter

is enabled. The point appears before the status code, as shown below.

50X Ignore Mismatch

Mode: Enabled

50X Ignore Mismatch

Mode: Disabled

If the 50X Ignore Mismatch Mode is disabled (the default value that

conforms to the DP standard), the RBC status display does not show a

decimal point. For more information about this parameter, see page 5-24.

The Status Display mode switch is read periodically during operation. The

switch may be changed at any time.

Table 5-8 505 PROFIBUS-DP RBC Status Codes

Display Definition

Communications

to This RBC

Comment/Action

0 Module Ready OK

Fully operational. No errors detected.

Action: None.

1 Diagnostic Failure None

Serious malfunction.

Action: Place the system in a safe state and

consult Siemens Technical Support. (In the

U.S.A., call 423–461–2522.)

2 Module Mismatch OK

I/O modules installed in this base do not

match the expected configuration in the

PROFIBUS-DP master.

Action: Compare the actual configuration of

the base against the configuration expected

by the PROFIBUS-DP master.

Status Display

Mode

1 2 ... 158 159 160 161 162 163 164 165 166 167 168 ... 321 322

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