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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
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