Led Display; Setting The Rbc Number - Siemens SIMATIC TI505 User Manual

Hardware Components (continued)

LED Display

Setting the RBC
Number
1-10
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The LED at the top of each RBC displays a number to indicated RBC status
or errors. The messages conveyed by the numbers are shown in Table 1-4.
Number
0
1
2
3
4
5
6
7
8
C
NOTE: If an RBC is configured in the controller (LED display 0) and you
deleted it from controller memory, the LED display does not change (LED
display 7) until a restart or power cycle is performed.
To reset an RBC with a 1 displayed, move the base address thumbwheel
switch to another address for 0.5 seconds, then return the switch to the
correct address. The RBC attempts to come on-line.
The top thumbwheel switch on the face of each RBC allows you to select the
RBC number (0–15) on the RCC channel. RBC numbers must not be
duplicated on another base; but the active and stand-by RBCs on the
redundant base must have the same number.
Table 1-4 LED Codes
Meaning
RBC good- configuration ok
Self-diagnostics failure
Module Mismatch
Communications time-out
RAM parity error
Stand-by unit, not configured
Stand-by good, wrong address
Communications good, but no I/O configured
Watchdog time-out
Stand-by unit, configured
SIMATIC TI505 Redundant I/O System User Manual