Siemens ST950 Plus+ - Page 48

ST950 Plus+ User Manual
ST950 Plus+ User Manual
Page 48 of 176
667/HE/53000/000
Issue 2
Unrestricted
3.12.3 I/O Card Status LEDs
The I/O card has three tri-colour status LEDs as shown in
Figure 24, which are used to indicate various conditions
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, as follows:
Comms Active
LED (LP1)
Software Run LED
(LP2)
Watchdog LED
(LP3)
State
Yellow
Yellow
Off
Processor Reset
Yellow
Yellow
Red
Watchdog Failure
Off
Green Steady
Off
Performing Start Up
Red
Green Flash
Off
Awaiting Start
Green Toggle on
Receipt of Message
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Green Flash
Off
Communications Active
Off
Green / Red Alternating
Off
Invalid Address
(As above depending
on state)
Red Flash
Off
Major Fault Detected
Table 7 – I/O Card LEDs
3.12.4 I/O Card Rotary Address Switch
This screwdriver-adjustable switch is located on the I/O card(s) as shown in
Figure 24 and is set up for the card address (before the controller is powered up) in accordance
with the appropriate Works Specification. The valid address range is 1 through 9. Address 0 is the
default address switch position for spare cards.
GSPI Address Range
The address range is shared with the Intelligent Detector Backplane cards and must be unique.
The address range is limited to 1 to 9. Addresses 10 and above are used by the CTBs. Due to
architecture of Plus
+
this is not expected to be a practical limitation.
3.12.5 Parts
24in 16 out panel mounted module - 667/1/46085/001
24in 4 out panel mounted module - 667/1/46085/002
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Conditions other than those identified above should not occur and can be treated as faults.
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May flash so fast that it looks like Green Steady.