Siemens TC12 Installation, Commissioning And Maintenance Handbook page 65

7= Low priority message ready from UTC TCC to output e.g. digital
6=
5= Configuration processing i.e. processing of configuration packets
from host UTC TCC to setup Instation.
4= Sumchecking IMDs done at beginning of every second (top left
hand corner of display. To ensure IMDs have correct timings and
data before allowing them to proceed with their transmission of
data to the modem boards and ultimately the OTUs.
3= Discarding memory, this task is passed memory by the other task
for it to discard.
2= processing for the Keyboard and Instation VDU i.e. standard
monitor if connected not emulated monitor.
1= Serial processing including emulated monitor.
0= Lowest task Instation initialisation.
2.4.8.5 Internal Error Counts, Key to Press 'B'
This screens shows counts of memory allocation errors associated with the
allocation of memory into which a packet received from the host UTC TCC is
placed and memory in which a packet is built prior to transmission back to the host
UTC TCC.
Rx packet allocation failures
Packet buffer allocation failure
These should never be other than zero 0.
2.4.8.6 Computer Links, Key to Press 'C'
Decnet Address = Address of the Instation PC on the Ethernet.
Timeout_count (usually 3) = Number of consecutive missing messages before
PC times out and ignores Ethernet link.
Sip_output = Indicates last states of 8 outputs which are sent to the Systems
Indication Panel, 1 = On.
Sip_Flash =
sent to the Systems Indication Panel, 1 = Flash.
Sip_input_last_sent = States of 8 input available from Systems Indication panel
when last checked.
666/HE/43100/000
TC12 Installation, Commissioning & Maintenance Handbook
outputs
Replies to a particular host UTC TCC where the Instation is only
handling digital Output for the particular host UTC TCC, with delays
on answering to maintain communication timings.
Indicates which outputs were required to be flashing when last
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