t.a.c. TAC Xenta 511, Handbook

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TAC Xenta 511 and 911 Handbook 3 TAC Xenta 911
TAC AB, 16 May 2003 0-004-7870-0 (EN), 27 (32)
3.4 Operation and Service
3.4.1 LED Indicators
LON Neuron status
Off Normal Mode
Red, blinking Unconfigured Node
Red, steady Hardware Fault
Fail-safe state
Shorting terminals Fail-safe 9 and 10 will put the unit in “fail-safe”
state. This may be used in an emergency if the system program keeps
halting.
The position of the switch is noted directly after powering on.
Overall status indicator
Green, steady: Program in normal mode
Green, blinking: Program in start mode
Red, steady: Fail-safe mode (see description above)
Red, blinking: Unit error
3.4.2 Service Utilities
System service functions are available using the web browser and are
situated under the Utilities menu. They are primarily intended to pro-
vide technical information about the system and its status, and they can
be printed to a file or a printer.
MMC
10Base-T A RS232 B
LON
Fail-
safe
Rx/Tx
9 10
TAC Xenta 911 status indicators
Rx indicator RS232 B (yellow)
Tx indicator RS232 A (yellow)
Overall Run indicator (green/red)
Neuron status (red)
Ethernet activity (yellow)
Ethernet connector
Socket for MMC memory and activity indicator (yellow)
Service Pin