Siemens TC12 Installation, Commissioning And Maintenance Handbook page 123

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3.3.3.67 Flow Counters (GCU)
GCU (Unit number: 0 - 5)
Comment:
Note: The counts are stored as words, so only the least significant byte is
displayed. Also see the ERD command.
3.3.3.68 Occupancy Counters (GOU)
GOU (Unit number: 0 - 5)
Comment:
Note: The counts are stored as words, so only the least significant byte is
displayed.
3.3.3.69 Queue Signals (GQU)
GQU (Unit number: 0 -5)
Comment:
3.3.3.70 Override Digital Inputs Enable/Disable (GIO)
GIO = 1 <enter>
Comment:
3.3.3.71 Digital Inputs Override Data (GID)
GID (Reply byte number: 0-13) = (binary byte: 0 - 11111111)
Comment:
3.3.3.72 Override Digital Outputs Enable/Disable (GOO)
GOO = 1 <enter>
Comment:
666/HE/43100/000
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Test / Maintenance Commands
Enables the flow counters to be displayed.
Enables the occupancy counters to be displayed.
Enables the queue signal counters to be displayed.
Replaces the reply data with test data entered using the GID
command - see below. The override can be disabled by entering
GID = 0 and is also removed when the handset is disconnected.
Allows test data patterns for up to 13 reply bytes to be entered. The
data is actually output when the override is enabled using the GIO
command.
Replaces the control data with test data entered using the GOD
and GTC commands - see below. The override can be disabled by
entering GOO = 0 and is also removed when the handset is
disconnected or after the 'GOT' timeout has expired (see below).
With PB392 firmware (issue 4 or later) the GOO command displays
GOO:2 whilst the override is active. If the special PLD is fitted
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