SCH2 Technical Manual TSP016.doc Issue 3.0 – January 2005
Money Controls 2005. All rights reserved.
Page 12 of 61
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Data integrity. All coin counter values in NV Memory are stored with a 8-bit checksum to
ensure data integrity.
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Level plate support. There is an option to fit high or low level plates and the status of
these can be read by the host machine on serial.
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Remote configuration. Motor parameters such as reversing current and payout timeout
can be changed with serial commands. No changes to electronic components are
required.
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Multi-drop operation. A number of serial hoppers can be connected to the same serial
bus. Device addresses default to those determined by the wiring harness but they can be
changed in software to any 8-bit value.
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User memory. 10 bytes of non-volatile memory are available for unrestricted use by the
host machine. There are various security and auditing tasks which could be
accomplished with this feature.
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Extensive command set. Host software can implement a small or large fraction of the full
command set available depending on the application. Commands are available for
inhibiting the hopper, reading the state of the exit optos, checking the software revision
etc.
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Diagnostic and error reporting. Full access to diagnostic and error codes are made
available over serial.
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Code protection. The software is protected with an internal, independent, watchdog
circuit. A ‘crash’ in the software will result in a clean reset of code.
Summary of Contents for SCH2
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