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2-2. Description of Blocks
(1) Bus interface block
Interface block with the PCI bus.
This block consists of the interface IC dedicated to PCI bus and a serial EEPROM, etc.
(2) Drive control blocks
These blocks output serial pulses for motor control. The blocks mount pulse generators MCC05v2 for
individual 4 axes, so the 4 axes can be independently driven.
For distinction among the 4 axes, these drive control blocks are called X axis MCC05v2, Y axis MCC05v2,
Z axis MCC05v2 and A axis MCC05v2 respectively.
(3) Counter blocks
This counter block consists of the ADDRESS COUNTER, general purpose PULSE COUNTER and DIFFERENTIAL COUNTER.
The ADDRESS COUNTER is used for counting pulses from the MCC05v2, the general purpose PULSE COUNTER is used
for counting external 90゜phase shifted clocks and the DIFFERENTIAL COUNTER is used for counting deviation
of these pulses.
This block allows to read a counting any time as needed, preset a count or interrupt at any counting
(or deviation level).
(4) General-purpose I/O block
This block is provided with 4 inputs and 4 outputs isolated by photo coupler.
Because of a +24V coupler interface, it can control relays and solenoid valves.
The host controls this block completely independent of the other blocks.
(5) Additional I/O block
This block is provided with 32 inputs and 24 outputs isolated by photo coupler.
Because of a +24V coupler interface, it can control relays and solenoid valves.
4 of 32 inputs can generate an interrupt at the time of ON or OFF.
The host controls this block completely independent of the other blocks.
(6) Board identifier port
When more than two C-875s are used, the boards must be numbered. This is used only for the port.
(7) User interface block
Interface block for signals of the servo/stepping motor drivers and sensors, etc.
Summary of Contents for C-875
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