57C435
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57C435 Information: |
Reliance Electric 57C435. 57435. The Automax Processor modules plugs into the backplane of an Automax rack and executes application programs which, in turn, control other Automax or DCS modules in the system. The processor modules have the following memory/speed configuration: 25 mHz CPU speed, and 512K parity RAM. Each processor contains 32K of EPROM for board-level diagnostics and boot software. Processors have 290K available for application tasks. Processor modules come equipped with on-board battery back-up to protect against power failures. External battery back-up is therefore not required for racks containing a single processor module. Each processor module has a local watchdog timer which must be reset by the operating system within a specified interval or the processor will execute a STOP ALL and all I/P modules in the local rack will be reset. The I/O modules in the rack will also be reset if you remove a processor module from a single-processor configuration. There are also two RS-232 serial ports on the front of each processor module. They are accessed through DB-25 connectors on the faceplate. The processor module has four status indicators on the faceplate: a green LED labeled \\\"OK\\\", an indicator light labeled \\\"BAT. OK\\\" for the on-board battery back-up and presence of 115 VAC power, and two seven-segment LEDs used to display status and error codes. The \\\"OK\\\" indicator is controlled by the local hardware watchdog timer on the processor.