TRICONEX 4500 Voltage monitoring module

Auto Scanning This default operating mode is selected by a reset operation, or by clearing both CCR mode control bits. All active channels are scanned continuously in this mode, and any channel can be read at any time without affecting the scanning operation. To set the board for Auto Scanning, either do a reset operation or write $5800 to the CCR (relative address $0004). The indicated CCR code also establishes the following conditions: 

• 64-word buffer 

• 64-channel block size 

• Interrupt on data ready flag if interrupt is enabled 

• Fixed gain x1

Single Scan Software Triggered

 Write $8000 to CSR (relative address $0002). This enables the software trigger. The indicated CSR code also establishes the following conditions: • LED turned off 

• Data stored in offset binary format 

• Interval timer configured as 16-bit counter 

• Data ready flag activated at end of data buffer Write $5840 to CCR (relative address $0004). This sets the scan mode to single scan. the indicated CCR code also establishes the following conditions: 

• Buffer size of 64 words 

• Block size of 64 channels 

• Interrupt on data ready flag if interrupt is enabled 

• Fixed gain x1 The previous two steps set the board up for single scan software trigger. To initiate the scan process, write to relative board address $000E. The data written to this register is arbitrary

Single Scan 

The Single Scan operating mode samples all the active channels one time and stops. The scan sequence will not start again until the selected trigger mode is initiated. The Single Scan mode can be triggered by a software command, external trigger, or by the interval timer. The steps to program single scan in each of these cases is described below

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