6.5. RESISTIVE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT .......................................... 46
6.6. REMOTE MONITORING OF OUTPUT VOLTAGE AND CURRENT ................................................................. 47
7. RS232 & RS485 REMOTE CONTROL................................................................................................ 49
7.1. INTRODUCTION................................................................................................................................................................... 49
7.2. CONFIGURATION................................................................................................................................................................ 49
7.2.1 Default setting...................................................................................................................................................................... 49
7.2.2 Address setting.................................................................................................................................................................... 49
7.2.3 RS232 or RS485 selection............................................................................................................................................... 49
7.2.4 Baud rate setting................................................................................................................................................................. 49
7.2.5 Setting the unit into Remote or Local mode............................................................................................................ 50
7.2.6 RS232/485 port in Local mode ..................................................................................................................................... 50
7.2.7 Front panel in Remote mode .......................................................................................................................................... 50
7.3. REAR PANEL RS232/485 CONNECTOR................................................................................................................... 51
7.4. CONNECTING POWER SUPPLIES TO RS232 OR RS485 BUS ....................................................................... 51
7.4.1 Single power supply............................................................................................................................................................ 51
7.4.2 Multi power supply connection to RS232 or RS485 bus..................................................................................... 52
7.4.3 Termination............................................................................................................................................................................ 53
7.5. COMMUNICATION INTERFACE PROTOCOL.......................................................................................................... 53
7.5.1 Data format............................................................................................................................................................................ 53
7.5.2 Addressing.............................................................................................................................................................................. 53
7.5.3 End of Message.................................................................................................................................................................... 53
7.5.4 Checksum............................................................................................................................................................................... 53
7.5.5 Acknowledge ......................................................................................................................................................................... 53
7.5.6 Error message....................................................................................................................................................................... 54
7.5.7 Backspace.............................................................................................................................................................................. 54
7.6. ERROR MESSAGES............................................................................................................................................................ 54
7.7. COMMAND SET DESCRIPTION ...................................
................................................................................................. 55
7.7.1 General guides...................................................................................................................................................................... 55
7.7.2 Command set categories ................................................................................................................................................. 55
7.7.3 Initialization control commands ..................................................................................................................................... 56
7.7.4 ID control commands......................................................................................................................................................... 56
7.7.5 Output control commands............................................................................................................................................... 56
7.7.6 Status control commands................................................................................................................................................ 58
7.8. STATUS, ERROR AND SRQ REGISTERS........................................................................................................................ 59
7.8.1 General.................................................................................................................................................................................... 59
7.8.2 Conditional registers.......................................................................................................................................................... 59
7.8.3 Service Request: Enable and Event Registers ........................................................................................................ 61
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