MODBUS INTERFACE REGISTER FORMATS Introduction M550, M560 and M570 Read Coils function 1 Format M550, M560 and M570 3X Registers Supported Modbus Codes M550, M560 and M570 4X Registers Exception Codes M550, M560 and M570 3X Order functions 30/31 Packet Structures M550, M560 and M570 Relay functions 41/42     M80x, M81x and M84x 3X registers PRODUCTS M80x, M81x and M84x 4X registers Retrieving Measurements from Multitek Products M820 3X registers M550 PowerCom M820 4X registers   M560 PowerSig M850 3X registers M570 PowerRelay M850 4X registers M80x MultiDin M850 3X Order functions 65/66 M81x MultiLed   M850 Energy Relay functions103/104 M84x MultiDigit M820 MultiGen ID function   M850 MultiPower     CYCLIC REDUNDANCY CHECK   CRC Calculations         FLOATING POINT NUMBERS SOFTWARE Implementing the IEEE754 Standard General Monitor Program     M560 Analogue Outputs Set-up RS232 - RS485 CONVERSION   M5xx Modbus Registers Ordering Recommendations   M5xx Monitor Relay Set Up   M5xx Monitor Channel Status   SystemMonitor - Measurement Logging