GE Industrial Solutions POWER LEADER ModBus Monitor - Manual (Page 58)

POWER LEADER Modbus Monitor
Appendix A – Modbus RTU Protocol
52
NOTE: Data values in the Monitor are constantly being
updated. Therefore, both registers of a floating point or
long integer value must be read together. If the Monitor
receives a read request for one but not both of the two
registers which represent a floating point or a long
integer value, the Monitor will return Exception Code 84
- Partial Register Access Error.