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System Manager Software (SMS) will only scale by factors of 10, but there is a way around this by using a virtual circuit node and if necessary a meter with available utility registers. PM800s, CM3000s, and CM4000s all have a block of 200 utility registers starting at register 15,800. These are empty read/write registers that a user can use to store values.
User has a third party device such as Caterpillar EMCP (Electronic Modular Control Panel) which uses non-standard scaling calculations
User has a PowerLogic meter which has available utility registers
For example, assume the desired value requires a scale factor of 0.026 and a offset of -200: