6-9
If the unit is an EPM 9650 with regular hardware, RMS values are in units of squared secondary, with
two bytes of fraction. That is, each count is 1/65536 of a squared volt.
If the unit is an EPM 9650 with 300 V hardware, RMS values are in units of squared secondary, with 14
bits of fraction. That is, each count is 1/16384 of a squared volt. Units that are 300 Vhardware can be
identified by the appropriate setting in the programmable settings or Hardware Option for 300V, Modbus
Register 0x0FF53.
If the unit is an EPM 9800, RMS values are in units of squared secondary, with 12 bits of fraction. That
is, each count is 1/4096 of a squared volt.
Example:
EPM 9650 with regular hardware:
VAN = 0x038B84000 = 14,520.25 v2 secondary, or 120.5 v secondary
EPM 9650 with 300 V hardware:
VAN = 0x038B84000 = 58,081 v2 secondary, or 241 v secondary
EPM 9800:
VAN = 0x038B84000 = 232,324 v2 secondary, or 482 v secondary
•The next byte holds eight bits representing the Delta of the High Speed Input States. High Speed
Digital Input States are in the following format:
Abit value of 1 means the input changed in the last cycle. A bit value of 0 means the input is
closed.
•The next byte holds eight bits representing the current states of the High Speed Inputs. High
Speed Digital Inputs are in the following format:
Abit value of 1 means the input is open. A bit value of 0 means the input is closed.
Bits
HSI 8 HSI 7 HSI 6 HSI 5 HSI 4 HSI 3 HSI 2 HSI 1
Table 6.2: Current States of the High Speed Inputs
1576 432
HSI 8 HSI 7 HSI 6 HSI 5 HSI 4 HSI 3 HSI 2
Table 6.1 High Speed Digital Input States
1765432 0
Bits
0
HSI 1