Appendix D—Modbus Register Map
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
www.eaton.com
417
8004
Control User Interface Input
Debounce
UINT16 RW NV
Array size: 4
Default: 20
Range: 5 to 5000
Units: ms
Config CRC
Admin Lock
USB Lock
Backup Mem
Array of debounce values for the Control User Interface digital inputs
(C445UC… versions only). A debounce value exists for each input. The
debounce applies to both rising and falling edge.
Array of 4 registers
8027
Measurement Module
Board Ambient Temp
SINT16 RO
Units: °C
Measurement Module Ambient temperature measured on the PCB.
8028
Measurement Module Max
Board Ambient Temp
SINT16 RW NV
Default: –40
Units: °C
Measurement Module Maximum ambient temperature measured on the
PCB. This value can be set (typically to -40).
8145
Supply Voltage Low Flag
BOOL RO
Flag indicates the power supply voltage is too low to pull in the output
relays
8502
Control Word with NetCtrl
bit
BYTE RW
Bitfield
Network Control Word with NetCtrl bit Bit 0: Run1 Bit 1: Run2 Bit 2:
Reserved Bit 3: Fault Reset Bit 4: NetCtrl Bit 5: Test Trip Bit 6: Reserved
Bit 7: Reserved
Table 128. C445 Modbus Register Map, continued
Register
Name
Attribute
Description
Bit
Description
Coil
0
Run1 command
n/a
1
Run2 command
n/a
2
Reserved
n/a
3
Reset fault
n/a
4
Remote control enable (Allow control
commands from this control word)
n/a
5
Test trip the device
n/a
