9 Modbus RTU – integrated Modbus port specification
9.3 Modbus register map
PXR Electronic trip unit 01/21 MN012005EN www.eaton.com 61
Table 26: Setting group 1: “protection group”
Register
number
Bit
field
Mask field Setpoint name R/W Format Description or value Unit
403000 15 – 0 0xFFFFFF Password W Encoded 0000 (default setting)
403001 15 – 0 0xFFFFFF Group 1 = protection R/W 0x01FF
403002 12 – 0 0x1FFFF Rated current R Encoded NZM2: 25, 40, 63, 90, 100, 140, 160, 200,
220, 250, 300
NZM3: 250, 350, 400, 450, 600, 630
NZM4: 550, 600, 630, 800, 875, 1000,
1200, 1250, 1400, 1600
A
403003
2 – 0 0x0007 Frame size R Encoded The frame size indicates the breaker
type.
11: NZM2
12: NZM3
13: NZM4
403004 3 – 0 0x000F Trip type version - part 1 R Encoded Bit 0: LdSel: with overload protection
I
r
=1
Bit 1: SdSel: with short-time delayed
short-circuit protection I
sd
= 1
Bit 2: InstSel: with instantaneous short-
circuit release I
i
= 1
Bit 3: GfSel: with ground-fault protection
I
g
= 1
Bit 4: ARMSel: with maintenance mode =
1
Bit 5: OvrideSel: with instantaneous
release function = 1
Bit 6: not used
Bit 7: MotorSel: with motor-protection
function = 1
Bit 8: NeuSenorSel: 4-pole device = 1
3-pole device = 0
Bit 9: ThermalSel: with thermal memory =
1
Bit 12: VoltSel: with voltage meter = 1
Bit 13:
0: PXR20
1: PXR25
403005 Trip type version - part 2 R Encoded Bit 0: ModbusSel: with integrated
Modbus RTU = 1
Bit 1: CAMSel: with CAM RS422 = 1
Bit 2: IOModuleSel: with IO module = 1
Bit 3: RelaySel: with relay module = 1
Bit 4: ZSISel: with zone selectivity = 1
Bit 12: NZM_ACB_Sel:
degree of protection
0: IZMX
1: NZM
Bit 13: IECSel:
0: UL
1: Standard IEC
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