CHAPTER 2: MODBUS COMMUNICATION MEMORY MAP
UR FAMILY – COMMUNICATIONS GUIDE 2-121
2
" 7EB2 BG Loop Reactance -2147483647 to 
2147483647
ohm 1 F060 0
" 7EB4 BG Loop Impedance Magnitude 0 to 2147483647 ohm 1 F060 0
" 7EB6 BG Loop Impedance Angle -359.9 to 0 degrees 0.1 F002 0
" 7EB7 CG Loop Resistance -2147483647 to 
2147483647
ohm 1 F060 0
" 7EB9 CG Loop Reactance -2147483647 to 
2147483647
ohm 1 F060 0
" 7EBB CG Loop Impedance Magnitude 0 to 2147483647 ohm 1 F060 0
" 7EBD CG Loop Impedance Angle -359.9 to 0 degrees 0.1 F002 0
Distance Loop Impedance (Read Only)
D30, D60, G60, 
L60, L90, T60
7EC0 Dist Zab Mag 0 to 655.35 ohm 0.01 F001 0
" 7EC1 Dist Zab Ang -359.9 to 0 degrees 0.1 F002 0
" 7EC2 Dist Zbc Mag 0 to 655.35 ohm --- F001 0
" 7EC3 Dist Zbc Ang -359.9 to 0 degrees 0.1 F002 0
" 7EC4 Dist Zca Mag 0 to 655.35 ohm 0.01 F001 0
" 7EC5 Dist Zca Ang -359.9 to 0 degree 0.1 F002 0
" 7EC6 Dist Zag Mag 0 to 655.35 ohm 0.01 F001 0
" 7EC7 Dist Zag Ang -359.9 to 0 degree 0.1 F002 0
" 7EC8 Dist Zbg Mag 0 to 655.35 ohm 0.01 F001 0
" 7EC9 Dist Zbg Ang -359.9 to 0 degree 0.1 F002 0
" 7ECA Dist Zcg Mag 0 to 655.35 ohm 0.01 F001 0
" 7ECB Dist Zcg Ang -359.9 to 0 degree 0.1 F002 0
Neutral Overvoltage (Read/Write Grouped Setting) (3 Modules)
All except B90, 
C30, N60, T35
7F00 Neutral Overvoltage 1 Function 0 to 1 --- 1 F102 0 (Disabled)
" 7F01 Neutral Overvoltage 1 Signal Source 0 to 5 --- 1 F167 0 (SRC 1)
" 7F02 Neutral Overvoltage 1 Pickup 0.004 to 3 pu 0.001 F001 300
" 7F03 Neutral Overvoltage 1 Pickup Delay 0 to 600 s 0.01 F001 100
" 7F04 Neutral Overvoltage 1 Reset Delay 0 to 600 s 0.01 F001 100
" 7F05 Neutral Overvoltage 1 Block 0 to 4294967295 --- 1 F300 0
" 7F07 Neutral Overvoltage 1 Target 0 to 2 --- 1 F109 0 (Self-reset)
" 7F08 Neutral Overvoltage 1 Events 0 to 1 --- 1 F102 0 (Disabled)
" 7F09 Neutral Overvoltage 1 Curves 0 to 3 --- 1 F116 0 (Definite 
Time)
" 7F0A Reserved (7 items) 0 to 65535 --- 1 F001 0
" 7F11 ...Repeated for Neutral Overvoltage 2
" 7F22 ...Repeated for Neutral Overvoltage 3
Auxiliary Undervoltage (Read/Write Grouped Setting) (3 Modules)
C60, D30, D60, 
F35, F60, G30, 
G60, L30, L60, 
L90, M60, T60
7F60 Auxiliary Undervoltage 1 Function 0 to 1 --- 1 F102 0 (Disabled)
" 7F61 Auxiliary Undervoltage 1 Signal Source 0 to 5 --- 1 F167 0 (SRC 1)
" 7F62 Auxiliary Undervoltage 1 Pickup 0.004 to 3 pu 0.001 F001 700
" 7F63 Auxiliary Undervoltage 1 Delay 0 to 600 s 0.01 F001 100
" 7F64 Auxiliary Undervoltage 1 Curve 0 to 1 --- 1 F111 0 (Definite 
Time)
Products Address Register name Range Units Step Format Default