Tables
Modbus RS485 Interface
Operating Guide
- 13 -
Tables
Standard Value Tables
Commonly used values throughout the Modbus registers.
Table 1 – Supported ASCII Character Set (for use with labels):
Upper Case
A = 65 B = 66 C = 67 D = 68 E = 69 F = 70
G = 71 H = 72 I = 73 J = 74 K = 75 L = 76
M = 77 N = 78 O = 79 P = 80 Q = 81 R = 82
S = 83 T = 84 U = 85 V = 86 W = 87 X = 88
Y = 89 Z = 90
Lower Case
a = 97 b = 98 c = 99 d = 100 e = 101 f = 102
g = 103 h = 104 i = 105 j = 106 k = 107 l = 108
m = 109 n = 110 o = 111 p = 112 q = 113 r = 114
s = 115 t = 116 u = 117 v = 118 w = 119 x = 120
y = 121 z = 122
Numbers
0 = 48 1 = 49 2 = 50 3 = 51 4 = 52 5 = 53
6 = 54 7 = 55 8 = 56 9 = 57
Symbols
= 32 µ = 181 % = 37 ( = 40 ) = 41 + = 43
- = 45 . = 46 / = 47 : = 58 = = 61 \ = 92
^ = 94 Ω = 937 ∑ = 8721 ∏ = 960 ° = 176 ± = 177
= 178 = 179 β = 223
Table 2
– Conventional Conductivity Ranges:
Conductivity Resistivity TDS
1014 = 0 - 9.999 µS/cm 1020 = 0- 99.99MΩ/cm 1024 = 0 - 9.999ppm
1015 = 0 - 99.99 µS/cm 1021 = 0- 9.999MΩ/cm 1025 = 0 - 99.99ppm
1016 = 0 - 999.9 µS/cm 1022 = 0- 999.9kΩ/cm 1026 = 0 - 999.9ppm
1017 = 0 - 9.999 ms/cm 1023 = 0- 99.99kΩ/cm 1027 = 0 - 9999ppm
1018 = 0 - 99.99 ms/cm 1028 = 0 - 99.99ppt
1019 = 0 - 999.9 ms/cm
Table 3 – Electrodeless Conductivity Ranges:
Conductivity TDS Solution
1016 = 0 - 999.9 µS/cm 1026 = 0 - 999.9ppm 1029 = %NaOH
1017 = 0 - 9.999 ms/cm 1027 = 0 - 9999ppm 1030 = %NaCL
1018 = 0 - 99.99 ms/cm 1028 = 0 - 99.99ppt 1031 = %H2SO4
1019 = 0 - 999.9 ms/cm 1032 = HCL
1033 = %H3PO4
1034 = %HNO
1035 = Salinity
1036 = Custom 1
1037 = Custom 2
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