Operating Mode Modbus Registers - ABB SM500F User Manual

SM500F
Field mountable paperless recorder
B.5 Operating Mode Modbus Registers
Tables B.11 to B.13 detail the contents of the Modbus TCP registers accessible while the recorder is in the
operating mode.
Two data types are used:

32-bit single precision floating point data in IEEE format

64-bit double precision floating point data in IEEE format
Note.

When writing to a parameter that occupies more than one register position then all registers
relating to that parameter MUST be written to as part of a multiple register write. If this is not
achieved a NAK exception response is issued. Individual registers can be read without causing an
exception response.

When accessing a parameter that occupies more than one register position, the lowest numbered
register contains the most significant data.
Read Only, single
precision IEEE floating
point number
Analog Input
A1
B1
B2
C1
C2
D1
D2
Table B.11 Analog Inputs
Alarm Trip Point
Registers
1.1A 0101 and 0102
1.1B 0103 and 0104
1.1C 0105 and 0106
1.1D 0107 and 0108
1.2A 0109 and 0110
1.2B 0111 and 0112
1.2C 0113 and 0114
1.2D 0115 and 0116
1.3A 0117 and 0118
1.3B 0119 and 0120
1.3C 0121 and 0122
1.3D 0123 and 0124
Table B.12 Alarm Trip Levels
156
Modbus Register
0001 and 0002
0003 and 0004
0009 and 0010
0005 and 0006
0011 and 0012
0007 and 0008
0013 and 0014
Alarm Trip Point
Registers
1.4A 0125 and 0126
1.4B 0127 and 0128
1.4C 0129 and 0130
1.4D 0131 and 0132
1.5A 0165 and 0166
1.5B 0167 and 0168
1.5C 0169 and 0170
1.5D 0171 and 0172
1.6A 0173 and 0174
1.6B 0175 and 0176
1.6C 0177 and 0178
1.6D 0179 and 0180
Appendix B – Modbus TCP/Modbus 485
Alarm Trip Point
Registers
2.1A 0133 and 0134
2.1B 0135 and 0136
2.1C 0137 and 0138
2.1D 0139 and 0140
2.2A 0141 and 0142
2.2B 0143 and 0144
2.2C 0145 and 0146
2.2D 0147 and 0148
2.3A 0149 and 0150
2.3B 0151 and 0152
2.3C 0153 and 0154
2.3D 0155 and 0156
Alarm Trip Point
Registers
2.4A 0157 and 0158
2.4B 0159 and 0160
2.4C 0161 and 0162
2.4D 0163 and 0164
2.5A 0181 and 0182
2.5B 0182 and 0184
2.5C 0185 and 0186
2.5D 0187 and 0188
2.6A 0189 and 0190
2.6B 0191 and 0192
2.6C 0193 and 0194
2.6D 0195 and 0196
IM/SM500F Rev. Z