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L I Q U I D L E V E L I N D I C AT O R - INSTRUCTION MANUAL
22
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Appendix A: MODBUS communication
A1.1
When are installed two or more units, it is necessary
to differentiate the MODBUS address changing the
dip-switches position.
The available Comem eOLI addresses are
• 128 to 143 (default).
Figure 26
MODBUS address
4
3
2
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
ON
OFF
ON
ON
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
ON
OFF
ON
ON
ON
OFF
ON
ON
OFF
ON
ON
ON
ON
ON
ON
Table 8
1
ADDRESS
OFF
143
ON
142
OFF
141
ON
140
OFF
139
ON
138
OFF
137
ON
136
OFF
135
ON
134
OFF
133
ON
132
OFF
131
ON
130
OFF
129
ON
128
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