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14: Tunnel and Modbus Settings
xSenso User Guide 76
Table 14-4 3xxxx Read Only Registers (Function Codes 4 and 23)
Table 14-5 4xxxx Read/Write Holding Registers (Function Codes 3, 16 and 23)
Note: The device will respond to any unit identifier less than 247 since each unit is
uniquely identified by its IP address already.
Device Address Modbus Address Description
30001 0x0000 Input 1 high word of float (Float AB CD)
30002 0x0001 Input 1 low word of float (Float AB CD)
30003 0x0002 Input 2 high word of float (Float AB CD)
30004 0x0003 Input 2 low word of float (Float AB CD)
Device Address Modbus Address Description
40001 0x0000 Output 1 high word of float (Float AB CD)
-1 will be returned if voltage output is shorted.
-2 will be returned if current output is opened.
40002 0x0001 Output 1 low word of float (Float AB CD)
40003 0x0002 Output 2 high word of float (Float AB CD)-1 will be
returned if voltage output is shorted.
-2 will be returned if current output is opened.
40004 0x0003 Output 2 low word of float (Float AB CD)