Yokogawa JUXTA VJ Series Limit Alarms - Manual (Page 44)

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<5. MODBUS Communication >
IM 77J01J11-01E 3rd Edition : Oct. 15, 2007-00
5.2 Function Codes
5.2.1 List of Function Codes
Function codes are command words used by the higher-level device to obtain the D regis-
ter information of the VJ Series signal conditioners.
Table 5-2 List of Function Codes
Code Number
03 Reads data from multiple
D registers. Capable of reading data from a maximum of 64 successive
D registers between D0001 and D0128.
Performs a loop back test. 08 See subsection 5.2.2, “Function Codes”.
Function Description
050201E.EPS