55xGenComm1_29
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GenComm Page 28 - State Machine State Strings
1. Each string consists of 32 Unicode characters with the first character is at the lowest register
address, NULL terminators are not used.
2. The contents of these strings may change at any time when the corresponding state machine
changes state, refer to the ‘generating set status information’ page for details.
3. A complete string must be read with a single query to avoid the possibility of reading parts from
different strings, any attempt to read part of a string will return extended exception 13 (Block
violation).
4. Up to 3 complete consecutive strings can be read with a single query, limited only by the packet
size limitations of Modbus.
5. Reading a string causes the corresponding state machine status code in the ‘generating set
status information’ page to change to 0.
6. A string can be read regardless of the state machine status code.
7. Reading the string for a unimplemented state machine will return 32 spaces (Unicode 0x0020).
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Registers
These are read only registers.
Register offset
Name
Bits
0
S.M. 1 state string
512
32
S.M. 2 state string
512
64
S.M. 3 state string
512
96 – 255
Reserved
