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What is the purpose of the Register Offsets settings in the M340 Modbus Plus Proxy ?

Goals and Symptoms
Explain the purpose of the Register Offset settings in the M340 Modbus Plus Proxy.

Facts and Changes
M340 Offset Functions are listed below. (reference graphics below)
1. The 1X I/O Bit offset redirects 1x data from Modbus Plus to the M340 PLC %M locations
2. The 3X Register offset redirects 3x data from Modbus Plus to the M340 PLC %MW locations
       a. Offsets only apply to functions such as MSTR, SCADA and HMI
       b. Default values will not conflict with converted legacy applications
       c. Default memory location for 1x = %M2048,
       d. Default memory location for 3x = %MW2048
3. The Legacy Compatibility Offset 0x & 4x by 1 checkbox when enabled will effect the addresses of all functions including PeerCop & Global Data. Legacy compatibility is achieved by adding 1 to accommodate for the difference in         the starting register location in the M340 PLC when using a converted application.
       a. Starting register in M340 PLC is %M0 and %MW0
       b. Legacy offset redirects 000001 to %M1
       c. Legacy offset redirects 400001 requests to %MW1
4. The Starting Address of PeerCop Health Status specifies the starting register in the M340 for the PeerCop Health Status data. The Default (3072) %MW location for the PeerCop & Global Data Health write 12 words to %MW3072 in     M340 PLC.












 
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