{}

Our Brands

Impact-Company-Logo-English Black-01-177x54

Welcome to the Schneider Electric Website

Welcome to our website.
How can we help you today?
What is the purpose of the Register Offsets settings in the M340 Modbus Plus Proxy ?
Product Line:
M340

Environment:
Ecostruxure Control Expert

Resolution:
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.

Modbus proxy










Schneider Electric India

Explore more
Range:
Articles that might be helpful Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Explore more
Range: