LMV Series
Technical Instructions
Document No. LV3-1000
SCC Inc.
Page 17
Section 7
Modbus in connection with ACS410 / AZL2…
If the ACS410 PC tool is being used while writing to the LMV3 via Modbus, it must be taken into
consideration that write access via Modbus will be rejected if, at the same time, the ACS410 also makes
a write access to parameters. Also, the simultaneous setting of a parameter from the AZL2… and the
Modbus master must be avoided, since it would not be possible to predict who is granted the access
right. Write access via Modbus is possible at any time, independent of the AZL2… or ACS410 PC tool.
Error Handling
In the event of erroneous telegrams (CRC errors, etc.), the AZL2… does not send an exception code
(refer to Modbus definition), but ignores the messages. This is because commercially available Modbus
drivers do not normally respond to exception codes.
Summary of Contents for LMV3 series
Page 1: ...Combustion Controls LMV3 Linkageless Burner Management System www scccombustion com ...
Page 2: ...Intentionally Left Blank ...
Page 41: ...LMV Series Technical Instructions Document No LV3 1000 SCC Inc Page 13 Section 2 ...
Page 42: ...Technical Instructions LMV Series Document No LV3 1000 Section 2 Page 14 SCC Inc ...
Page 43: ...LMV Series Technical Instructions Document No LV3 1000 SCC Inc Page 15 Section 2 ...
Page 44: ...Technical Instructions LMV Series Document No LV3 1000 Section 2 Page 16 SCC Inc ...
Page 45: ...LMV Series Technical Instructions Document No LV3 1000 SCC Inc Page 17 Section 2 ...
Page 46: ...Technical Instructions LMV Series Document No LV3 1000 Section 2 Page 18 SCC Inc ...
Page 223: ...Intentionally Left Blank ...