Get Local Statistics

Description

A Get Local Statistics operation reads the data from the local node in one cycle and does not require a master transaction path.To program an MBP_MSTR block to Get Local Statistics, use function code 3.

Network Implementation

A Get Local Statistics operation can be performed on Modbus Plus and TCP/IP Ethernet networks.

Control Block Usage for Modbus Plus

Register	Meaning
CONTROL[1]	3 = get local statistics
CONTROL[2]	Indicates the error status
CONTROL[3]	Number of addresses to be read from local statistics (1 ... 54) Note: The size of databuf must be at least the size of this entry.
CONTROL[4]	First address from which the statistics table must be read (Reg1=0)
CONTROL[5]	Routing register 1 is used to specify the address (routing path address 1 of 5) of the node during a network transfer. The last byte in the routing path that is not 0 is the destination mode.

Control Block Usage for TCP/IP Ethernet

Register	Meaning
CONTROL[1]	3 = get local statistics
CONTROL[2]	Indicates the error status
CONTROL[3]	Number of addresses to be read from local statistics (1 ... 38) Note: The size of databuf must be the size of this entry.
CONTROL[4]	First address from which the statistics table must be read (Reg1=0)
CONTROL[5]	Routing register Most significant byte: Network adapter module slot
CONTROL[6] ... CONTROL[9]	Not used