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) 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) 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] |
Most significant byte: Network adapter module slot |
CONTROL[6] ... CONTROL[9] |
Not used |