Description

A clear remote statistics operation clears remote-node values from words 13 ... 22 in the statistics table of the local node. It uses a master transaction path and may require several cycles to complete. To program an MBP_MSTR block to perform a clear remote statistics operation, use function code 8.

Network Implementation

A clear remote statistics operation can be performed on Modbus Plus and TCP/IP Ethernet networks.

Control Block Usage for Modbus Plus

Register

Meaning

CONTROL[1]

8 = clear remote statistics

CONTROL[2]

Indicates the error status

CONTROL[3]

Reserved

CONTROL[4]

Reserved

CONTROL[5]

...

CONTROL[9]

Routing register 1 is used to specify the address (routing path address 1 of 5) of the destination 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]

8 = clear remote statistics

CONTROL[2]

Indicates the error status

CONTROL[3]

Reserved

CONTROL[4]

Reserved

CONTROL[5]

Routing Register

Most significant byte: network adapter module slot

CONTROL[6]

...

CONTROL[9]

Each address contains one byte of the 32-bit IP address, where the MSB is in CONTROL[6] and the LSB is in CONTROL[9].