Element Description for WordArr5 in Modbus Plus

Element description for WordArr5 in Modbus Plus:

Element

Data Type

Description

WordArr5[1]

WORD

Least significant byte:

Routing register 1 is used for address specification (routing path addresses one of five) of the destination node during network transfer.

The last byte in the routing path that is not zero is the destination node.

Most significant byte:

Source node address:

  • slot position of the module when using the Modbus Plus Port on the NOM module

  • set to 0 when using the Modbus Plus Port on the CPU, (regardless of the CPU slot)

WordArr5[2]

WORD

Routing register 2

WordArr5[3]

WORD

Routing register 3

WordArr5[4]

WORD

Routing register 4

WordArr5[5]

WORD

Routing register 5

Element Description for WordArr5 with TCP/IP Ethernet

Element description for WordArr5 with TCP/IP Ethernet

Element

Data Type

Description

WordArr5[1]

WORD

Least significant byte:

MBP on Ethernet Transporter (MET) mapping index

Most significant byte:

Slots of the NOE module

WordArr5[2]

WORD

Byte 4 (MSB) of the 32-bit destination IP address

WordArr5[3]

WORD

Byte 3 of the 32-bit destination IP address

WordArr5[4]

WORD

Byte 2 of the 32-bit destination IP address

WordArr5[5]

WORD

Byte 1 (LSB) of the 32-bit destination IP address

Element Description for WordArr5 with SY/MAX Ethernet

Element description for WordArr5 with SY/MAX Ethernet

Element

Data Type

Description

WordArr5[1]

WORD

Least significant byte:

MBP on Ethernet Transporter (MET) mapping index

Most significant byte:

Slot of the NOE module

WordArr5[2]

WORD

Destination drop number (or set to FF hex)

WordArr5[3]

WORD

Terminator (set to FF hex)

WordArr5[4]

WORD

No significance

WordArr5[5]

WORD

No significance