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User Manual
EtherNet/IP / M-Bus Master - Converter
Document code: MN67077_ENG Revision 1.100 Page 28 of 39
SINGLE SLAVE MODE FUNCTIONING:
By checking the field “Single Slave Mode” it is possible to save 500 bytes of data for a single M-Bus Slave Device.
For having the data it is necessary that the Master EtherNet/IP writes the first four bytes of his Input Data with the Primary or Secondary
Address of the slave which want to receive the data.
Example of DeviceNet Master OUT array (data that a master DeviceNet send) using the Primary Address of the Slave M-Bus
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
0x00
0x00
0x00
0x3A
Empty or
other values
Empty or
other values
Empty or
other values
Example of DeviceNet Master OUT array (data that a master DeviceNet send) using the Secondary Address of the Slave M-Bus
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
0x28
0x45
0x65
0x71
Empty or
other values
Empty or
other values
Empty or
other values
If the address is defined in the section M-Bus and the reply frame of the slave interrogated is received, the Converter puts the requested
address in the first four bytes. Then follow the normal data of the selected slave.
Example of EtherNet/IP Master IN array (data that a master EtherNet/IP receive) using the Primary Address of the Slave M-Bus
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
0x00
0x00
0x00
0x3A
Data …
…
… Data
Example:
In “Set Communication” the “N Byte OUT” is 30.
There was defined these variables:
Var.1
: 32 bit, No Scale;
Var.2
: 48 bit, No Scale;
Var.3
: 16 bit, Si Scale;
Var.4
: 64 bit, Si scale.
The EtherNet/IP array is the follow:
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Byte 9
Var.1
Var.1
Var.1
Var.1
Var.2
Var.2
Var.2
Var.2
Var.2
Var.2
Byte 10
Byte 11
Byte 12
Byte 13
Byte 14
Byte 15
Byte 16
Byte 17
Byte 18
Byte 19
Var.3
Var.3
Var.3 Scale
Var.4
Var.4
Var.4
Var.4
Var.4
Var.4
Var.4
Byte 20
Byte 21
Byte 22
Byte 23
Byte 24
Byte 25
Byte 26
Byte 27
Byte 28
Byte 29
Var.4
Var.4 Scale
