Modbus Master Parameter (Modbus Master Info); Modbus Parameters Which Are Valid For The Entire Device - Honeywell EK280 Applications Manual

EK280

8.2.3 Modbus Master Parameter (Modbus Master Info)

The Modbus master info which is to be parameterized is configured separately. The connection parameter
"connection_protocol info" (LIS address x:D79) refers to the Modbus master info instance (1-8), which should
be used for the link. Individual Modbus master info can be used for each link.
Display Designation
MMDir Modbus_Master_AdrDirec
tion
MMTrM Modbus_Master_TransMo
de
MMAdr Modbus_Master_SlaveAd
dress
MMAdM Modbus_Master_Address
Modus
MMALx Modbus_Master_TaskListI
ndex
MMAAz Modbus_Master_TaskList
NoTasks

8.2.4 Modbus parameters which are valid for the entire device

Some parameters cannot be parameterized for each link, but are valid regardless of the interface as well as
for Modbus master operation via all links as well as for Modbus slave operation.
Designation
Modbus_DeviceAddress
Modbus_RegisterSize
Table 9: Interface-dependent Modbus parameters for master and slave operations
46 "x" = Instance of the task (value range from 1-70)
"x" = instance of the interface (2 = terminal device (external modem), 3 = internal modem
47
Application Manual
Meaning
Data direction
Transmission mode
Modbus slave address of
the remote object
Addressing mode
Index (instance) on the task
list as first task (1..70)
Number of tasks from the
list index
Table 8: Modbus master info
Meaning
Own Modbus address
Register size = number of
bytes per register
Address
MBAdr
"x" 46
x:7C0 0: H-Wort first
1: L Word first
x:7C1 0: ASCII
1: RTU
2: RTU_TCP
x:7C2 Range: 0..247
x:7C3 0: Log. mode
1:Phys. Addressing
x:7C4 1..70
x:7C5 1..70
Address
MBAdr
"x"
47
x:7B2 0...247 valid for the entire device. It
is the same as in slave mode
x:7B8 2: 2 bytes (for 16-bit registers)
4 4 bytes (for 32-bit registers)
This applies to the entire device
regarding Modbus communication
(master and slave)
179