JUMO mTRON T Manual page 73

Parameter Selection/settings
Interface The selection determines whether the frame is actively transmitted as a master or
only available for requests as a slave. In case of a Modbus master, the interface on
which the relevant frame is used is also specified. If it is a LAN interface, the exter-
nal device to be addressed must also be selected.
Modbus slave
Modbus master TCP 1
Modbus master TCP 2
Modbus master TCP 3
Modbus master TCP 4
Modbus master serial 1
Modbus master serial 2
Device address 0 to 1 to 255
Modbus 0x0000 to 0xFFFF
start address
(master)
Modbus 0x8800
start address
(slave)
Entry 1 to Select the desired entry (double-click
entry 64 the line with the entry or marking and
then confirm using the "Edit" button).
Frame length 0 to 254
Error code -3.37E+38 to +3.0E+37 to +3.37E+38
6 User frames
Description
Compiled frame only available for
requests as a slave
Modbus master; Modbus TCP via LAN
(Ethernet), device 1 addressed
Modbus master; Modbus TCP via LAN
(Ethernet), device 2 addressed
Modbus master; Modbus TCP via LAN
(Ethernet), device 3 addressed
Modbus master; Modbus TCP via LAN
(Ethernet), device 4 addressed
Modbus master; Modbus RTU via Com1
Modbus master; Modbus RTU via Com2
Device address of the external device
(Modbus slave).
Modbus start address (offset) of the
external slave device (central process-
ing unit as a Modbus master)
The setup program uses the start
address as an initial value for the
addresses of the entries. The Modbus
description of the external device must
be observed for this.
Displays the Modbus start address (off-
set) of the central processing unit if this
frame is to be requested as a Modbus
slave.
The start address is used for the setting
in the external Modbus master.
Displays the frame length (byte(s))
Value (code) that is transmitted instead
of the measured value if an error occurs
(for measured values in the float for-
mat).
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