JUMO LOGOSCREEN nt Interface Description page 36

5 Serial protocol types
Modbus master
36
- external texts 1 to 9 (e.g. in order to combine batch texts in the instrument)
Slave
Logoscreen nt
(Master)
These parameters can be edited in the setup program and on the
Logoscreen nt.
For each target variable, you can enter the device address and the Modbus
address from which the value will be requested.
Every programmed request can be switched to inactive by entering the device
address 0 (e.g. if "external analog value 5" is no longer to be written by the
Modbus master, but from the Profibus).
Double writing of a target variable will lead to undefined states, and
must be avoided!
Slave
Modbus
Slave