Moeller DF51 - Serial interface (Modbus); General information about Modbus; Communications in a Modbus network

10/05 AWB8230-1541GB
System settings
143
Parameter access inhibit (SFT)
When you activate the digital input configured as SFT (terminal 1
to 5), the entered Parameter values are write-protected.
X With PNU b031, specify whether software protection will also
apply to the reference frequency input (PNU A020, A220, A021
to A035, A038 and F001).
X Then configure one of the digital inputs 1 to 5 as SFT by setting
the corresponding PNU (C001 to C005) to 15.
Parameter inhibit (PNU b031)
Parameter inhibit is active when the SFT input is active. Depending
on the value of PNU b031, access to some parameters is permitted
even with parameter protection activated.
Some parameters can not be accessed in RUN mode. These are
marked “–” in the RUN column. With PNU b031 you can extend
parameter access in RUN mode. These additional parameters are
marked “j” in the “b031=10” column.
Figure 149:Digital input 3 configured as SFT (software protection)
SFT
FWD
P2413
Run b031
= 10
– j
h
Parameter inhibit restricts parameter access but does not
provide password protection.
PNU Name RUN b031
= 10
Value Function DS
b031 Parameter
access inhibit
(access rights)
– j 00 Access to all parameters except PNU b031 disabled when digital input
SFT is enabled (a PNU C001: 15)
01
01 Access to all parameters except PNU b031 and F001 (A020, A220,
A021 to A035, A038) disabled when digital input SFT is enabled
(a PNU C001: 15)
02 Access to all parameters except PNU b031 disabled
03 Access rights to all parameters except PNU b031 and F001 (A020,
A220, A021 to A035, A038) disabled
10 Extended access rights to parameters in RUN mode.