S
IN
A
MICS G1
20 CU250
S
-2 Contr
ol
Units
List Manual, 09/201
7, A5E33842890
79
5
3
F
un
ction dia
g
ra
ms
3.
7
C
ommun
ication field
bus inter
fa
ce (USS, Mo
dbu
s)
F
ig.
3
-52
93
10 – Config
uration
, add
resses
a
nd di
agno
stics
- 9310 -
Function diagram
8
7
6
5
4
3
2
1
fp_9310_97_66.vsd
Fieldbus Interface (USS, Modbus)
G120 CU250S-2
05.09.2017
V4.7.9
Configuration, addresses and diagnostics
t
T
0
Fieldbus configuration
Monitoring functions
Cyclic telegrams from
the master
F01910 "Fieldbus IF: setpoint
timeout"
No telegrams from the master
Diagnostic parameters
Fieldbus t_monit
0 ... 1999999 [ms]
p2040 (100)
USS
configuration
Modbus
configuration
Telegrams to the
master
Fieldbus times
p2024
Field bus USS PKW
p2023
Field bus USS PZD
p2022
Field bus baud
p2020
Field bus baud
p2020
No protocol
Field bus error
r2029
ON
1 2 4 8 16 32 64
>0
Significance
POWER ON
Actual address
Memory
SET
p2021
BUS ADDRESS
>0
POWER ON
Memory
SET
p2021
0
Field bus protocol
0 ... 2
p2030 (0)
1
2
Field bus address
p2021
Field bus address
p2021
1
All DIP switches to OFF
==> set the address using p2021
Modbus parity
p2031