Siemens SIMATIC S7 - Page 438

Communication
8.5 PROFIBUS
S7-200 SMART
438 System Manual, V2.3, 07/2017, A5E03822230-AF
The following table summarizes the status indications signified by the EM DP01 status LEDs:
Table 8- 5 EM DP01 PROFIBUS DP module status LEDs
Description
POWER LED
(Green)
DIAG LED
(Dual Red /
Green)
DP ERROR
LED
(Red)
DX MODE LED
(Green)
24 V DC user power good
Green
No 24 V DC user power Off
Internal module failure
Red
Upon startup, until the
EM DP01 is logged in by
the CPU, or if there is a
fault in the EM DP01
Flashing red
While the EM DP01 is
waiting on configuration
and parameterization from
the S7-200 SMART CPU,
or during a firmware up-
date
Flashing green
No fault is present;
EM DP01 is configured
Green
No DP error
Off
DP communications inter-
rupted; Data Exchange
Mode stopped
Red
Parameterization / configu-
ration error (from the
DP Master)
Flashing red
Data Exchange Mode
inactive, or DP communi-
cations interrupted
Off
Data Exchange Mode
active
Green