4
)
This message appears, if externally voltages at one or more terminals
DO0...DO7 cause that other digital outputs are supplied through that
voltage (voltage feedback, see description in section Electrical Connec-
tion
Ä
Chapter 1.7.5.1.3 “Electrical Connection” on page 944). All out-
puts of the apply digital output groups will be turned off for 5 seconds.
The diagnosis message appears for the whole output group.
5
)
The voltage on digital outputs DO0...DO7 has overrun the process
supply voltage UP3 (see description in section Electrical Connection
Ä
Chapter 1.7.5.1.3 “Electrical Connection” on page 944). Diagnosis
message appears for the whole module.
6
)
This message appears, if the output of a channel DO0...DO7 should be
switched on while an externally voltage is connected. In this case the
start up is disabled, as long as the externally voltage is connected. Oth-
erwise this could produce reverse voltage from this output to other digital
outputs. This diagnosis message appears per channel.
7
)
Short circuit: After a detected short circuit, the output is deactivated for
100ms. Then a new start up will be executed. This diagnosis message
appears per channel.
8
)
In case of an I/O module doesn’t support hot swapping, do not perform
any hot-swap operations (also not on any other terminal units (slots)) as
modules may be damaged or I/O bus communication may be disturbed.
9
)
Diagnosis for hot swap available as of version index F0.
1.7.5.1.9 State LEDs
The LEDs are located at the front of module. There are 2 different groups:
● The 5 system LEDs (PWR, STA1-DP, STA2-DP, S-ERR and I/O-Bus) show the operation
state of the module and display possible errors.
● The 27 process LEDs (UP, UP3, inputs, outputs, CH-ERR1 to CH-ERR3) show the process
supply voltage and the states of the inputs and outputs and display possible errors.
Table 160: States of the 5 System LEDs:
LED Color OFF ON Flashing
PWR/RUN Green Process supply
voltage missing
Internal supply
voltage OK,
module ready for
communication
with IO Controller
Start-up / pre-
paring communi-
cation
Yellow --- --- ---
STA1-DP Green --- PROFIBUS run-
ning
Invalid device
parameters
STA2-DP Red No error Bus timeout No communica-
tion to Master
S-ERR Red No error Internal error --
I/O-Bus Green No expansion
modules con-
nected or com-
munication error
Expansion mod-
ules connected
and operational
---
Communication Interface Modules (S500) > PROFIBUS
2019/04/173ADR010121, 13, en_US970
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