Central Processing Unit
5–7
1070 072 145-102 (01.07) GB
Status 1 LED
Status 2 LED
on ZE200-DP
and ZE200A-DP
The Status 1 and Status 2 LEDs indicate the following operating statuses of
the PROFIBUS-DP interface, and of the ZE200-DP and ZE200A-DP central
processing units.
Status 1 Status 2 LED display Explanation
f f Extinguished Normal operation
F Illuminated Default master set is loaded. Factory shipped state
and/or master parameter set after RESET. DP configu-
ration must be loaded (via WinDP software).
FF Flashing One or more slaves report
D Slave configuration error (SKF)
D Slave not reachable (SNE)
D Slave not ready for cyclical data traffic (SNB).
(The BM-DP is not operated in Auto CLAB mode [Er-
ror_Action_Flag=0])
F F Illuminated When Stop LED on power supply (NT200) also illumi-
nates:
D Startup initialization routine (after Power-ON) is in
progress. Central processing unit is in Stop mode.
DP bus master is attempting to start using availa-
ble master parameter set. As long as this status
remains active, communication with the PG pro-
gramming device will blocked.
When Stop LED on power supply (NT200) does not
illuminate:
D ZE (central processing unit) hold time expired
D DP system has not yet been initialized. One or
more slaves are not reachable (SNE) or report con-
figuration error (SKF).
D The ZE was enabled
D In the event that subsequent DP system initializa-
tion is successful, this display will be reset.
F FF 1 illuminates, 2 flashes Clear Mode
D DP bus master has recognized a CLAB signal
source, and is now being operated in Auto CLAB
mode (Error_Action_Flag =1). CLAB sources are:
SNE (slave not reachable), SKF (slave configura-
tion error), SNB (slave not ready for cyclical data
transfer).
D Bus master is not enabled by the ZE. Possible
cause: ZE is in Stop mode. DP bus master is busy
with cyclical I/O data transfer. 00H is transmitted to
outputs (outputs deleted).
FF FF Simultaneous flashing, 2 Hz Addresses of centrally equipped I/O modules overlap
with decentrally assigned I/O addresses.
FF FF Flashing in alternation Master parameter set is missing or faulty. The DP con-
figuration must be loaded (with the use of WinDP con-
figuration software).
FFFF FFFF Rapid simultaneous flashing, 8 Hz Hardware fault, defective central processing unit
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