Detailed Description
2.1 Various interface signals and functions (A2)
Basic logic functions: NC/PLC interface signals (Z1)
8 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.1.2 Selection/Status signals from HMI to PLC (DB10)
DB10
DBX103.0
HMI-Alarm is active
Edge evaluation: no Signal(s) updated: Cyclic
Signal status 1 or
edge change 0 → 1
At least 1 HMI-Alarm (Alarm-No. 100 000 to 105 999) is active.
Signal status 0 or
edge change 1 → 0
No HMI-Alarm is active.
DB10
DBX103.5
AT box ready
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change 0 → 1
The AT box for expansion modules is ready.
Signal state 0 or
edge change 1 → 0
The AT box is not ready. An expansion module conforming to the AT specification has either no
functionality or restricted functionality.
References /BH/ Operator Components, Manual, Chapter: "PCU 50 components, spare parts"
DB10
DBX103.6
PCU Temperature limit
Edge evaluation: no Signal(s) updated: cyclic
Signal status 1 or
edge change 0 → 1
The environment conditions of the limit value are in the permitted tolerance range of 5 to 55 degree
C.
Signal status 0 or
edge change 1 → 0
The temperature limit was either fallen below or exceeded.
The temperature monitor has responded and the PCU is disabled.
DB10
DBX103.7
PCU Battery alarm
Edge evaluation: no Signal(s) updated: cyclic
Signal status 1 or
edge change 0 → 1
The battery monitor has responded. Power failure can cause the loss of recently changed data and
a correct device configuration. A corresponding HMI alarm is reported. The PCU buffer battery is to
be tested. An insufficient battery voltage also affects the current time on the operator interface.
Signal status 0 or
edge change 1 → 0
No PCU battery alarm is active.
Signal irrelevant for
...
SINUMERIK 840/840Di/810D with PCU 50, PCU 20 or PCU 70
References /BH/ Operator Components, Manual, Chapter: "PCU 50 component, replace battery"
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