Signals From The Nc To The Plc (Db10) - Siemens SINUMERIK 828D Function Manual

Z1: NC/PLC interface signals
19.1 Various interface signals and functions (A2)
DB10
DBX103.5 AT box ready
Signal state 0 or The AT box is not ready. An expansion module conforming to the AT specification has either no
edge change 1 → 0 functionality or restricted functionality.
Additional references /BH/ Operator Components Manual; PCU 50,
Chapter: Spare parts
DB10
DBX103.6 HMI temperature limit
Edge evaluation: No
Signal state 1 or The environment conditions of the limit value are in the permitted tolerance range of 5 to 55 degree
edge change 0 → 1 C.
Signal state 0 or The temperature range was either exceeded, or the temperature fell below the limit.
edge change 1 → 0 The temperature monitor has responded and the PCU is disabled.
DB10
DBX103.7 HMI battery alarm
Edge evaluation: No
Signal state 1 or The battery monitor has responded. Power failure can cause the loss of recently changed data and
edge change 0 → 1 a correct device configuration. A corresponding HMI alarm is reported. The HMI buffer battery
should be checked. An insufficient battery voltage also affects the current time on the operator
interface.
Signal state 0 or No HMI battery alarm is present.
edge change 1 → 0
Signal irrelevant for SINUMERIK 840/840Di with PCU 50, PCU 20 or PCU 70
...
Additional references /BHsl/ Operator Components Manual
Chapter: Replacing the battery
19.1.3

Signals from the NC to the PLC (DB10)

DB10
DBX104.7 NCK CPU ready
Edge evaluation: no
Signal state 1 The NCK CPU is ready and registers itself cyclically with the PLC.
After a correct initial start and the first complete OB1 cycle (initial setting cycle) the PLC and NCK
continuously exchange sign of life signals.
The PLC basic program sets the interface signal "NCK CPU Ready" to 1.
Signal state 0 The NCK CPU is not ready.
If a sign of life is not received from the NCK, the PLC/NCK interface is neutralized by the PLC basic
program and the interface signal "NCK CPU Ready" is set to 0.
The following measures are introduced by the PLC basic program:
•
•
•
Additional references /DA/ Diagnosis Manual
/FB1/ Functions Manual basic Functions, PLC Basic Program (P3)
1612
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Status signals from NCK to PLC (user interface) are deleted (cleared)
Change signals for help functions are deleted
Cyclic processing of the user interface PLC to NCK is terminated.
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions