SINUMERIK 840D/810D ShopMill

4PLCProgram
4.4 Description of blocks
4.4.3 Diagnostics function for start-up purposes
Description of
function
Example
Initialize diagnostics
function
Activate diagnostics
function
Acknowledgment
from diagnostics
function
Call
4-44
12.01
The diagnostics block FC34 is used to monitor the default signals affected by
the ShopMill PLC program (see Section 4.5 ”Standard interface signals for/from
ShopMill”). These signals must not be altered by the PLC user program. If
changes in the signals take place, the diagnostics block indicates this error in its
circular buffer for error messages (20 entries possible). If a signal is cyclically
changed, a new entry is conducted in the error message buffer in each PLC
cycle. This function is activated via the data block DB82 DBX60.0.
DBX60.0 = 1 (monitor_on)
DBX60.1 = 1 (monitor_initialize)
DBX60.0 = 1 (monitor_on)
DBX60.1 = 0 (monitor_initialize)
Error message1 (e.g. for DB11DBX0.1)
DBW62 current_number # 0 (error event counter) ......... 1
DBB64 db_number (decimal output) .................... 11
DBB65 byte_number (decimal output) ................... 0
DBB66 bit_number (decimal output) .................... 1
Error message 2 (e.g. for DB21DBX7.1)
DBW68 current_number # 0 (error event counter) ......... 2
DBB70 db_number (decimal output) .................... 21
DBB71 byte_number (decimal output) ................... 7
DBB72
etc.
bit_number (decimal output) .................... 1
The function block in OB 1 must be called in the following sequence:
Note
FC2 Basic program block
FC34 Diagnostics block
User program Part 1
(interlocking logic, FC19/24 machine control panel block)
FC30 ShopMill PLC program
FB110 Data transfer block for ShopMill tool management
in standard mode
User program Part 2
The tool box (PLC library) contains the example VAT82 for the variable table.
E Siemens AG, 2001. All rights reserved
SINUMERIK 840D/810D Description of Functions ShopMill (FBSP) - 12.01 Edition