Siemens SIMATIC FM 452, Manual

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Settings
9-13
FM 452 Electronic Cam Controller
C79000-G7076-C452-04
9.6 Fast Cam Parameter Change
Definition
With the “fast cam parameter change” setting, you can modify up to 16 cams at the
same time during operation.
Requirements
The cams you want to modify must be valid.
Sequence of the Setting
1. Enter the number of cams to be modified in the channel DB.
2. Enter the number of the first cam to be modified in the channel DB.
3. Set the trigger bits for the required modifications.
4. Enter the new values in the channel DB.
5. Repeat steps 2 - 4 for each cam to be modified.
6. Set the appropriate trigger bit in the channel DB.
Data Used in the Channel DB
Absolute
Address
Name Type Initial Value Comment
37.0 CH16CAM_EN BOOL FALSE 1 = settings for fast cam parameter change
(16 cams)
176.0 C_QTY BYTE B#16#0 Number of cams to be modified
177.0 DIS_CHECK BOOL FALSE 1 =deactivate data check
Relative
Address
Name Type Initial Value Comment
+0.0 CAM_NO BYTE B#16#0 Number of the cam to be modified
+1.0 C_EFFDIR BOOL FALSE 1 = change the cam activation direction
+1.1 C_CBEGIN BOOL FALSE 1 = change the cam start to the value CBEGIN
+1.2 C_CEND BOOL FALSE 1 = change the cam end / on time to the value
CEND
+1.3 C_LTIME BOOL FALSE 1 = change the lead time to the value LTIME
+1.4 CAM_OFF BOOL FALSE 1 = deactivate the cam during the cam
modification
+1.5 EFFDIR_P BOOL FALSE 1 = activation direction positive (plus)
+1.6 EFFDIR_M BOOL FALSE 1 = activation direction negative (minus)
+2.0 CBEGIN DINT L#0 New cam start
+6.0 CEND DINT L#0 New cam end / new on time
+10.0 LTIME INT 0 New lead time