Siemens S7-300 - Perform Fast Cam Parameter Change

Settings
10.6 Perform "Fast Cam Parameter Change"
FM 352 electronic cam controller
114 Operating Instructions, 05/2011, A5E01071724-03
10.6 Perform "Fast Cam Parameter Change"
Definition
The "Fast cam parameter change" setting can be used to modify a group of up to 16 cams
while the system is in RUN.
Requirement
The cams you want to modify must be valid.
Programming steps
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. Declare the new values at the channel DB.
5. Repeat steps 2 to 4 for each cam to be modified.
6. Set the relevant trigger bit in the channel DB.
Data used in the channel DB
Address
Absolute
Name Type Start
value
Comment
37.0 CH16CAM_EN BOOL FALSE 1 = write fast cam parameter change settings
(16 cams)
176.0 C_QTY BYTE B#16#0 Number of cams to modify
177.0 DIS_CHECK BOOL FALSE 1 = disable data check
Address
relative
Name Type Start
value
Comment
+0.0 CAM_NO BYTE B#16#0 Number of the cam to modify
+1.0 C_EFFDIR BOOL FALSE 1 = change the effective direction of the cam
+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 / activation time to
the value CEND
+1.3 C_LTIME BOOL FALSE 1 = change the lead time to the value in
LTIME
+1.4 CAM_OFF BOOL FALSE 1 = deactivate the cam during the cam
modification
+1.5 EFFDIR_P BOOL FALSE 1 = positive effective direction (plus)