Siemens SIMATIC FM 452 Manual page 126

Settings
9.14 Cam and Track Data
Definition
With the setting "cam and track data", you read the current cam and track flag bits
and the position. The track flag bits are acquired before they are logically
combined with machine and channel data.
Sequence of the Setting
1. Enter a 1 in the FM_TYPE parameter of the channel DB as the type identifier.
This allows you to read 24 bytes of cam and track data.
If you enter 0 as the type identifier, only the cam flag bits (16 bytes) are read.
2. The data are stored in the channel DB.
Data Used in the Channel DB
Address Name
12.0 FM_TYPE
38.6 CAMOUT_EN
152.0 CAM_00_31
156.0 CAM_32_63
160.0 CAM_64_95
164.0 CAM_96_127
168.0 TRACK_ID1
172.0 ACTPOS1
9-28
Type Initial Value
BOOL FALSE
BOOL FALSE
DWORD DW#16#0
DWORD DW#16#0
DWORD DW#16#0
DWORD DW#16#0
DWORD DW#16#0
DINT L#0
Comment
0 = FM 352 up to V4.0
1 = FM 452 or FM 352 V5.0 or higher
1 = read cam and track data
Cam flag bits for cams 0 to 31
Cam flag bits for cams 32 to 63
Cam flag bits for cams 64 to 95
Cam flag bits for cams 96 to 127
Track flag bits of tracks 0 to 31
Current position
FM 452 Electronic Cam Controller
C79000-G7076-C452-04