Tag Fb - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

1.3

Tag FB

A Tag FB and a user-defined tag FB perform process control operation as a controller or an indicator. They perform
processing by accessing tag data defined as global labels.
The tag data defines data relevant to the instrumentation system as a structure. The execution status can be checked and
controlled by accessing the tag data from the faceplate of the engineering tool.
Tag FB
M+M_PID
Input
PVN
CASIN
CASOUT_T
(1) The tag FB performs processing by accessing the tag data or operation constants (public variables of the FB).
(2) The execution status of the tag FB can be checked and controlled on the faceplate of the engineering tool.
1 PROCESS CONTROL FUNCTION BLOCK
18
1.3 Tag FB
Output
MVN
CASOUT
Device/label memory
(1)
Operation variable
Tag data
(2)
Engineering tool