
B–61863E/15
5. FUNCTIONAL INSTRUCTIONS
PMC SEQUENCE PROGRAM
299
This function reads various data items via the window between the PMC
and the CNC.
The “WINDR” is classified into two types. One type completes reading
a data during one scan time. Another type completes reading a data during
a few scan time. The former is called the function of a high–speed
response and the latter is called the function of a low–speed response.
ACT
WINDR
(SUB 51)
Control
data
address
W1
Fig. 5.46.2
ACT=0 : The WINDR function is not executed.
ACT=1 :The WINDR function is executed. Using the function of a
high–speed response, it is possible to read the data continuously
by always keeping ACT on. However, using the function of a
low–speed response, as soon as reading a data is completed,
reset “ACT” once (ACT=0).
CAUTION
Stopping the ladder with ACT set to 1 issues WN03 on the
PMC alarm screen (low–speed type). In this case, the
function command cannot be executed continuously. After
execution of the function command, set ACT to 0.
(a) Control data address
The PMC byte address is used to specify the area where control data
is stored.
5.46
WINDR (READING
CNC WINDOW DATA)
5.46.1
Function
5.46.2
Format
5.46.3
Control Condition
5.46.4
Parameter