Siemens SIMATIC 505 - V-Memory Block Read; Block Read Data: PLC Module

Software Interface
2-12
2.6 Block Read Data: PLC → Module
The module performs a block read of 300 consecutive V -memory locations
starting at the V -memory location specified by WY5. See Figure 2-3.
T able 2-8 contains all the information necessary for the module to perform a
complete machine cycle, if so instructed.
Profile data consists of 5 sets of 44 values, followed by 5 hold values. The
44-value sets correspond to the 5 machine functions.
Clamp close data
(44 words)
Inject cycle data
(44 words)
Pack and hold data
(44 words)
Plasticate data
(44 words)
Clamp open data
(44 words)
Hold values
(5 words)
WY5
300
1–14
Constants and
tuning parameters
15–24 Profile step data
25–34 Setpoint data for
velocity loop
35–44 Setpoint data for
pressure loop
W ord assignments
typical of each profile:
Scaling constants
(10 words)
Discrete output control
(20 words)
Figure 2-3 V-Memory Block Read