Memories: Example Application 1 - Siemens SIMATIC S7-300 Manual

Programming the FM 354
Example 2 See STEP 7 example application FMSTSVEX\EXAMPLE2
The following blocks are required, in addition to the technology functions, in
order to run this example application:
The following operating modes are supported in the example:
The associated data (velocity levels, MDI block, single functions, single
commands and program selection) are transferred automatically to the FM
when the appropriate write memories are set. If no action is performed on the
write job memories (M17.4 to M17.7), only control/checkback signals are
transferred.
If the memory "READ DATA" (M17.3) is set, data are read (basic operating
data).
You can acknowledge a diagnostic interrupt by setting the memory "RE-
START" (M17.0).
An example for calling data set DS 162 (evaluation of operator/travel errors)
is provided for special error evaluation at the end of FC 100. Data set 163
(evaluation of data errors) and data set 164 (evaluation of operating errors)
are called similarly.
OB 100 contains certain default settings for velocity levels, MDI block, servo
enable, simulation), operating mode (Jogging mode is active on start), mode
parameters and override (100 %); however these can be changed according to
the application.
Table 6-7
M16.0 Start
M16.1 Stop
M16.2 Direction minus
M16.3 Direction plus
M16.4 Not used
M16.5 Read–in enable
M16.6 Skip block
M16.7 Drive enable
M17.0 Restart
M17.1 Acknowledge operation/error
M17.2 Operating mode selection active
M17.3 Read data
6-42
DB 1 (user DB), FC 100 (example call),
OB 1 (cycle), OB 40 (process interrupt), OB 82 (diagnostic interrupt) and
OB 100 (cold restart).
Jogging
Reference-point approach
MDI block
Automatic
Memories: example application 2
Input memories used Output memories used
M20.0 Free
M20.1 Operator/travel errors
M20.2 Data error
M20.3 Channel parameterized
M20.4 Start enable
M20.5 Processing in progress
M20.6 Not used
M20.7 Dwell in progress
M21.0 Program scanning backward
M21.1 Synchronized
M21.2 Free
M21.3 Travel minus
FM 354 Servo Drive Positioning Module